Our earlier DHT-and-ESP32 article put temperature and humidity readings on a web page; this project keeps things simpler and standalone, reading the…
A 16x2 character LCD is one of the most common displays in Arduino projects, and it can be wired up two very different ways depending on how many pins…
Measuring voltage with Arduino is straightforward with a simple voltage divider, but measuring current needs a different approach — the ACS712…
A practical DS18B20 temperature logger with correct pull-up wiring, microSD voltage checks, optional RTC timestamps and safer file handling.