I/O board for use with solid state power relays. Designed for switching high power loads without the need for costly extra hardware such as SSR modules or contactors.
Ideally suited to automation or industrial control applications requiring high-speed switching, or switching of loads not suitable for regular mechanical relays, such as motors, power supplies, or noise sensitive equipment such as amplifiers.
gpio -x mcp23017:100:0x20 read 108
gpio -x mcp23017:100:0x20 mode 108 out
gpio -x mcp23017:100:0x20 write 108 1
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.
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.