Building battery-powered Zigbee buttons with the nRF52840

Glen Akins wanted to remotely control some outdoor lighting without using a phone or going back in the house. He installed a set of landscape lights then built a set of outdoor, waterproof Zigbee buttons to control them using an nRF52840 module, Zigbee2MQTT, Python, and TinyTuya.

I had narrowed my selection of microcontrollers down to an nRF52840 Zigbee controller from Nordic Semiconductor. A lot of this was based on already having several nRF52840 dev kits on hand from some prior Bluetooth work.

While trying to find this microcontroller in an easy-to-solder and pre-certified RF module, I stumbled upon the Thread Sensor Tag. The Thread Sensor Tag is also on hackaday.io.

The Thread Sensor Tag uses an nRF52840 RF module made by Minew Semiconductor.

See the video below and details in this post. The design files are on GitHub.


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