I have a Boost converter with a constant current mode that allows me power a high power led (Vf 34, 3A). I'd like to be able to control the current potentiometer on this device with an arduino.
To do so, I was thinking I could swap out the analog potentiometer with a digital one. I looked it up, and found this page from Analog Devices about their digital potentiometers. However, I have no idea which to choose. The potentiometer I'd be replacing is a 3 terminal, Baofeng 1/4W 10K potentiometer.
I don't have much experience with DAC/ADC, so I'm not sure if this is the best way to do it. I also looked into replacing the PWM chip on the boost converter with the arduino's pwm output, but the chips are unmarked.
I also looked at using a TIP120 with the arduino's PWM to change the brightness, but I don't think this would be the best, as it might cause surges of power.
I can include actual photos of the device, but this is the device in question. I'd ideally replace the current potentiometer, as it would allow me finer control.