4x Powerful AC240V 10A / DC24V 10A relays can switch devices on or off. These relays has 100.000 to 10.000.000 on - off life, according to the load.
NO and NC Terminals
Normally open and normally closed pins of the relays are both connected to the terminals.
Raspberry Pi's I2C, UART, SPI, 2x CS, GPIO 5, 6, 12, 13, 16, 26 pins and power outputs are shared to header terminal.
Photocouplers between Raspberry Pi and relay control circuit protect your system from ripples.
You can use internal or external power for relays. Raspberry Pi easily supplies required power for relays, but you may wish to use external power for industrial applications.
There are cutouts on the PCB, isolating potential voltage spikes from the control circuit.
Small schematics behind the board explains how the system works.
We care our environment. Turta boards are PB-free and RoHS compliant.