Every analogRead() call in an Arduino sketch leans on a piece of hardware doing real work behind the scenes: an analog-to-digital converter, translating…
Our earlier smart-lock project used a pre-stored card ID to grant access; this project takes the same MFRC522 reader in a different direction — a trash…
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 articles covered how a matrix keypad works and walked through its Keypad.h reading code; this project puts both to use in a small…