My Astrolux A01 quit working almost 2 years ago, and I had spare parts laying around from the v1.0 of my Booster Tails. So what to do? Create a basic boost driver for it! No MCU, no modes, no PWM… just nice, consistent output. It can technically handle a 10440 as well (input: 0.7 - 5.5 V), but I don’t see a need for that.
My 7yo needed a simple light for reading at night, so I dialed it down to ~6.7mA to the 219B for 3 lumens. I think that may even be too bright.
