Our earlier LM35 article covered the sensor's basics with readings printed to the Serial Monitor; this project shows the same temperature reading…
Our earlier ultrasonic sensor article covered the HC-SR04's wiring and distance-calculation math with results printed to the Serial Monitor; this project…
Our earlier articles covered how a matrix keypad works and walked through its Keypad.h reading code; this project puts both to use in a small…
Our earlier DHT-and-ESP32 article put temperature and humidity readings on a web page; this project keeps things simpler and standalone, reading the…