We use WhatsApp almost every day so much that it has become an unavoidable part of our routine. From a simple “good morning” ...
The hardware was assembled by connecting the Arduino UNO R4 WiFi, the PZEM 004T, the current transformer, and the OLED ...
It is a running gag around here that whenever a project posts, someone will inevitably point out that it could have been done ...
An LM555 timer paired with an NTC thermistor makes a simple, configurable ON/OFF thermostat for heating or cooling.
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