Wondering if anyone has done or knows if this is possible
I feel like I’m constantly changing batteries on these and where at least two of them are I could easily run a usb cable
Anyone done similar and know how?!
You just need 5V to 3.3V voltage regulator.
As a hard wired power, not to charge battery.
1 Like
Thanks, ordered!
The batteries I use say 3v - is there a margin of error in general with these things?
Should be fine.
Cr123a has voltage range from 3.3V to 1.5V (full to dead).
1 Like