The build relies on that old stalwart, the Arduino Uno, to run the show ... The analog meters are simply driven by the PWM outputs of the Arduino. It’s not a hugely complex project, but it ...

But even after eliminating the Uno from your selection, you'll still be left with a wide array of Arduino boards to choose ... and D12. The PWM output pins on the two boards also differ, with ...

The humble ATmega328 microcontroller, usually packaged as an Arduino Uno, is the gateway drug for ... efficient class-E RF power amplifier with PWM for about 5W of output power.