Hey y’all, first post so sorry if I broke any rules or anything, I’ll change it or take it down if I need to. So I’ve been looking into making a driver for a custom light I’ve been wanting to make for a while now. Been into electronics forever and feel I’m finally up to the challenge.
I’m trying to make a driver for a flashlight with two XPL HI emitters and 2 LG UV emitters. I’ve settled on 8 “individually adressable” 7135 chips with one being PWM, and a FET driver for a turbo mode. But my issue is in finding a way to switch from the white LEDs to the UV LEDs. I can’t figure out a way to do this without simply using a spdt toggle switch as I haven’t found a relay or analog switch that could handle the current, and I plan on using an attiny84 so I only have 6 IO lines.
Thanks so much y’all!
Can you please explain your idea of connections?
Xpl - 1*7135, 3*7135, fet
Uv - 1*7135, 3*7135
So that’s only 5 io lines.
I just realized that, it’s been a long night and an even longer day.
But I planned on doing 7135s in binary groups for the xpl, plus an extra 7135 for a total of 8 so four groups in 1, 2, 4 and the extra one on a PWM. And the last IO for an eswitch. But I’m also considering going for attiny84 and using the extra IO to add some other LEDs for a more effective flood setup and using an FET on PWM for the UV LED.