Zigbee is a protocol that has been around for quite a long time, and you can purchase many cheap smart sensors to incorporate ...

T he ESP32 is a fantastic little microcontroller with a world of possibilities. Its specifications may appear modest, but its capabilities enable it to power all kinds of devices.

All data is saved to an SD card, with an ESP32 to act as a brain and make downloading the info more accessible via WiFi .

All of the data is sucked up by a series of solar powered ESP32 access points, and ultimately ends up on a Raspberry Pi by way of MQTT. Here, custom Python software generates a heatmap that ...