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The following short projects show how you could use the PiShield as part of a home automation system. Most of the demos make use of the node-red platform, which allows you to easily extend it to other connected frameworks:
People Counter + Security Camera: In this project, an infra red sensor is used to count the number of people who have gone through a doorway. An optional addition using the Raspberry Pi Camera also triggers photos to be taken corresponding to the detected movement.
Plant Irrigation: By using an I-CubeX switch (relay), a larger water valve can be switched which operates a simple gravity siphon that can be used to water a plant when the humidity level (measured by a Moist sensor) drops beyond a certain point.
MQTT Setup: Many home automation systems make use of MQTT as the messaging protocol. In this short tutorial we look at installing the MQTT server (broker) and then using node-red to publish and subscribe to message streams (channels).
node-red Dashboard: A good application needs a good user interface. In this tutorial we see how easy it is to set up a nice looking dashboard in node-red to display your sensor data. The dashboard also provides buttons, text entry, sliders, etc. and runs equally well displayed on desktop and mobile browsers!
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