An average person might take a water quality reading once or twice a week ... and keeping energy use under control. An ESP32 reads the sensors and sends out the data through WiFi.

The ESP8266 and its heavyweight sibling the ESP32 are fantastic boards to develop ... as well as a BMP280 sensor to read ambient temperature and atmospheric pressure. There’s also an SD card ...

In the past decade, the explosion of DIY electronics environments around items like Arduino circuit boards, the Raspberry Pi microcomputer, and ESP32 microcontrollers have helped make virtually ...