• Thanks Hackolite for putting my brain on this =)
• https://www.rci.fm/infos/risques-naturels/une-partie-de-la-population-evacuee-terre-de-bas-en-raison-des-sargasses
• ESP32, uFL, uSMA, VDD controled via pins, …
• https://lastminuteengineers.com/esp32-sleep-modes-power-consumption/
• air quality ?

Boards: * https://www.sparkfun.com/products/retired/14785 * https://pycom.io/product/lopy4/ * http://wiki.seeedstudio.com/Grove-Gas_Sensor-MQ5/

Sensor * DS : https://www.parallax.com/sites/default/files/downloads/605-00009-MQ-5-Datasheet.pdf * https://www.waveshare.com/mq-5-gas-sensor.htm * BME680 https://www.hackster.io/xxlukas84/bme680-gy-mcu680v1-indoor-air-quality-meter-901d02

Sleep: * https://www.hackster.io/Tiobel/esp8266-solar-weather-station-1ea3ec * https://openhomeautomation.net/esp8266-battery

AA rechargeable ? * https://hackaday.com/2017/12/03/minimizing-esp8266-battery-drain/

Battery sensing: https://github.com/rlogiacco/BatterySense + a p-channel MOSFET Q1, a PNP transistor Q2