Pinout guide & interactive web GUI for MCP23017 and MCP23008 based Raspberry Pi expansion boards. Select a pin from the board to get started.
You can now add your own boards! Check-out our guide on GitHub.
Our easy installer takes care of the setup process automatically.
sudo wget https://git.plasmadan.com/install.sh sudo sh install.sh
This script will automatically enable I2C, install the required packages and setup the Web GUI.
Alternatively, you can install manually. See our setup guide.
gpio -x mcp23017:100:0x20 read 108
gpio -x mcp23017:100:0x20 mode 108 out
gpio -x mcp23017:100:0x20 write 108 1