edalquist/little-free-library-monitor

Little Free Library Monitor

Using a Particle Photon to monitor the use of our little free library. A magnetic contact sensor on the door triggers the Photon to send updated via MQTT to a Home Assistant service. Photos of Setup

Configure and Build

Submodule Libs

The libs are imported via git submodules, after checking populate them via:

git submodule init
git submodule update

Configuration

Copy credentials.h.SAMPLE to credentials.h and update the constants for your environment. Initial flash and testing should set MQTT_TESTING to true to avoid polluting Home Assistant with incorrect sensors.

Building

Use the Particle CLI particle compile photon or Particle Workbench.

Bill of Materials

• Particle Photon
• SparkFun Photon Battery Shield
• 3Ah LiPo Battery
• Magnetic Reed Switch
• 10 Watt, 6 Volt Solar Panel
• Project Box
• Breadboard