Learning Morse Code is no longer a requirement for HAMs in many jurisdictions, but it’s still a nice skill to have. [I_void(warranties)] wanted to learn, but couldn’t find a trainer ...

The ESP32 that I went for is specifically the ESP32-DevKitC, which is easy to find, cheap, and compatible with most things ...

Arduino nano – The main microcontroller board. LCD Display (16x2, I2C) – Used to display the counter value. I2C Module (PCF8574) – For interfacing the LCD with Arduino. Push Buttons (3) – For Reset, ...

Running out of GPIO pins? Learn how to connect multiple buttons to just one Arduino pin using clever wiring and resistor techniques. Perfect for compact projects, keyboards, or when using small ...

APC issue 542 (February) is now available, ensuring you never miss another software update.

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