This project is mounted behind a solar panel which charges batteries that power the ESP8266 that hosts this project. The esp8266 in combination with a homemade fz0430 (voltage detector) measures the remaining battery and posts it here.

Es un calentador solar de agua echo específicamente con materiales reciclables, en los cuales se utiliza botellas PET de 1.3 y 3 litros, ademas de latas de aluminio de gaseosa o cerveza. He usado un ESP32 con sensores ds18x20, programado en microPython.

This is a Weather Station monitor page

Logging the temperatures of the pool

PV 2 x 275Wp

Měření hodnot teploty, vlhkosti a slunečního svitu ve skleníku