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.
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