This Particle Photon relay shield controls 32 relays through the I2C port using a pair of MCP23017 port expanders, freeing your Particle Photon* port pins for other functions.
Double-row headers provide wire access to all Particle Photon port pins for easy integration of other circuits or other expansion shields.
Equipped with 32 relay status LEDs, an I2C expansion port, and a +5V 500ma switcher regulator, this expansion shield provides the ultimate solution for demanding cloud control applications.
Easily expandable via the I2C expansion port to control more relays and to read sensors, or any other I2C device we design in the future.
Operates on +12VDC using a 2.1mm barrel connector (center positive) or 2-wire terminal block.
*Particle Photon not included.