A Mini weather station based on ESP-12. Include a BME280 or BME680 sensor chip on board, one or more DS18B20 onewire sensors. It's powered by a Lithium cell, can be for short time directly charged over present voltage input. A LDO with very low Iq included. Comes with voltage measurement for the connected battery. Hardware jumper for deep-sleep and a programming connector (charge the battery if +5...
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