This is the easiest and fastest way to get the LED Clock up and running. I mostly use "ESP-WROOM-32 Devkit" as microcontroller for my projects (I may will move to ESP32-C5 in the future as this is the ...

When you think of Arduino projects, your mind likely goes straight to RFID door locks, weather sensors, or automated plant watering systems. While these are undeniably pretty cool projects, you might ...

Measuring the speed of a rotating object is a common requirement. Knowing the speed of table and ceiling fans, as well as kitchen appliances such as mixers and grinders, can often be useful. However, ...

There’s a long history of devices originally used for communication being made into computers, with relay switching circuits, vacuum tubes, and transistors being some well-known examples. In a smaller ...

Electronic paper or ePaper is a display technology that exhibits the appearance of traditional paper. E Ink is a specific brand of ePaper technology, and it has been deployed in various products that ...

On this page I present to you a small instrument capable not only of checking the good condition of a crystal (sometimes unknown when its marking is erased or illegible...) but also of displaying its ...

Ah, the age-old problem. You’ve got one oscilloscope, but five engineers want to use it; one telephone line, but three people want to make calls; 20 LEDs, but only eight GPIOs remain on your ...