Arduino & SCM Supplies

Type:Voltage Regulator1. Power: Standard2. Number of pins: Standard3. Use: Standard4. Package: High voltage generator5. Standard: Application Area 3C Digital6. Input voltage: DC 3V-7.2V7. Input current: 2A-5A8. High voltage type: Pulse current type9. Output voltage: About 200,000 volts (please pay attention to safety when using)10. High voltage two pole discharge distance: 10mm-20mm11. Output high voltage line length: About 100mm12. Input power cord length: About 100mm (red line is positive)13. Dimensions: D 24*64mm

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1. Small size, easy to operate2. High current resistance, anti-reverse connection, safe wiring3. Set parameters, power off, long-term memory4. Support acceleration and deceleration functions can be set through the menu5. Scope of application: motor8. Power supply voltage: DC8-55V (wide voltage anti-reverse protection)9. Working temperature: -20 to 70 degrees Celsius10. Speed range: long press/short press to adjust11. Driving current: up to 10A (recommended 12A fuse in series at the output end)12. Standby current: less than 17mA13. Mounting hole: diameter 3mm14. Power consumption: 400W15. Dimensions: 70 x 40 x 23mm16. Weight: 40.5g

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1. Input voltage range: 4-40V DC; 2. Output voltage range: 1.25-37VDC adjustable; 3. Output current: 2A; 4. Voltmeter range: 0 to 40V, error +/-0.1V; 5. Input reverse polarity protection; Built in output short protection function; 6. Built in thermal shutdown function; 7. Press the rightkey to let the display show the input or output voltage. when the right out led light, it shows output, the left IN led show input.8. Model: LDTR-WG01789. Quantity: 1 piece10. Form Color: Deep Blue11. Material: PCB + electronic components12. Dimensions: 2.36 in x 1.38 in x 0.55 in (6 cm x 3.5 cm x 1.4 cm)13. Weight: 0.74 oz (21 g)14. Packing List: 1 x Module

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Features 1. Latest IC programming procedure preventing accidentally remove code.2. 4-Channel Wireless Remote Control Duplicator for Cars, Car Sunroofs, Garage Doors, Gate Doors, Alarm Systems, Heating Systems, Home automation e.g. Lighting and etc.3. This is a fixed frequency remote cloner 433mhz for copying 99.99% common fixed & learning code remote controls.4. Clone up to 2 remote signals from 2 different remotes.Specification1. Color: Black2. Material: Plastic3. Button: 4 Buttons4. Size: As picture shown5. Frequency: 433 mhz6. Transmit distance: 50-100m (Open space)7. Operation: 6V DC Battery CR2016 (2x 3V CR2016 Battery included)8. Decoder IC: All learning code/fixed code. (All manufacturers)9. Such As: 2260 (All manufacturers) / 2262 (All manufacturers) / PT2264/ 5326 (All manufacturers) / SC5262/ HT600/ HT680/ HT6207/ HT6010/ HT6012/ HT6014/ SMC918 series/ 527 (All manufacturers) / 1527 (All manufacturers) / 2240 (All manufacturers) and so on.10. Please note: Rolling code and special fixed code can not be cloned.11. Package includes :- 1 x 4-Channel Remote Control (With battery)How to ProgramStep-1 Clear the history code from duplicator1. Press button A and B continuously until LED flash 3 times2. Release button B (Keep pressing button A),and press button B Slowly for 3 times, LED flash3. Release button A,finish code clearance.- If code clearance done properly, short press any button. Light wont flash at all.- If light flash when short press any button clearance process done wrong. Please repeat clearance process again.Step-2 Copy code from original transmitter1. Place the cloner remote and the original remote close together side by side. Make sure they are touching.2. Simultaneously press a button on your original remote and one of the buttons on the clone remote and hold until the LED on the clone remote flashes steadily.3. The Blue LED will first flash 3 times quick, then stops for a second, then flashes steadily.4. Release both buttons. Programming is successful. Copy other buttons in same way.

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1. Standard Raspberry Pi connectivity, compatible with Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+ 2. IPS screen, wide viewing angle, better display High definition in small size 3. 1x joystick, 3x pushbuttons, handy and useful 4. Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32) 5. Driver: ST7789 6. Interface: SPI 7. Display color: RGB, 65K color 8. Resolution: 240x240 9. Backlight: LED 10. Operating voltage: 3.3V

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1. One-button emergency stop function (STOP button) is more convenient to use2. Voltage input anti-reverse connection circuit, worry-free wiring3. Setting parameters power off, power off memory function4. Added sleep mode, automatically turn off the display if there is no operation within 5 minutes5. Working voltage: DC5-30V6. Output capacity: Controllable equipment within DC 30V/10A or AC 250V/10A7. Working temperature: -40 to 85 degrees Celsius8. Signal source: high level trigger DC 3.0V-24V9. Mounting hole: diameter 3mm10. Power consumption: 400W11. Dimensions: 70 x 40 x 23mm12. Net weight: about 44g

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1. Input: 9V-36V2. Output: 5V / 3A (MAX)3. Efficiency: 92% (MAX)4. Switching frequency: 150KHZ5. Operating temperature: -40 degree C - + 85 degree C 6. Load capacity: Maximum output 3A (at the same time with two mobile phones)7. Application: mobile power, mobile phones, flat-panel USB5V powered devices8. Model: LDTR-WG02579. Material: PCB + Electronic Components10. Weight: 27g 11. Size: 7cm x 2.2cm x 2.5cm12. Package included: 1 x DC Power Module

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1. Metal gear, stable transmission and wear-resistant2. Pure copper motor, effectively insulates dust and high temperature3. 304 stainless steel folding, high-precision gear box4. Features: Durable, dust-proof, anti-skid, high temperature resistance, abrasion resistance5. Rated voltage: 6/12v6. Application: electronic locks, smart cars, robots, cameras, etc.7. Size: about 14x17x35mm8. Material: 304 stainless steel

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1. 320x480 resolution, resistive touch control, 8:5 aspect ratio. 2. Supports any revision of Raspberry Pi (directly-pluggable). 3. Drivers provided (works with your own Raspbian/Ubuntu directly). 4. Size perfectly fits the Pi. 5. High quality immersion gold surface plating. 6. Support Raspbian system, enables your system to: Take photos by touching (up to 17 camera modes).Support software keyboard (system interaction without keyboard/mouse). 7. 3.5 inch RPi LCD (A) and 3.5 inch RPi LCD (B) are hardware compatible with each other (use different driver), and can be mutually substituted in most cases. (A) for low cost ver. while (B) for IPS ver. with better displaying

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1. Number of component pairs: 1272. Assembly pressure: 85N/cm23. Be sure to apply thermal grease when installing the radiator4. The literal is cold side, and the non-literal is hot side5. Packaging process: standard 704 silicone rubber seal around6. Packaging standard: foam box packaging, storage conditions ambient temperature -10 ~ 40 degrees Celsius7. Working environment: temperature range -55～83 degrees Celsius (excessive ambient temperature will directly affect the cooling efficiency)8. The working state of the cooling plate is that one side is cooling and the other side is heating, and the heating surface must be well dissipated during work. It is strictly forbidden to energize for more than 2 seconds without heat dissipation, so as to avoid overheating and burning.9. Dimensions: 12703: 40x40x4.0mm, 12709: 40x40x3.4mm, 12710: 40x40x3.4mm, 12715: 40x40x3 .3mm10. Other parameters:- 12703: Wire specification: lead length 310+/-5mm, RV standard wire, single head 5mm tin-plated, internal resistance: 4.0~4.3 ohms (ambient temperature 23+/-1 degrees Celsius, 1kHZ Ac test), working current: Imax=12 ( When starting at rated voltage), rated voltage: DC12V (Vmax: 15.5V), cooling power: Qcmax 27W- 12709: Current: less than or equal to 9A, temperature difference: less than or equal to 68 degrees Celsius, voltage: less than or equal to 15.2V, hot end temperature: 82W- 12710: Wire specification: lead length 300+/-5mm, RV standard wire, single head 5mm tin plated, internal resistance: 1.2~1.5 ohms (ambient temperature 23+/-1 degrees Celsius, 1kHZ Ac test), working current: Imax=10A ( 15Vmax voltage start), rated voltage: DC12V (Vmax: 15.5V), cooling power: Qcmax 92W- 12715: Voltage: less than or equal to 15.4V, current: less than or equal to 15A, cold output: 134W

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1. Produced with precision components, low power consumption, no switch, can work after plugging in the power supply, with colorful breathing lights2. Acting on the space environment, it can relax peoples body and mind, improve the body perception of sound and images, improve human health, work efficiency, and mental stress.3. It can be placed on the table or bookshelf 1.5 meters above the ground in the bedroom4. All-around design, no dust accumulation will affect the circuit5. Front and back double-sided transmitting antennas6. Input voltage: DC12V7. Current: above 0.5A8. Material: PCB

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1. Input voltage: 8-60V2. Input current: 0-15A3. Output voltage: 10-120V4. Output current: 0-15A5. Power: 900W6. Working frequency: 150KHz7. Short circuit protection: 20A fuse8. Control mode: digital control + digital tube display9. Voltage regulation/display resolution: less than 100V/0.01V, greater than 100V/0.1V10. Current adjustment/display resolution: less than 10A/0.01A, greater than 10A/0.1A11. Output ripple: within 50mV12. Weight: about 243g13. Size: about 11x9.6x4.6cmFeatures:1. Using a microprocessor, the output voltage and current can be adjusted2. With memory saving function, 10 groups of parameters can be stored, and can be stored and recalled freely3. The use of power devices, combined with the CV and CC loops formed by peripheral precision op amps, improves the overall performance of the module4. With input voltage regulation protection function5. With constant voltage, constant current function6. Using 4-bit high-brightness digital tube, it can display parameters such as output voltage, current, power and capacity in real time7. Automatic/manual switch to display parameters such as voltage, current, power, capacity, etc.8. With output OUT, constant voltage CV, constant current CC indicator, you can check the working status in real time9. It can be set whether to output automatically after power-on10. The current set voltage and current value can be saved with one key

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1. Voltage: DC12-24V2. Frequency: 50/60HZ3. Installation method: indoor, ceiling installation4. HF system: 5.8GHz CW radio wave, ISM band5. Transmitting power: less than 10mW6. Power: 70W (DC 12V)7. Detection angle: 360 degrees8. Distance: about 1-10m (radius) adjustable9. Working delay: 10 seconds to 3 minutes10. Light control illumination: about 2-2000 LUX11. Power consumption: about 0.5W12. Description: 807 with power output, 807K without power output13. Applicable environment: corridors, toilets, living rooms, corridors, warehouses, garages, etc.14. Installation reminder: the induction switch has a transmission blind spot in the central area. If it is installed in a small indoor environment (such as bathroom, kitchen), try to install it on the side or in the corner, so that the induction area will be more effective on the side. otherwise, the vertical center activity may not be sensed15. Size: about 7.6x4.1x3.9cm

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1. Wide range of applications 2. Easy to operate 3. Small size 4. Stable performance 5. Voltage specification: 12V 6. Module size: 5 x 4.4 x 1.8cm (manual measurement) 7. Net weight: 24g 8. Module function: When the water level is lower than the B probe, the water is automatically pumped. 9. Stop pumping when the water level reaches the C probe. 10. The A/B/C water level sensing line can be used with ordinary wires, and the wire ends are exposed to 5CM. Automatically pump water when the water level is below point B 11. Stop pumping when the water level is above point C

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Specifications1. Supply voltage: DC 12V 2. Trigger terminal voltage: DC 5~30V (can also be triggered by button) 3. Relay control current: 10A 4. Module size: 63 x 42 x 20mm (length, width and height)Specifications Set1. Press and hold the S1 key and do not let go, after 0.5 seconds, the display will display P-xx, press S2 and S3 to change the working mode. 2. After selecting the working mode, short press the S1 key to enter the A time setting, and the screen displays Axxx. At this time, press the S2 and S3 keys to modify the A time parameters. Short press the S2 and S3 keys to add or subtract 1, and long press to quickly add or subtract. 10. Press the S4 key to set the position of the decimal point. 3. After setting the A time, press the S1 key to set the B time, and the screen displays bxxx. At this time, press the S2 and S3 keys to modify the B time parameters. Short press the S2 and S3 keys to add or subtract 1, and long press to quickly add or subtract. 10. Press the S4 key to set the position of the decimal point. 4. After setting the B time, press the S1 key for the last time to exit the setting state and save all parameters.About The Product1. Multifunctional time relay module, a variety of working voltages are optional, DC12V 2. The output terminal is isolated from the circuit by a relay, which can control low-voltage electrical appliances and 220V lines, with a control capacity of up to 10A. 3. There are as many as 27 working modes to meet various testing and automatic control applications, and the delay time is adjustable from 0.01 seconds to 999 minutes. 4. The trigger port can be triggered by a voltage signal, or it can be triggered by a button.Point Position1. Ax.xx decimal point is in the hundreds place, the time range is 0.01~9.99 seconds 2. Axx.x decimal point is in ten place, time range is 0.1~99.9 seconds 3. Axxx. The decimal point is in the one place, the time range is 1~999 seconds 4. Axxx has no decimal point, the time range is 1~999 minutes 5. Turn off the display: In the non-setting state, press the S4 key to turn off the display, and press it again to turn it on again.

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1. Interface standard: compliant with RS485 standard2. Physical interface: RS485 wiring terminal3. Communication rate: 300-460800bps baud rate (adaptive)4. Support points: each RS485 interface can support up to 32 nodes5. Communication distance: 1200m (9600bps), the higher the communication rate, the shorter the distance6. Working mode: RS485 two-wire (A, B), half-duplex transparent transmission7. Power supply voltage: DC 9-24V8. Transmission medium: ordinary parallel wire/twisted pair9. Size: about 12.1 x 7.2 x 3cmFeatures:1. 8-way RS485 slave port can be extended by one 485 master port with isolation and relay2. RS485 network relay, extension and isolation functions can be realized3. The isolated RS485 interface at the RS485 master port can be connected to RS485 master control devices, and the extended 8-way isolated RS485 interface can be externally connected to various RS485 slave devices, such as RS485 sensors, etc.4. Built-in optoelectronic isolation protection circuit, RS485 master and slave devices are isolated, which can effectively protect RS485 master and slave devices from the damage of ground potential difference between devices, static electricity, surge, which can be applied to industrial environment with high requirements of reliability and safety5. Wide baud rate range, support 300-460800bps wide baud rate communication range (self-adaptive)6. Support 35mm standard rail with rail clips, easy to install

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1. Size: 6.8CM x 2.1CM2. Main chip: NE5553. Working voltage: DC 12V/5VFeatures:1. The relay time delay and power supply is connected.Specific as follows: for 12V/5V power supply to the relay, relay not immediately and absorption, relay the output status to: normally open and public disconnect, normally closed and public conduction;Wait for delay 1-10 s (adjustable), relay and absorption, at this point, the relay outputs status to: normally open and public conduction, normally closed and public disconnected;As long as the module power continuously, this state will remain.2. The delay time is adjustable, (0-10 seconds)4. Increase the potentiometer to increase the delay time5. Increasing the capacitor C1 can increase the delay time6. With input power indicator light7. With relay pull-in indicator light8. It can control AC 220V/10A equipment. (Large control equipment 2000W)9. With relay freewheeling protection.10. Delay time formula: T=1.1RC. For example: capacitor 100uf resistor 100K T=1.1 x 100000 x 0.0001=11 secondsApplications1. The on-board equipment on the time delay, prevent excessive current when the car lighter burned on-board equipment.2. Need to have order to start the occasion, to prevent multiple devices at the same time starting current is too large burning appliances.

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1. With charging and discharging status indication: red light blinks when charging, red light stays on for full, and blue light blinks when discharging2. Built-in charging and discharging power MOS 3. Input voltage: 3.7-5.5V4. Charging current: 1A5. Output current: 1A6. Output voltage: 5V 7. BAT discharge termination voltage: 2.9V 8. Preset 4.2V charging voltage, accuracy about 1%9. Discharge efficiency: 85% (input 3.7V, output 5V/1A)10. 8uA standby current 11. Integrated charge management and discharge management12. Intelligent temperature control and over-temperature protection 13. Integrated output over-voltage/short circuit/heavy load/over-charging/over-discharging protection 14. Support trickle mode and zero voltage charging15. Available batteries: 18650 batteries, cell phone batteries, tablet batteries, MP3 batteries, such as 3.1V-4.2V polymer lithium batteries (Note: Parallel to increase the capacity, series is to increase the voltage, can only be used in parallel)16. Unusable batteries: dry cell batteries, storage batteries, 1.2V rechargeable batteries, nickel-metal hydride batteries, 3.2V lithium iron polymer lithium batteries, etc.17. Size: about 20 x 18 x 1mm

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1. Low-power SoC equipped with RISC-V 32-bit single-core processor, clocked at up to 160MHz2. Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE)3. 400KB SRAM and 384KB ROM, and 4MB onboard flash memory4. Castle-shaped module and on-board ceramic antenna, allowing direct soldering to the carrier board5. Support flexible clock and module power independent settings and other controls to achieve low power consumption in different scenarios6. Integrated USB serial port full-speed controller, 15×GPIO pins, pin functions can be flexibly configured7. 3×SPI, 1×I2C, 2×UART, 1×I2S, 2×ADC, etc.8. Product size: 23.5 x 18mm9. Weight: 2g, 3g

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Module performance and features:1. With voltmeter display and voltmeter can be self-calibrating, using a more advanced voltage microprocessor, voltmeter error 0.05V, range 0-40V (Note: To ensure the accuracy of the voltmeter, please ensure that the input voltage is above 4.5V)2. With power indicator, touching the button to switch the measurement of input or output voltage, and there is an indicator to show which voltage is being measured, and save the settings, even if the power is off and on again3. Voltmeter can be turned off, when not needed when touching the left button can be easily realized4. With terminal block, easy to use without soldering iron, and retain the soldering wire junction point5. Input voltage 4.0-38V (input voltage must be higher than output voltage by more than 1.5V)6. Adjustable output voltage range 1.25V-36V continuously adjustable (input voltage must be 1.5V higher than output voltage)7. Output current up to 5A, it is recommended to use within 4.5A8. Output power up to 75W, more than 50W, please strengthen the chip cooling (that is, must add a small heat sink)9. High conversion efficiency, up to 96% (efficiency and input and output voltage, current, pressure difference)10. Operating frequency: 180KHZ11. Load adjustment rate S (I) less than 0.8 percent, voltage adjustment rate S (u) less than 0.8 percent12. With thermal protection and short-circuit protection (but short-circuit there is an accident, try not to short-circuit)13. Board size: about 7 x 4.7 cmApplications:DC/DC step-down module is used in the field of input voltage higher than the output voltage step-down, such as batteries, power transformers, DIY adjustable voltage regulator power supply, LCD monitors and LCD TVs, portable instrument power supply, telecom/network equipment, 24V car laptop power supply, industrial equipment step-down, 12V step-down to 3.3V, 12V step-down to 5V, 24V step-down to 5V, 24V step-down to 12V, 36V to 24V, etc.

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1. This module complies with international safety standards, with isolation slots between the control area and the load area2. Using relays, with power and relay action indication, absorb bright, disconnect not bright3. When there is signal at the signal input, the common terminal and the normally open terminal will conduct4. It can be used as a microcontroller development board module, and can be used for home appliance control5. Control DC or AC signals, can control 220V AC loads6. There is a normally open and a normally closed contacts7. Blue KF301 terminals to connect the control line is more convenient8. Weight: about 12.4 g9. Size: about 4.3 x 2.7 cmAbout the high level and low level trigger mode description:1. High level triggering refers to the triggering mode where there is a voltage between the signal input and ground, which can be understood as a mode of triggering by short-circuiting the signal input and the positive pole of VCC2. Low level trigger refers to the trigger mode where the voltage between the signal input and the ground is OV, which can be understood as a mode where the signal input is triggered by a short circuit with the negative pole of GND

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Description1. Onboard TJA1050 CAN controller interface chip2. Chip commonly used pin has led, convenient connection to use3. Pin 5v to power supply4. PCB board size: 22 (mm) x11.5 (mm)Specification1. Brand: Landa tianrui2. Model: LDTR-WG02103. Quantity: 1 piece4. Color: Blue5. Material: PCB6. Chipset: TJA10507. Dimensions: 2.2 cm x 1.2 cm x 0.5 cm8. Weigh: 5g9. Package List: 2 x TJA1050 CAN Controller Interface Module

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Features1. Input voltage range: DC 10V-60V2. Rated current: continuous operating current within 6A3. Function: control DC brush motor speed, forward, stop, reverse4. Installation method: panel type, and wiring according to wiring diagram5. Brand: Landa tianrui6. Model: LDTR-WG02657. Material: FR-48. Dimensions: 9.8 cm * 9.1cm* 6cm9. Weight: 124 g10. Package Included: 1 x Motor Speed ControllerNote1. The input of the DC motor governor is DC, and it cannot be directly connected to AC (for example, household 220V AC), otherwise it will burn out.2. The positive and negative poles of the DC power cannot be reversed, otherwise the governor will be bad.3. The motor is not divided into positive and negative. When the running direction is inconsistent with the expectation, the direction can be changed by adjusting the line sequence.4. The potentiometer knob can change the governor output duty cycle, thus changing the motor speed.

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Features1. High efficiency, high torque, low heat generating2. Control the speed of a DC motor with this controller3. With reverse polarity protection, high current protection4. With potentiometer5. With reversible switch6. Speed controller is made with high quality circuit board which ensures a longer service life7. This simple and easy-to-use DC motor speed controller has an stable performance8. The output current of this motor speed controller can be adjusted from 6A to 10A, and it is simple to set9. This motor speed controller uses screw terminals for convenient and quick wiringSpecifications1. Input Voltage: DC 6V-30V2. Output Voltage: Linear with load3. Output Current: 6A-10A4. Power: Max. 200W5. Speed Range: 0% to 100%6. Regulation Method: Potentiometer7. Regulation Type: Regulating Current8. Control Frequency: 16KHz9. Wiring Type: Screw terminal10. Rotary Knob Wire Length: 20cm 11. Brand: Landa tianrui12. Model: LDTR-WG026613. Material: FR-414. Dimensions: 7.4 cm * 4.7 cm* 2.8cm15. Weight: 68 g16. Package included: 1 x PWM DC motor speed controller

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Features1. The potentiometer adjusts the volume with a switch for easy control of the volume, making it good for DIY speakers.If it is a metal box, you need to bring out the Bluetooth antenna. 2. The copper DC connector is used to withstand high current and no heat. 3. Capacitor 470uf35V solid capacitors ensure power storage and heat dissipation, and stable power supply is a prerequisite for good sound quality. 4. Free DC head lead, compatible with the input power interface of this product, even if you do not have a DC head adapter or battery, it can be easily wired. 5. Bluetooth 5.0 version, the transmission efficiency is higher, the transmission distance is farther. Precautions for use: The power switch on the board is the standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug the DC plug on the machine for a long time.Specification1. Material: ABS plastic 2. Bluetooth version: 5.0 3. Adaptation supply voltage: 5-24V(optional 9/12/15/18/24V adapter, high power recommended high voltage) 4. Adapter speaker: 30-200W, 4 ohms, 8 ohms 5. Number of channels: Left and right stereo(stereo) 6. Bluetooth transmission distance: 15m(without occlusion) 7. Protection mechanism: Self-recovery overheat protection, self-recovery short circuit protection 8. Size: 55 x 38 x 17mm Tip: To have enough out put power if the input is sufficient and the supply voltage/current is sufficient. The power supply voltage is higher and the relative power will be larger. The speakers with different impedances will have different output power. In the case of sufficient voltage and current, the larger the ohms of the horn, the smaller the relative sound powre. Please pay attention! Power supply voltage: 12V--8 ohm speaker/12W(left channel) + 12W(right channel), 4 ohm speaker/20W + 20W 15V--8 ohms/18 + 18W, 4 ohms/greater than 30 + 30W 19V--8 ohms/32 + 32W, 4 ohms/greater than 45 + 45W 24V--8 ohms/38 + 38W, 4 ohms/greater than 50 + 50W

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Features1. The potentiometer adjusts the volume with a switch for easy control of the volume, making it good for DIY speakers.If it is a metal box, you need to bring out the Bluetooth antenna. 2. The copper DC connector is used to withstand high current and no heat. 3. Capacitor 470uf35V solid capacitors ensure power storage and heat dissipation, and stable power supply is a prerequisite for good sound quality. 4. Free DC head lead, compatible with the input power interface of this product, even if you do not have a DC head adapter or battery, it can be easily wired. 5. Bluetooth 5.0 version, the transmission efficiency is higher, the transmission distance is farther. Precautions for use: The power switch on the board is the standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug the DC plug on the machine for a long time.Specification1. Material: ABS plastic 2. Bluetooth version: 5.0 3. Adaptation supply voltage: 5-24V(optional 9/12/15/18/24V adapter, high power recommended high voltage) 4. Adapter speaker: 30-200W, 4 ohms - 8 ohms 5. Number of channels: Left and right stereo(stereo) 6. Bluetooth transmission distance: 15m(without occlusion) 7. Protection mechanism: Self-recovery overheat protection, self-recovery short circuit protection 8. Size: 55 x 38 x 17mm Tip: To have enough out put power if the input is sufficient and the supply voltage/current is sufficient. The power supply voltage is higher and the relative power will be larger. The speakers with different impedances will have different output power. In the case of sufficient voltage and current, the larger the ohms of the horn, the smaller the relative sound powre. Please pay attention! Power supply voltage: 12V--8 ohm speaker/12W(left channel) + 12W(right channel), 4 ohm speaker/20W + 20W 15V--8 ohms/18 + 18W, 4 ohms/greater than 30 + 30W 19V--8 ohms/32 + 32W, 4 ohms/greater than 45 + 45W 24V--8 ohms/38 + 38W, 4 ohms/greater than 50 + 50W

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1. Metal gear, stable transmission and wear-resistant2. Pure copper motor, effectively insulates dust and high temperature3. 304 stainless steel folding, high-precision gear box4. Features: Durable, dust-proof, anti-skid, high temperature resistance, abrasion resistance5. Rated voltage: 6/12v6. Application: electronic locks, smart cars, robots, cameras, etc.7. Size: about 14x17x35mm8. Material: 304 stainless steel

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1. This is a plant watering alarm - as simple as that. You put it into the soil near a plant and it emits a tiny chirp when the soil is dry, reminding you to water the plant. It uses capacitive humidity sensing as opposed to resistive humidity sensing, this means, it does not make an electric contact with the soil, avoiding electrode corrosion and soil electrolysis and resulting in better accuracy and longer battery life.2. Special care has been taken not to make it yet another source of annoyance - This sensor will be silent when it’s dark and will restrict itself from making too much noise.3. The alarm level can be set for each plant individually. As water is consumed by the plant, it will detect the low moisture level and will start to emit rare short chirps. As more water evaporates, it will increase the alarm rate. This sensor can detect if it’s day or night by measuring the amount of ambient light and will not make noise when it’s dark.4. Package included: 1 x Plant Watering Alarm Sensor

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1. Size: 38mm (length) X22mm (width) X14mm (height)2. Weight: 8g3. Working voltage: 3.3--5.5V4. Clock chip: High-precision clock chip DS32315. Clock accuracy: Within 0-40 degree C, accuracy 2ppm, annual error about 1 minute6. With 2 calendar alarm clocks7. Programmable square wave output8. Real-time clock generates seconds, minutes, hours, week, date, month and year time, and provides leap year compensation valid to 2100 years9. The temperature sensor inside the chip has an accuracy of +/- 3 degree C10. Memory chip: AT24C32 (storage capacity 32K)11. IIC bus interface, high transmission speed 400KHz (when working voltage is 5V)12. Can cascade other IIC devices, 24C32 address can be modified by short circuit A0 / A1 / A2, the default address is 0x5713. With rechargeable battery LIR2032 to ensure that the clock still runs normally after the system is powered off14. Packing: Single anti-static packaging15. Wiring instructions (taking Arduino uno r3 as an example):SCL -- A5SDA -- A4VCC -- 5VGND -- GND16. DS3231 is a low-cost, high-precision I2C real-time clock (RTC) with integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device contains a battery input, which can maintain accurate timing when the main power is disconnected. The integrated crystal oscillator improves the long-term accuracy of the device and reduces the number of components in the production line. The DS3231 offers commercial and industrial temperature ranges and is available in a 16-pin 300mil SO package.17. RTC saves seconds, minutes, hours, day, date, month and year information. Months less than 31 days will automatically adjust the end of the month, including corrections for leap years. The working format of the clock can be 24 hours or a 12-hour format with / AM / PM indication. Provide two configurable calendar alarms and a configurable square wave output. The address and data are transferred serially via the I2C bidirectional bus.Sophisticated, temperature-compensated voltage reference and comparator circuits are used to monitor VCC status, detect power failures, provide reset outputs, and automatically switch to backup power when necessary. In addition, the / RST monitor pin can be used as a manual input to generate a μP reset.18. In addition to high timing accuracy, the DS3231 also has some other functions that expand the additional functions and selection range of the system host. The device integrates a very accurate digital temperature sensor, which can be accessed through the I2C * interface (just like time). The accuracy of this temperature sensor is +/- 3 degree C. The on-chip control circuit can realize automatic power supply detection and manage the power supply switching between the main power supply and the backup power supply (that is, the low-voltage battery). If the main power supply is powered down, the device can continue to provide accurate timing and temperature without affecting performance. When the main power supply is re-energized or the voltage value returns to the allowable range, the on-chip reset function can be used to restart the system microprocessor.

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Main Features: 1. Brand new Ultrasonic Sensor HC-SR04 Distance Measuring Module 2. Features 4-mode connections: VCC / trig (T) / echo(R) / GND 3. With electric frequency output signal from 0V to 5V 4. Has high precision up to 3mm 5. 5VDC power supply 6. Detecting distance is from 2cm to 450cm Module Working Principle: 1. Adopt IO trigger through supplying at least 10us sequence of high level signal 2. The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal 3. If there is signal returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving

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Main Features: 1. Working current: DC 3.3V / 13 - 26mA 2. Idle current: DC 3.3V / 10 - 13mA 3. Sleep current: < 80uA 4. Peak current: < 30mA 5. Working frequency: 13.56MHz 6. Supports card: Mifare1 S50, mifare1 S70, mifare Ultralight, mifare Pro, mifare Desfare 7. Application: Various electronic products and DIY projects

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1. In resistance tester circuit, it is necessary to adjust the potentiometer to balance the resistance tester. Under the influence of temperature, humidity and vibration impact, the position and specifications of the potentiometer will be changed when being used, the system index is also changed. Therefore, to make the system back to the original state it needs to be adjusted, and digital potentiometer module can just solve this problem.2. The digital potentiometer changes in steps or incrementally, and the resistance is of linear change. For example, the resistance range of X9C104 is 40R~1000k, divided into 100 steps, so each increment is 1010R.3. With temperature compensation function: the resistance deviation between endpoints is +/-20%;4. Sliding end data can be kept for a long time, about 100 years;5. With 1% high resistance resolution;6. Working voltage: 5V;7. Total resistance: 100kΩ;8. End voltage: -5~5V;9. Tap number: 100;10. Interface: CS, U/D, INC;11. Resistance increase mode: Linear change;12. Working current: 3mA;13. Package temperature: 8SOIC/-40~85 C;14. Taps will automatically store data when being off.15. Package included: 1 x X9C104 Digital Potentiometer Module

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Type:Voltage Regulator1. Packaging Electrostatic bag2. It use the same as official R3 board3. Use: Instrument4. Power supply voltage: 5v~9v5. Output voltage: 5V DC voltage output and 3.3V DC voltage output6. Plug in the development board, the driver will be installed automatically7. Select the board in die8. Select the COM port, this can be queried in my computer, just the port inside your development board9. It is best to choose the program that comes with it, PROGRAMMER it in.10. Added pin header, easy to use

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Overview Due to the advantages of ultra-low power consumption, wide viewing angle, and clear display without electricity, it is an ideal choice for applications such as shelf labels and industrial instruments. Features 1. Without backlight, the last content can be displayed for a long time even if it is turned off 2. Ultra-low power consumption, basically only need to refresh the power supply 3. Attached with development resources and manuals (example of Arduin-esp32) Product specifications 1. Working voltage: 3.3V 2. Interface: 3-wire SPI, 4-wire SPI 3. Display color: black, white 4. Grayscale: 2 5. Full refresh time: 8s 6. Refresh power: 26.4mW (typical value) 7. Driver chip: DEPG0213BN ESP32 features: 1. Immersion Gold Craft 2. High cost performance 3. Small size, easy to embed other products 4. Powerful function supports LWIP protocol, Freertos 5. WiFi supports three modes: AP, STA and AP + STA 6. Support Windows system (cygwin and msys32) and Linux system 7. Support Arduino-ide, ESP-IDF, Micropython multiple development environments 8. Support Lua program, easy development

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Features1. Using Bluetooth 5.0 main control chip, good transmission effect and high stability 2. With button control, there are control up and down music, volume addition and subtraction, playback, pause, switch machine, etc., and reserved high and low level control interfaces, regardless of daily use, and DIY modification, it is very playable 3. Micro 5 Pin interface power supply, ordinary mobile phone charger charging cable can be used. 4. Product use: Bluetooth audio signals from mobile phones, laptops, and tablets can be transmitted to power amplifiers, active speakers and other devices through this Bluetooth audio receiver. The audio interface can also be connected to ordinary headphones with a 3.5mm interface. The headset becomes a Bluetooth headset (without a microphone, voice chat is not supported)Specification1. Power interface: Micro 5 Pin (reserved 2.5mm welding port, this model does not support battery power supply) 2. Input voltage: 3.7V-5V 3. Signal-to-noise ratio: 90DB 4. THD+N: -70DB 5. Crosstalk: -86db 6. DNR: 91dB 7. Transmission protocol: A2DP/AVCTP/AVDTP/HFP 8. Transmission distance: about 10 meters (the shorter the distance, the better the stability) 9. Output interface: 3.5mm stereo (reserved soldering points, you can DIY by yourself) 10 Dimensions: 30mm x 30mm

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1. The cooling fan with fan case. 2. Cooling fan fit for Raspberry Pi 3B / 2B / B+. 3. Install it on your mini computer case. 4. It helps to exhaust the hot air from inside the computer case. Improve air flow in your system. Cool down the entire case. Extend your system life span and make the computer work better.

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About the ProductThis 3.5 inch touch screen module is designed especially for Raspberry Pi, using the latest Linux Core system (vision 3.18.9), the latest Raspberry Pi official UI desktop file system and the fastest SPI transmission data, an ideal alternative solution for HDMI monitor and convenient Men-Machine interface for Raspberry Pi, combined with the portable power, DIY anywhere anytime.Features1. LCD Interface: SPI. 2. Touch Screen Controller: XPT2046. 3. Backlight: LED. 4. LCD Type: TFT. 5. Resolution: 320*480 DOTS. 6. Core System: vision 3.18.9. 7. SPI Speed: 32MHz. 8. Color Levels Index: 65536. 9. Power Consumption/Backlight Current: TBD. 10. Supports Raspbian system, enables your system to: - Play videos (supports multi formats, MP4 and so on). - Take photos by touching (up to 17 camera modes). - Support software keyboard (system interaction without keyboard/mouse). - Support driver is installed automatically.

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1. 5 million pixels mini camera. 2. Support 1080P resolution. 3. Static picture resolution is 2592 x 1944. 4. Support 1080P 30, 720P 60 and 640x480P 60 / 90 video recording.

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1. 5 million pixels camera. 2. Support 1080P resolution. 3. Static picture resolution is 2592 x 1944. 4. Support 1080P 30, 720P 60 and 640x480P 60 / 90 video recording. 5. The product is used for Raspberry Pi 3 / 2 / B+.

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1. Type: Drive IC 2. Supply Voltage: 5V 3. Application: Computer 4. Language: English / Russia / Arabic / Persian 5. System supported: WinXP / Win7 / Win8 / Win2003 / Win2008 / WinVista 6. ead and write 8 pin and 16 pins chips those commonly used on computer motherboard, laptop, LCD, routers and home appliances 7. Read and write memory SPD DDR1/DDR2/DDR3 Free demolition chip, especially support 34C02 and other special part numbers 8. Support laptop 8 pin and 14 pin password chip and battery chip (especially 24RF08/6480AR/BR9080/9016 special part numbers 9. Support all series of 24,IIC EEPROM Memory.Besides, it can automatically identify chip model from 24C01 to 24C16,Automatic identify write protection level of the 24 series 7th pin. 10. Support all series of 25 and 26 SPI FLASH Memory,support identify the chips part number automaticly,the capacity is up to 256Mbit 11. Support all series 93 MircroWire Memory,including Japanese special chips 12. It is the only one programmer which have the function of supporting RTD2120 chip's double bank read and write online. Including the BANK0 which the firmware in and BANK1 area ,which menu in. It can read double BANK in only 6 seconds.Support RTD2122's three BANK read and write online. 13. Support reading and writing DDC-EDID data of LCD display and LCD TV online. Very easy to solve EDID data problems 14. Support reading and writing laptop screen EDID data online, very easy to solve the problem of DELL and SONY laptop's choose screen. Our store have screen wires sale 15. Support Leroy, Ding Branch, Rainbow Star, Triumph, Kang Yue and Wang Jie general driver board. Write the driver board MCU by VGA port without taking the components out of the board. The programmer software has a new additional function, it can restore the chips. If the board has been damaged when programming, it can be work normally with this function. Reduce many matters 16. Support to read and write firmware of LCD display and TV motherboard online and out off line. Support TPV, Proview, Samsung, LG, ACER, LENOVO, HP, IBM, BENQ, HKC, Hisense, Skyworth, Konka, Changhong, TCL , Haier, Prima and other major brands, support NOVATEK, MTK, the MST, Genesis, TSUM, SE, FT, REALTEK the Winbond WELTEND, MySoN, China and Asia micro and PIXELWORKS chipset solution, you can use the official ISP software or third-party software, take into account the functions's integrity and the user's ease of use 17. Support Samsung, Philips, AOC, BENQ, NESO use NT68F63/NT68F632/NT68F633 series MCU and WT61P4 models. Can read and write programmer free disassemble. The Samsung LCD has a common problem of missing programmer, you can solve this problem free disassemble with it. It has a special function of reading MCU original programmer online. It can read and save original programmers from the good MCU.Besides, it supports lastest SE1059 seriesa reading and writing. Easy to solve black screen problems 18. Support WINBOND series MCU as programming online, such as W78E65P-40,it can replcace the MCU of M6759,SM5964,SM89516,P89C51RD andTP2804 which are very easy be damaged 19. Support MTK series LCD and DVD program online. Such as MT2389,MT1379,MT8223 and 8226 etc. 20. Support SUNPLUS series DVD program online. Such as 8202D 8202S,8202L,8281 and 8200 etc. 21. Online support in nine series satellite receiver upgrade crack and the brick machine repair; including of Guoxin, Haier, China and Asia, NEC movement program online to read and write and demolition chip reader upgrade feature 22. USB-powered, communication automatically detects the programmer self-test mode, the the original ISP online programming mode pin disconnection detection, target board power detection function, offline reading and writing pin-contact detection and other special features during the burning of various types of failures can be identified and prompt, effective solution to read and write errors 23. Programming the internal high-speed MCU control to upgrade PC client software to complete the programmer's own feature upgrades, more compatible models; using USB interface, power supply and control, eliminating the need for bulky power adapter, easier to use; locking seat of the programming interface, there are anti-static and port the IO protection measures to ensure the reliability of the programmer 24. Recordable models constantly add, if there are special needs, you can contact with the company, part of the chip models can remotely add. 24,25,26,93 series chip and official ISP software, users can also customize the video tutorial to add, convenient to use. Gift 8G procedures and information, and provide long-term technical support, to welcome major brand service station order, such as over one hundred customizable software LOGO and special features

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1. The product is used for Raspberry Pi 3 / 2 / B+. 2. It dissipates heat off your Raspberry Pi in high efficiency, improving its performance.

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1. It can detect the sound intensity of the surrounding environment. Note: This sensor can only identify the presence or absence of sound (according to the principle of vibration) and cannot identify the size of the sound or the sound of a specific frequency2. Adjustable sensitivity3. Working voltage: 3.3V-5V4. Output form: digital switch output (0 and 1 high and low level)5. Equipped with fixing bolt holes for easy installation6. Small board PCB size: 3.2cm x 1.7cm7. Module wiring instructions:-VCC external 3.3V-5V voltage (can be directly connected with 5v single-chip microcomputer and 3.3v single-chip microcomputer)-GND External GND-OUT small board switch output interface (0 and 1)

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Device & System SupportSuitable for Raspberry Pi: 1. Support Raspberry Pi OS, 5-points touch, driver free 2. Support Ubuntu, single point touch, driver free 3. Support Pi 4BSpecifications1. Sensor: OV5647 2. CMOS size: 1/4 inch 3. Pixels: 5MP 4. Aperture: F2.4 5. Focal length: 3.89mm 6. Diagonal FOV: 72.9 degrees 7. Distortion: Less than 1.5% 8. Depth of field: 20cm above 9. Image: 2592 x 1944 still image resolution 10. Video: 1920 x 1080p 30fps, 1280 x 720p 60fps, 640 x 480p 60fps, 640 x 480p 90fpsPackage List1. 7 inch DSI LCD x 1 2. FPC 15 PIN 1.0 pitch 50mm (opposite sides) x 2 3. FPC 15 PIN 1.0 pitch 120mm (opposite sides) x 1 4. 2 PIN wire 10cm x 1 5. Screws pack x 1

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1. Number of component pairs: 1272. Assembly pressure: 85N/cm23. Be sure to apply thermal grease when installing the radiator4. The literal is cold side, and the non-literal is hot side5. Packaging process: standard 704 silicone rubber seal around6. Packaging standard: foam box packaging, storage conditions ambient temperature -10 ~ 40 degrees Celsius7. Working environment: temperature range -55～83 degrees Celsius (excessive ambient temperature will directly affect the cooling efficiency)8. The working state of the cooling plate is that one side is cooling and the other side is heating, and the heating surface must be well dissipated during work. It is strictly forbidden to energize for more than 2 seconds without heat dissipation, so as to avoid overheating and burning.9. Dimensions: 12703: 40x40x4.0mm, 12709: 40x40x3.4mm, 12710: 40x40x3.4mm, 12715: 40x40x3 .3mm10. Other parameters:- 12703: Wire specification: lead length 310+/-5mm, RV standard wire, single head 5mm tin-plated, internal resistance: 4.0~4.3 ohms (ambient temperature 23+/-1 degrees Celsius, 1kHZ Ac test), working current: Imax=12 ( When starting at rated voltage), rated voltage: DC12V (Vmax: 15.5V), cooling power: Qcmax 27W- 12709: Current: less than or equal to 9A, temperature difference: less than or equal to 68 degrees Celsius, voltage: less than or equal to 15.2V, hot end temperature: 82W- 12710: Wire specification: lead length 300+/-5mm, RV standard wire, single head 5mm tin plated, internal resistance: 1.2~1.5 ohms (ambient temperature 23+/-1 degrees Celsius, 1kHZ Ac test), working current: Imax=10A ( 15Vmax voltage start), rated voltage: DC12V (Vmax: 15.5V), cooling power: Qcmax 92W- 12715: Voltage: less than or equal to 15.4V, current: less than or equal to 15A, cold output: 134W

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1. Number of component pairs: 1272. Assembly pressure: 85N/cm23. Be sure to apply thermal grease when installing the radiator4. The literal is cold side, and the non-literal is hot side5. Packaging process: standard 704 silicone rubber seal around6. Packaging standard: foam box packaging, storage conditions ambient temperature -10 ~ 40 degrees Celsius7. Working environment: temperature range -55～83 degrees Celsius (excessive ambient temperature will directly affect the cooling efficiency)8. The working state of the cooling plate is that one side is cooling and the other side is heating, and the heating surface must be well dissipated during work. It is strictly forbidden to energize for more than 2 seconds without heat dissipation, so as to avoid overheating and burning.9. Dimensions: 12703: 40x40x4.0mm, 12709: 40x40x3.4mm, 12710: 40x40x3.4mm, 12715: 40x40x3 .3mm10. Other parameters:- 12703: Wire specification: lead length 310+/-5mm, RV standard wire, single head 5mm tin-plated, internal resistance: 4.0~4.3 ohms (ambient temperature 23+/-1 degrees Celsius, 1kHZ Ac test), working current: Imax=12 ( When starting at rated voltage), rated voltage: DC12V (Vmax: 15.5V), cooling power: Qcmax 27W- 12709: Current: less than or equal to 9A, temperature difference: less than or equal to 68 degrees Celsius, voltage: less than or equal to 15.2V, hot end temperature: 82W- 12710: Wire specification: lead length 300+/-5mm, RV standard wire, single head 5mm tin plated, internal resistance: 1.2~1.5 ohms (ambient temperature 23+/-1 degrees Celsius, 1kHZ Ac test), working current: Imax=10A ( 15Vmax voltage start), rated voltage: DC12V (Vmax: 15.5V), cooling power: Qcmax 92W- 12715: Voltage: less than or equal to 15.4V, current: less than or equal to 15A, cold output: 134W

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1. Number of component pairs: 1272. Assembly pressure: 85N/cm23. Be sure to apply thermal grease when installing the radiator4. The literal is cold side, and the non-literal is hot side5. Packaging process: standard 704 silicone rubber seal around6. Packaging standard: foam box packaging, storage conditions ambient temperature -10 ~ 40 degrees Celsius7. Working environment: temperature range -55～83 degrees Celsius (excessive ambient temperature will directly affect the cooling efficiency)8. The working state of the cooling plate is that one side is cooling and the other side is heating, and the heating surface must be well dissipated during work. It is strictly forbidden to energize for more than 2 seconds without heat dissipation, so as to avoid overheating and burning.9. Dimensions: 12703: 40x40x4.0mm, 12709: 40x40x3.4mm, 12710: 40x40x3.4mm, 12715: 40x40x3 .3mm10. Other parameters:- 12703: Wire specification: lead length 310+/-5mm, RV standard wire, single head 5mm tin-plated, internal resistance: 4.0~4.3 ohms (ambient temperature 23+/-1 degrees Celsius, 1kHZ Ac test), working current: Imax=12 ( When starting at rated voltage), rated voltage: DC12V (Vmax: 15.5V), cooling power: Qcmax 27W- 12709: Current: less than or equal to 9A, temperature difference: less than or equal to 68 degrees Celsius, voltage: less than or equal to 15.2V, hot end temperature: 82W- 12710: Wire specification: lead length 300+/-5mm, RV standard wire, single head 5mm tin plated, internal resistance: 1.2~1.5 ohms (ambient temperature 23+/-1 degrees Celsius, 1kHZ Ac test), working current: Imax=10A ( 15Vmax voltage start), rated voltage: DC12V (Vmax: 15.5V), cooling power: Qcmax 92W- 12715: Voltage: less than or equal to 15.4V, current: less than or equal to 15A, cold output: 134W

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1. Material: aluminum alloy2. Fixed vent design3. Hollow design, fast heat dissipation4. Strong and durable, not easy to rust5. The hole position corresponds to the motherboard interface one by one6. Low density, strong corrosion resistance, high strength7. For Raspberry Pi 3 Model B Pi 2/B +8. Does not affect the WIFI signal, the side slot can be installed GPIO cable9. USB, network port, audio, micro HDMI and power interface access

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1. Material: aluminum alloy2. Fixed vent design3. Hollow design, fast heat dissipation4. Strong and durable, not easy to rust5. The hole position corresponds to the motherboard interface one by one6. Low density, strong corrosion resistance, high strength7. For Raspberry Pi 3 Model B Pi 2/B +8. Does not affect the WIFI signal, the side slot can be installed GPIO cable9. USB, network port, audio, micro HDMI and power interface access

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