Wireless sensor with eink display

Battery 18650 powered wireless sensor with e-ink display.Easy to integrate to Home Assistant - by WiFi and MQTT or by Bluetooth and BTHome.Long battery life even with WiFi connection (6 months) thanks to TPL5110 low power timer.USB-C charging.All informations including FreeCAD files, BOM and documentations here: https://github.com/Jaroslav-Dvorak/PicoInkYou can contact me here (sorry, everything is in Czech language but I can answer in english:-)): The promo-video: Assembly video: