Battery powered thermometer
My idea is to build few thermometers powered by battery to check temperature's rooms in my house. Theses thermometers will report temperature regularly to my server and I will display datas in a graphic web page. I wanted : to get temperatures every half hour (or more if i can) battery life is at least 6 months (or more if i can) to test esp8266 components For my tests, I bought : 18650 battery 4200 mAh Esp-01 DHT22 module for Esp-01 First idea My first idea was to use Esp-01 because it is very small, so i bought a DHT22 module.And just plug Esp-01 on DHT22 module and power it and it is finish ! ESP-01 DHT22 Temperature & humidity sensor for esp01 And I upload this sketch in the esp01 Code formatting with http://hilite.me/ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 ...