Tutorial

Connection

Plug the IO expansion board into Raspberry Pi.

Download the Driver library

To use the analog and PWM ports in the board, download the driver library first.

Press Ctrl+Alt+T to open the terminal, input the following command and hit Enter.

git clone https://github.com/DFRobot/DFRobot_RaspberryPi_Expansion_Board.git

Download the library and unzip the file. Input the following command into the terminal:

tar -xvzf DFRobot_RaspberryPi_Expansion_Board

Enter the directory of the uncompressed files:

cd DFRobot_RaspberryPi_Expansion_Board/raspberry/

Extended Ports Usage

•

PWM: connect a servo to PWM P0. Create a file via the command of nano:

sudo nano servoTest.py

Add the following content:

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

# servoTest.py

import time

from DFRobot_RaspberryPi_Expansion_Board import DFRobot_Expansion_Board_IIC as Board

from DFRobot_RaspberryPi_Expansion_Board import DFRobot_Expansion_Board_Servo as

Servo

board = Board(1, 0x10)

# Select i2c bus 1, set address to 0x10