PES-2601, 4-Port Relay Output board, is one of smart expansion boards for PHPoC Shields for Arduino. You can remotely turned on / off the relays with this board via the Arduino sketch.

※ Caution : Both a PHPoC shield with R2 or later version and an Arduino board are required to use this board!

What is the Smart Expansion Board for PHPoC shield?

A smart expansion board for PHPoC shield has own devices and firmware. This board communicate with a PHPoC shield in a master-slave protocol through the designated port. Two or more smart expansion boards can be connected to one PHPoC shield and each of them required to be setting a slave id.