Appliance HAT

0x20

I/O board with quick connect power relays. Designed for switching high power loads such as appliances. Ideal for automation or industrial control applications.

Does not require any screw terminals or PCB wire connections. Instead it uses quick connect power relays with integrated spade terminals, meaning we have more space for relays.

Features

  • 6 opto-isolated quick connect power relays
  • Up to 16A @ 250V
  • Based on the MCP23017 16-port GPIO expander
  • Jumper selectable I2C address & GPIO voltage (3.3V / 5V)
  • Can be used with 3.3V or 5V I2C host devices (eg, Arduino)
  • Built-in user programmable ID EEPROM

Details

Appliance HAT

  • Physical pin
  • WiringPi pin
  • Currently ,
Toggle Output All On All Off

WiringPi Guide

Read

gpio -x mcp23017:100:0x20 read 108

Write

gpio -x mcp23017:100:0x20 mode 108 out
gpio -x mcp23017:100:0x20 write 108 1
  • Operating voltage: - 1.8V to 5.5V
  • Maximum current into VDD pin: 125mA
  • Maximum current out of VSS pin: 150mA

Address Selection

Address A2 A1 A0
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27

GPIO Voltage

The 3V3 Jumper is used to drive the GPIO expander voltage to 3V3.

To use with Arduino or any other 5V device the 3V3 jumper must be moved to 5V.

GPIO Voltage

The 5V Jumper is used to drive the GPIO expander voltage to 5V.

Select this jumper to use with Arduino or any other 5V device and use the SDA & SDL breakout pins for I2C communication.