Zicada - DIY Zigbee Multisensor

A quick overview of how I designed and built a smart home sensor for measuring temperature and humidity that doubles as a contact sensor. Project links: https://hackaday.io/project/204509 https://github.com/CoretechR/Zicada Zicada is a DIY Zigbee sensor based on Nordic’s nRF52840 SoC. It combines a temperature and humidity sensor with a hall effect switch, making it suitable for both climate and door/window monitoring. Zicada is optimized for ultra-low power consumption, running at just 6µW in standby. This allows it to operate on a rechargeable AAA battery for 2 years or longer. It is fully compatible with Home Assistant (ZHA) and Zigbee2MQTT. Software used in this video: Fusion360, KiCAD 0:00 Intro 0:22 Electronics and soldering 2:14 CAD and assembly 3:38 Features