How to dim your remote LED on your ALP system

[radargeek]

The hardware has no regulators to change the resistance or voltage of the LED's. A simple change like this would require a hardware modification.

Pulse width modulation (PWM) can be done entirely in software; it's just turning the LED on and off at a high rate of speed so to the eye it looks like it's constantly on and by changing the duty cycle (% of time on vs. off), the brightness of the LED can be changed entirely in software.

Just about everything uses PWM now, from the backlight in your smartphone screen to the display in your RD, and even the lights in your car. Unless there's some limitation in the ALP CPU's design in how it addresses the LEDs, it should be simple to implement in firmware.

A Sharpie works too.