Testing for failure with a multimeter is only partially effective, whereas a dedicated optocoupler testing circuit provides clear results in just seconds. For related tutorials and step-by-step build ...

Discover how to build a simple device that converts light into electricity using LEDs and diodes. This step-by-step guide demonstrates assembling an LED-diode cluster, connecting it to a capacitor for ...

A basic building block is often the key to completing an analog signal path in various applications, such as automated test equipment.

Elecrow has sent us a solar-powered ThinkNode M6 Meshtastic device for review. Last year, I reviewed the ThinkNode M1 and M2 Meshtastic nodes, and I was a ...

How often have you pulled out old MCU-based project that still works fine, but you have no idea where the original source ...

We’re not exactly worried about Armageddon here at Hackaday, but should we end up facing the end of the world as we know it, having something to pass the time would be nice. That’s why ...

Using Arduino's TouchRead sketch to program my ESP32 to turn on an LED light once the serial monitor's sensitvity gets to a defined threshhold. - boydjawun/esp32-touch-sensor-LED-beginner-project ...