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. 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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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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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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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. 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. 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 (uses 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. Package includes: RFID-RC522 module X1, standard S50 blank card X1, S50 special-shaped card (as shown in the shape of the key ring); a straight row and a bent row of pins;2. Working current: 13-26mA / DC 3.3V3. Idle current: 10-13mA / DC 3.3V4. Sleep current: <80uA5. Peak current: <30mA6. Working frequency: 13.56MHz7. Supported card types: Mifare1 S50, mifare1 S70, mifare UltraLight, mifare Pro, mifare Desfire8. Product physical characteristics: Size: 40mm × 60mm9. Ambient working temperature: -20-80 degrees Celsius10. Environmental storage temperature: -40-85 degrees Celsius11. Environmental relative humidity: Relative humidity 5% -95%12. Module interface SPI parameters: Data transmission rate: maximum 10Mbit / s13. This module can be directly loaded into various card reader molds. The module uses a voltage of 3.3V. It can be directly connected to any CPU motherboard of the user through a few lines of SPI interface, which can ensure the stable and reliable operation of the module and the distance of card reading.

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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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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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LC 5V WiFi relay module carried a ESP8266 WiFi module and microcontroller.It will send the serial port instructions to the cell phone APP and Implementation within the local area network (LAN) for wireless control relay.Function and characteristics:1. Onboard ESP8266 WIFI module, AP mode 5 client can be connected at the same time;2. Module has two work modes: Cell phones, carry on the WiFi module; Mobile phone and WiFI module3. Carrying on the same router, by mobile phone APP to control relayTransmission distance:1. The open environment, the mobile phone when carrying on the WIFI module maximum transmission distance of 400 m2. When the WiFI module and cell phone carrying on the router at the same time the signal transmission distance in accordance with the router On the weak3. Onboard 5V, 10A / 250V AC 10A / 30V DC relay, absorb 100000 times continuously4. Module with diode effusion protection, short response time5. Module baud rate: 9600,8,1,0,0.The board function description:1. Size: 45*28mm2. IN +, IN-: 5V power input3. TX, RX and GND: a serial port debug pinsIntroduction:Onboard the ESP8266 WIFI module has three work modes: STA (client), AP (hot), the STA + Ap( hot +client), according to the workings of a module to the corresponding choice of WIFI module working mode.Module need before use serial debugging software and USB to TTL module send serial command was carried out on the WIFI module configuration (don't power outages after configuration is complete, as some of the parameters of WIFI module cannot be saved when the power is cut off), mobile phone and WIFI module after establishing a network connection can use the phone APP control relay.When cell phone equipped with WiFi module sends commands in the following order:(The default baud rate 115200)1. AT+CWMODE=2, namely AP mode is selected;2. AT+RST, reset;3. AT+CIPMUX=1, open multiple connections;4. AT+CIPSERVER=1,8080, configure the TCP server, set the port;5. AT+CIOBAUD=9600 set the baud rate to 9600. (working in relays to control the baud rate 9600)6. AT+CIFSR to view the AP mode IP address, such as: the APIP, "192.168.4.1";7. Cell phone WIFI signal connection name starts with AI-THINKER or ESP8266;8. In the "TCP connection" address and port into the APP, such as 192.168.4.1 and 8080;9. Click on the grey box relays can be controlled.10. Document: Click here!!Applications:1. Home Automation2. Industrial IOT Applications3. Lighting ControlsPackage included:1 x ESP8266 5V WiFi Relay 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 won't 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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This 5V USB output converter module is based on the KIS3R33S module specific design, the input voltage 7V to 24V, output voltage 5.01V 2.5A peak output current of 4A continuous output. Able to provide 3A continuous load current. The majority of players professional testing, with high efficiency, ultra-low loss characteristics, beyond lm2596 power module. This module has a USB recognition. This module uses the original Sanyo low ESR filter capacitor voltage as low as possible so that the ripple 30mV, fully capable and linear power comparable. IN-(input negative), IN + (positive input), OUT-(negative output), OUT + (positive output) must be connected to the right, otherwise may cause damage to the module. The USB output converter module has short circuit protection, 5A current automatic protection. Specification 1. Modules nature: Non-isolated buck 2. Rectification: Non-synchronous rectification 3. Input voltage: DC 7V - 24V 4. Output voltage: DC 5V 5. Output current: 4A(short time) 6. Conversion efficiency: 96% (MAX) 7. Switching frequency: 340KHz 8. Output ripple: 30mV(max) 9. Load regulation: +/- 0.5% 10. Voltage regulation: +/- 2.5% 11. Operating temperature: -40 degree C to +85 degree C 12. With overcurrent protection 13. Size: 60 x 21 x 14mm Notice 1. DIY mobile power supply, to achieve 5V output for charging Phone, MP3, MP4, PSP etc. 2. Please connect right as the printed: IN-, IN+, OUT-, OUT+, or the module will be burned 3. May not charge for the IPAD Package included 1 x KIS3R33S USB output converter module

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1. Function of this aluminum heat sink is to cool down the board and make it operate safely2. The aluminum heat sink can reduce the risk of hardware failure because of overheating3. Will cool more LEDs if work with a fan3. Material: Aluminum4. Color: Black5. Weight: 15g6. Size: 40 x 40 x 11mm7. Application: LED, Power IC, Memory, Transistor etc.3. Package included:1 x Aluminum heat sink 40 x 40 x 11mm

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1. These heatsinks measure just 45mm square and 10mm high.2. Used for IC Two-electrode tube Dynatron, electronic ,LED, IC, CPU, GPU, RAM, CHIP computer component heat dissipation, or anywhere you need a small efficient heatsink. 3. Brand: Landa tianrui4. Model: LDTR-WG0261/B5. Material: Aluminum6. Dimensions: 4.5 cm*4.5cm*1cm7. Weight: 23g8. Package included: 1 x Aluminum Heat Sink Heat Sink Cooling

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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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Technical Parameters1. Model: LDTR-WG02672. Potentiometer: Resistance B100K; opening 8mm3. Input voltage: DC10-60V4. Output voltage: 0-100% of input voltage5. Control power: 12V*10A=120W, 24V*10A=240W,...6. Rated current: 10A7. Maximum current: 20A8. Speed range: 5%-100%9. Size: 88mm*59mm*35mm10. PWM frequency: 25kHz11. Package included: 1 x DC 12V 24V 36V 48V PWM DC Motor Speed ControllerPrecautions and instructions for use1. DC motor speed controller input is DC, not directly connected to AC, otherwise it will burn out2. The positive and negative DC power supply can not be reversed, otherwise the governor will be damaged.3. The motor can be divided into positive and negative. When the direction of movement is inconsistent with the expectation,4. the direction can be changed by adjusting the line sequence.5. The potentiometer knob can change the duty cycle of the speed control output, thus changing the motor speed.

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1. Humidity range: 0-1002. Material physical properties: semiconductor3. Output signal: digital4. Working voltage: 3.3V-5V5. Size: 3cm * 1.6cm6. Features: LM393 chip, stable operation, fixed bolt holes for easy installation, dual output mode of the module, simple digital output, more accurate analog output, and adjustable sensitivity

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Features1. Bluetooth+AUX audio input, dual-channel stereo output, just a little sound distortion. 2. You can directly adjust the treble and bass. 3. AMP module has AM interference suppression function, shielding cover power inductor, low noise front stage operational amplifier, you will enjoy a more excellent sound quality experience. 4. Audio amplifier board with over-voltage protection, under-voltage protection, over-heat protection, short-circuit protection. 5. The illustration of each interface is printed on the protective plate, making it easy to install and use even without instructions. Use occasion: This 50W+50W dual-channel Bluetooth audio amplifier board is widely use indoor and outdoor, such as family, party, bar, band, concert, carnival etc.Specification1. Material: ABS plastic 2. Bluetooth version: 5.0 3. Input Mode: Bluetooth / AUX 4. Power Output: 50W x 2 5. Channel: 2 6. Chip: TPA3116D2 (AM interference suppression function) 7. Bluetooth transmission distance: 10m (without occlusion) 8. Adapter speaker: 15-100W, 4 ohm s- 8 ohms 9. Signal to noise ratio: Greater than 90dB 10. Adapted power supply: DC 9-24V/ above 2A 11. Output Power: - 15W x 2 at 12V, 8 ohms - 20W x 2 at 19V, 8 ohms - 30W x 2 at 12V, 4 ohms - 30W x 2 at 24V, 8 ohms - 40W x 2 at 19V, 4 ohms - 50W x 2 at 24V, 4 ohms 12. Size: 110 x 70 x 21mm

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Technical specifications:1. Support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/482. 24-bit DAC output, dynamic range support: 90dB, signal-to-noise ratio support: 85dB3. Fully support FAT16, FAT32 file system, support 32G TF card, support 32G U disk, 64M byte NORFLASH4. A variety of control modes are available. IO control mode, serial port mode, AD button control mode5. The broadcast language insertion function, you can pause the background music that is playing. After the ad is played, return to the background sound to continue playing6. The audio data is sorted by folder, supporting 100 folders at most, and 255 tracks can be assigned to every folder7. 30 levels of volume adjustable, 6 levels of EQ adjustableApplication range:1. Car navigation voice broadcast2. Highway transportation inspection, toll station voice prompt3. Voice prompts for safety inspections at railway stations and bus stations4. Voice prompts for power, communications, and financial business offices5. Voice prompts for vehicle entry and exit channel verification6. Voice prompts for border inspection channels7. Multi-channel voice alarm or equipment operation guidance voice8. Voice notice for safe driving of electric sightseeing cars9. Automatic alarm for mechanical and electrical equipment failure10. Fire alarm prompt11. Automatic broadcast equipment, regular broadcastProduct description:1. Can be directly connected to speakers2. The module can be used alone with the power supply battery, speakers, and buttons, or can be controlled through the serial port, as a module of UNO or any single-chip microcomputer with a serial port3. The module itself perfectly integrates the hard decoding of MP3, WAV and WMA. At the same time, the software supports TF card driver, supports FAT16, FAT32 file system4. Through simple serial port commands, you can complete the functions of playing the specified music and how to play the music. There is no need for cumbersome underlying operations, easy to use, stable and reliable

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1. Voltage: DC 2.5-5.5V. 2. Output Power: 3W + 3W (at 4 ohm). 3. Noise ratio: 90dB. 4. Efficiency: more than 90 percent. 5. 2 channels 3W amplifier with PAM8403. 6. Output is CMOS BTL driver. 7. Cannot change any component parameters to protect IC. 8. The board can also be powered by 5V USB power supply or 4 x 1.5V battery. 9. It is perfect for MP3, MP4 and notebook.

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1. The USB to RS232 converter cable provides simple and easy way to connect universal serial bus (USB) and serial port interface. 2. Via this adapter cable, you can utilize the peripheral with serial port interface in an easy-use environment such as plug the play hot swap function. 3. This adapter is designed for ideal connections to cellular phone, digital camera, modems or ISDN terminal adapter with max. 1 Mbps data transfer rate. 4. Application: Convert USB port to RS232 serial port.

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1. Double decks for 4pcs AA batteries. 2. Easy to connect to other devices with 18cm cable. 3. Able to make 6V battery pack from alkaline cells. 4. Perfect external power source for Arduino system.

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1. Resistance range: 100 ohm - 10K ohm. 2. It is widely used to adjust timer, speed, temperature. 3. For MCU experiment.

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1. Low standby current.through the I2C bus serial input / output. 2. PCF8591 by 3 hardware address pins addressing. Sampling rate PCF8591 I2C bus rate decided. 3. 4 analog inputs programmable as single-ended or differential inputs.Automatic incremental channel selection 4. PCF8591 analog voltage range from VSS to VDD.PCF8591 built-in track and hold circuit. 5. 8-bit successive approximation A / D converter. through an analog output DAC gain. module chip using PCF8951 . 6. Working Voltage : 2.5-6V

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1. Works with official Arduino boards 2. This is an I2C controlled PWM driver board with a built-in clock 3. You can use 3.3V MCU to control and drive the output up to 6V 4. 6 address select pins allow you to connect 62 driver boards to one I2C bus, total 992 channels of PWM output 5. About 1.6KHz frequency modulation PWM output 6. PCA9685 chip is at the center of the board 7. With power input terminal 8. With green power indicator light 9. Convenient to insert total 16 servos at the same time 10. With reverse polarity protection for input 11. Cascade design 12. Put a bulky capacitor on the V+ line 13. Put 220 ohm resistance components onto all PWM output lines

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1. Chip: MAX3232CSE 2. Voltage range: 3 v to 5 v 3. The highest baud rate : not recommended More than 120 KBPS 4. A converter board for electrical levels

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1. Onboard complex frequency decoder chip MT8870 2. Onboard voice input interface 3. Onboard five LED indicators for easy viewing output state 4. Basic pins of the chip have been drawn 5. For Arduino, Raspberry Pi, ARM MCU and more

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1. Material: PCB 2. Working voltage: 3.3 or 5V 3. On-board AMS1117 - 3.3 chip 4. Wireless module operating voltage is 3.3V, while the ordinary 51 single-chip is 5V 5. Connect wireless module with 51 single-chip system board 6. It is for NRF24L01 + wireless module 7. This is a simple socket board which is for NRF24L01 wireless module

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1. Used as a square wave signal generator, which produces square wave signals for experimental development. 2. Used to generate square wave signals that can drive the stepper motor . 3. The adjustable pulse is generated for use of MCU. 4. Generate adjustable pulses to control the related circuits. 5. NOTE :When using a jumper cap to change the frequency, please cut off the power first, wait for the jump cap and then reconnect.

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Main Features: 1. The board uses a high-performance digital amplifier TDA8932 chip 2. Small size, high efficiency, high power, good sound quality, without additional installation of radiator 3. Suitable for the transformation of active speaker, product development, and other audio application Specification: 1. Material: PCB 2. Chipset: TDA8932 3. Operating voltage: single DC 10 - 30V ( 24V recommended voltage ) 4. Current: above 2A 5. Power output: 35W 6. Speaker impedance: 4 - 8 ohm ( 8 ohm is the best ) 7. Circuit configuration: mono BTL output

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This is 28YBJ-48 DC 5V 4 phase 5 wire stepper motor with ULN2003 driver board, 5-wire phase can drive ordinary uln2003 chip can also be connected as phase 2 may be supporting the development board, direct plug, easy to use stepper motor used in the development boardMotor1. Diameter: 28mm2. Voltage: 5V3. Step angle: 5.625 x 1/644. Reduction ratio: 1/64ULN2003 driver board1. A, B, C, D LED indication Four-phase stepper motor work status2. Size: 31x35mmPackage included1. 1 x ULN2003 driver board2. 1 x 28BYJ-48 stepper motor

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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. 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. 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. 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. 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. 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. 15A current overload protection switch, real-time monitoring of electricity safety 2. Low-voltage start-up is more practical, with a trigger module to achieve 10V start-up, and no trigger device 60V start-up voltage is as low as possible 3. Input voltage: AC 220V 4. Output voltage: 0-220V adjustable (Voltmeter does not work when the output voltage is lower than 5V) 5. Limit power: 4000W (suitable for 1000W-2000W motor load) 6. Voltage adjustment range: 0-220V steplessly adjustable (under load conditions), step down to 0V, step up from 10V 7. Rated current: 9A 8. Limit current: 18A

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1. 5V relay module2. It can be used as a single-chip development board module, and can be used as a home appliance control3. 5V-12V TTL control signal4. Control DC or AC signal, can control 220V AC load5. There is a normally open and a normally closed contact6. Has a power indicator7. There is a control indicator light, which is bright when closing, but not bright when disconnecting8. Transistor drive increases the relay coil, and the control pin is high impedance9. The control pin has a pull-down circuit to prevent the false action of the floating relay

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1. Product weight: 230g 2. Product material: ABS / metal material 3. Applicable models (scene): GM,SUV off-road pickup truck 4. UPC: 707427709829 5. Includes accessories 1 x relay bracket, 41 pins

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Type:Voltage Regulator1. Power supply current: 12A 2. Power supply voltage: 40v3. Power: Standard4. Number of pins: Standard5. Use: Instrument6. Package: DC-DC step-down adjustable constant voltage constant current 10A7. Application area: Household appliances8. Packing: boxed9. Weight: 67.2g10. Size: 47 x 65mm

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