I have spent at least an hour almost every day since the 80’s advancing my knowledge in electronics. Recently I brushed up my knowledge on LED fading secrets and attained something pleasant. Now, I’d ...

Here is an artistic Arduino project for the fun-minded. The circuit is an Arduino RGB LED controller running on a sweet ‘n’ simple code,but with a little hardware surprise outside the Arduino board.

I wanted to do something really simple. Having several LEDs controlled by PWM. Everything was working very weird with analogWrite so I tried several boards and reduced the setup to the minimal. It is ...

Where pin is the number of the PWM capable pin you want to write to, and value is the duty cycle between 0 (always off) and 255 (always on). Explain why 0 volts corresponds to 0 and 5 V corresponds to ...