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Compute Module IO Board Plus User Manual

Version：V1.0，Date：20171101

Compute Module IO Board Plus

User Manual

OVERVIEWS

 This is an Expansion board of Compute Module 3 and Compute Module 3 Lite. It is

compatible with Compute Module IO Board V3 from Raspberry Pi Foundation, along with

various common use components.

FEATURES

 Compatible with the Compute Module IO Board V3 from the Raspberry Pi Foundation

 Raspberry Pi GPIO header, for connecting sorts of Raspberry Pi HATs

 Arduino connectivity, also supports Arduino shields

 1-WIRE interface, for connecting single-bus devices like DS18B20

 4x keys, 4x LEDs, 1x Buzzer, for I/O testing

 Onboard USB HUB, allows connecting more USB devices

 IR receiver, IR remote control is available

 Onboard USB TO UART, for serial debugging

 Sensor interface

 10-bit ADC, 38KSPS, 11-ch (6-ch for Arduino interface, 5-ch for sensors)

 16-bit DAC, 2-ch

 Onboard RTC, one of the most common and useful functions

WHAT’S ONBOARD

Summary of content (17 pages)

PAGE 1
Compute Module IO Board Plus User Manual Compute Module IO Board Plus User Manual OVERVIEW S  This is an Expansion board of Compute Module 3 and Compute Module 3 Lite. It is compatible with Compute Module IO Board V3 from Raspberry Pi Foundation, along with various common use components.
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Compute Module IO Board Plus User Manual 1. 2. Compute Module interface: for burn system image in to Compute Compute Module 3 Lite Module 3 Compute Module GPIO header: Raspberry Pi GPIO header: for connecting Raspberry Pi HATs 4. USB SLAVE interface: allows you to connecting Compute Module 3 OR breakout all the Compute Module pins 3. 8. CSI interface: camera ports, for 9. USB TO UART interface: for serial debugging 10. Arduino header: for connecting Arduino shields 11.
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Compute Module IO Board Plus User Manual 16. 12MHz crystal 30. BOOT selection 17. CP2102: USB TO UART converter 31. EN: enable the PC to access SD card/eMMC through USB SLAVE 18. Micro SD card slot: insert a Micro SD card with pre-burnt system, to start up Compute Module 3 Lite 19. TLC1543: AD converter 32. DIS: the Compute Module will boot from SD card/eMMC 33. VGx power selection: config the I/O level 20. DAC8552: 16-bit DAC, 2-ch 34. USB HUB enable jumper: HUB 21.
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Compute Module IO Board Plus User Manual CONTENTS OverViews ................................................................................................................................. 1 Features ............................................................................................................................. 1 What’s OnBoard ................................................................................................................. 1 HOW TO USE.........................................
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Compute Module IO Board Plus User Manual python code ............................................................................................................... 12 Expected result ......................................................................................................... 12 RTC DS3231 .................................................................................................................... 12 BCM2835 code ..........................................................................
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Compute Module IO Board Plus User Manual BCM2835 code ......................................................................................................... 15 WiringPi code ............................................................................................................ 16 Python code .............................................................................................................. 16 Expected result ................................................................................
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Compute Module IO Board Plus User Manual HOW TO USE INSTALLATION CM3 1. Pull the jumpers of USB SLAVE 1/2/3/4 SELECTION (you need to pull two jumpers here), set the BOOT ENABLE USB SLAVE jumpers to EN position. 2. Install USB driver. Run the software rpiboot_set to install the drivers and boot tool. 3. Plug the USB SLAVE port of IO Board Plus into your host PC USB. (don’t need to connect power adapter to the IO Board Plus ) 4. Run the rpiboot.exe tool.
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Compute Module IO Board Plus User Manual Note: Before using, please check that whether the BOOT ENABLE USB SLAVE jumper is set onto the DIS option. CONNECTING THE OFFIC AIL 7INCH DISPLAY 1. You need an adapter plate and a 22PIN FFC to connect the display to DISP1 interface of IO Board Plus 2. Connect the 5V and GND pin of display to 5V and GND pin of IO Board Plus with wires. 3. Connect these pins together with wires: GPIO0<->CD1_SDA GPIO1<->CD1_SCL 4. Connect the power adapter 5.
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Compute Module IO Board Plus User Manual 3. Connect to power 4. If you want to connect more than one camera, you can connect another to CAM0 interface. 5. Use the CAM0 interface, you need to connect these pins together: GPIO28<->CD0_SDA GPIO29<->CD0_SCL GPIO30<->CAM0_IO1 GPIO31<->CAM0_IO0 6. Execute these commands to use the camera: raspivid -t 0 -cs 0 raspivid -t 0 -cs 1 Note: 1. -cs: Used to choose the camera 0 or 1. Parameter 0 means CAM1, and 1 means CAM0 2.
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Compute Module IO Board Plus User Manual EXAMPLES While test the examples, you had better connect a display and keyboard to the IO Board Plus. If you use original Raspbian, you have to install necessary libraries before first. For more information about how to install libraries, please refer to Libraries Installation for RPi. BUZZER PYHTON CODE  Execute command to enter the folder of program: cd /home/pi/CM3/Buzzer_PWM/python/  Execute command to run the program: sudo ./buzzer.
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Compute Module IO Board Plus User Manual  Execute command to enter the folder of program: cd /home/pi/CM3/Buzzer_PWM/wiringPi/  Execute command to run the program: sudo ./buzzer EXPECTED RESULT The buzzer will sound, and the sound is changing from low to high, and turn to low again. Note: The buzzer will sound even though not be used because of noise. In this case, you can pull the buzzer jumper manually.
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Compute Module IO Board Plus User Manual  Execute command to enter the folder of program cd /home/pi/CM3/DS18B20/fs/  Execute command to run the program sudo ./ds18b20 PYTHON CODE  Execute command to enter the folder of program cd /home/pi/CM3/DS18B20/python/  Execute command to run the program sudo ./ds18b20.py EXPECTED RESULT The terminal will output the temperature value measured by DS18B20.
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Compute Module IO Board Plus User Manual  Execute command to enter the folder of program cd /home/pi/CM3/DS3231/python/  Execute command to run the program sudo ./ds3231.py EXPECTED RESULT The terminal will output the information of date. IRM You need an infrared remote controller. Please take the interleaving paper down before using. BCM2835 CODE  Execute command to enter the folder of program cd /home/pi/CM3/IRM/bcm2835/  Execute command to run the program sudo .
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Compute Module IO Board Plus User Manual EXPECTED RESULT Press the buttons on Infrared Remote Controller, the terminal will output the corresponding value. KEY BCM2835 CODE  Execute command to enter the folder of program cd /home/pi/CM3/KEY/bcm2835/  Execute command to run the program sudo ./key W IRINGPI CODE  Execute command to enter the folder of program cd /home/pi/CM3/KEY/wiringPi/  Execute command to run the program sudo .
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Compute Module IO Board Plus User Manual BCM2835 CODE  Execute command to enter the folder of program cd /home/pi/CM3/LED/bcm2835/  Execute command to run the program sudo ./led W IRINGPI CODE  Execute command to enter the folder of program cd /home/pi/CM3/LED/wiringPi/  Execute command to run the program sudo ./led PYTHON CODE  Execute command to enter the folder of program cd /home/pi/CM3/LED/python/  Execute command to run the program sudo ./led.
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Compute Module IO Board Plus User Manual W IRINGPI CODE  Execute command to enter the folder of program cd /home/pi/CM3/TLC1543/wiringPi/  Execute command to run the program sudo ./tlc1543 PYTHON CODE  Execute command to enter the folder of program cd /home/pi/CM3/TLC1543/python/  Execute command to run the program sudo ./tlc1543.py EXPECTED RESULT AD information are outputted on terminal. UART Connect the USB TO UART interface of IO Board Plus to PC with USB cable.
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Compute Module IO Board Plus User Manual PYTHON CODE  Execute command to enter the folder of program cd /home/pi/CM3/UART/python/  Execute command to run the program sudo ./uart.py EXPECTED RESULT Every time run the program, on the Putty, you can see that Hello World!!! is printed. 17 Version：V1.