Looking for a simple circuit to control the light intensity ... we can use the low voltage output from the Arduino ports to control high voltage/current loads -the popular “12V LED strips”- for ...

Instead of the relative horror of driving 40 LEDs with a single Arduino, [Martyn] bit the bullet and got a Maxim 7221 LED driver ... and control the entire circuit, [Martyn] used an Arduino ...

He sourced a 10W power LED which requires 12V @950mA ... sensor to his Arduino in order to shut it down if it gets too hot. The Arduino also provides the dimming circuit and remote control ...

Here is a useful circuit for Arduino lovers and experimenters. It is a simple digital voltmeter, which can safely measure input dc voltages in 0 to 30V range. The Arduino board can be powered from a ...