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piface-mqtt

This software is an interface between the PiFace-addon-board for RaspberryPi and a MQTT-Broker. It publishes changes of the PiFace-inputs to MQTT. Likewise the PiFace-outputs are controllable via MQTT. In this first version the software connects only to a broker on localhost.

How to use

Input changes are published to topic piface/input/<nr. of input (0-7)>. Payload can be 0 or 1. The payload is 1 when the input is low(button pressed) or 0 if it is open(high). The Software subscribes to piface/output/+. The output channel can be 0-7. If you publish to piface/output/0 with payload 1 output0 on the PiFace will turned on. Payload 0 will turn it off.