Waveshare Compute Module 3 Expansion Board Compatible for Arduino Compute Module IO Board V3

Feature:

Compatible with Compute Module IO Board V3 provided by the Raspberry Pi Foundation

With Raspberry Pi GPIO interface, convenient access to various Raspberry Pi expansion boards

With Arduino interface, easy to access various Arduino expansion boards

With 1-WIRE interface, easy access to various single bus devices (such as DS18B20)

Onboard 4 buttons, 4 LEDs and 1 buzzer for easy I/O testing

Onboard USB HUB, easy to connect more USB devices

Onboard infrared receiver, convenient to use infrared remote control function

Onboard USB TO UART, convenient for serial port debugging

Onboard sensor interface for easy access to various sensors

Onboard ADC, 10-bit, 38KSPS, 11 channels (6 channels for Arduino interface, 5 channels for sensor connection)

Onboard DAC, 2 channels, 16-bit precision

Onboard RTC, this is one of the commonly used functions

Package includes:

1 x?Compute Module 3 Expansion Board

1. Compute Module interface: can be connected to Compute Module 3/3 Lite/3+/3+ Lite

2. Compute Module GPIO interface: leads all interfaces of Compute Module

3. GPIO interface of Raspberry Pi: Can be connected to various Raspberry Pi HAT

4. CSI camera interface: can access Raspberry Pi Camera

5. DSI display interface: Raspberry Pi LCD can be connected

6. HDMI interface: can be connected to various HDMI devices

7. USB interface: Various USB devices can be connected

8. USB SLAVE interface: Compute Module 3+ can burn system image through this interface

9. USB TO UART interface: convenient for serial port debugging

10. Arduino interface: easy access to various Arduino shields (Shield)

11. AD/DA input and output interface (terminals): easy to use in various occasions

12. 1-WIRE interface: can be connected to single bus devices such as DS18B20

13. Sensor interface: easy access to various sensors

14. Power interface: generally access 5V 2.5A power supply

15. FE1.1S: USB HUB chip

16. 12MHz crystal

17. CP2102: USB to serial chip

18. Micro SD card slot: Used to connect a Micro SD card with system to start Compute Module 3 Lite/3+ Lite

19. TLC1543: AD conversion chip

20. DAC8552: 16-bit high-precision DAC, 2 channel output

21. DS3231: High-precision RTC chip, I2C interface

22. RTC real-time clock powered battery holder: CR1220 button battery can be connected

23. Power regulator chip: from top to bottom, respectively 3.3V / 2.5V / 1.8V regulator chip

24. LFN0038K infrared receiver

25. Buzzer

26. Power LED

27. ACT LED: indicates the running status of the Micro SD card

28. User LED: It is convenient for I/O output test or display program running status

29. User button: It is convenient for I/O input test or control program running status

30. BOOT select jumper

? -EN: PC can read and write SD card or eMMC through USB SLAVE

? -DIS: The calculation module starts from the SD card or eMMC

31. VGx power selection jumper: select I/O level

32. HUB enable jumper: HUB enable and USB SLAVE power supply selection

33. ADC/DAC configuration jumper: configure ADC/DAC supply voltage and reference voltage

34. Various peripheral configuration jumpers: configure UART, user buttons, user LED, 1-WIRE interface, infrared receiver head and buzzer control pins

35. Arduino AD selection jumper

? -Short circuit 1 and 2: Arduino interface A0-A5 as digital control pins

? -Short circuit 2 and 3: Arduino interface A0-A5 as AD input pin