The Raspberry Pi Pico 2 is equipped with an LED that can be controlled by a program, so we will actually write an LED blinking program to the Raspberry Pi Pico 2 and make it blink.

Current and dimming level programming is conveniently done by writing to and reading registers via a serial interface that uniformly controls the brightness and blink rate of each LED.

He’s actually crafting the operation codes for a PIC microcontroller by hand. We’re glad he’s explained this in-depth because right now we feel way over our heads.

There are plenty of utilities out there to control keyboard LED indicators, but I'm rather interested in controlling the power LED on my headless 1U rackmount. While theoretically there are tons ...