PWM Pin of IO expansion board

Value of the first parameter

2

2

3

3

All Pins

board.ALL

Press Ctrl+X, and then press Y to save and exit nano editor.

Input command sudo raspi-config to open the IIC interface.

Input command python servoTest.py to run file servoTest.py.

•

Analog

Sample Code:

# -*- coding:utf-8 -*-

# analogTest.py

import time

from DFRobot_RaspberryPi_Expansion_Board import DFRobot_Expansion_Board_IIC as Board

board = Board(1, 0x10)

# Select i2c bus 1, set address to 0x10

if __name__ == "__main__":

while board.begin() != board.STA_OK:

# Board begin and check the board's status

print("Board begin faild.")

time.sleep(1)

print("Board begin success.")

board.set_adc_enable()

while True:

print("Read part of channels.")

val0 = board.get_adc_value(board.A0) # channel A0 is readed

'''

val1 = board.get_adc_value(board.A1) # channel A1 is readed

val2 = board.get_adc_value(board.A2) # channel A2 is readed

val3 = board.get_adc_value(board.A3) # channel A3 is readed

'''

print("channel:A0, value:%d" %val0)

'''

print("channel:A1, value:%d" %val1)