(Sorry. I was too too tired when I wrote this. My BRAIN meant Vin. my FINGERS typed Vext. Please accept my apologies. I will push the keyboard away when I am tired next time)
Is it possible to measure Vin on a cubecell capsule?
My motivation is to use a large, cheap battery. I have capsules available, and this new application has no space limitations.
Instead of poking about with a jeweller’s screwdriver and soldering iron for a solar panel and LiPo battery, I can plug a large, dumb, disposable 6v battery into Vin on the 20pin connector.
But, can I measure it? I’d like it to alert me (in five years?) that it is going flat.