I've had great luck with Waveshare UPS HATs as they:
?? - Offer top or bottom style HATs for different Raspberry Pi form
factors
?? - Allow for simultaneous run and charging
?? - offer I2C monitoring of power status, load, etc.
?? - offer different battery types (21700, 18650s and Li-Ion packs)
?? Rpi4 Top: (uses the GPIO
header)
?? Rpi4 Bottom: (uses pogo
pins)
I *think* their 5A HAT board is compatible with the Rpi5 but that
needs to be researched.?
The main issue I see here for you is their DC input is 8.4v on most
of their units and not say 12v.? This is easily dealt with a good
quality adjustable buck-boost unit such as
(make sure the unit you buy
can keep up the expected voltage at it's max load -- most DON'T).
--David
KI6ZHD
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Our club is in the consideration mode for a Pi based
packet system with expansion to a VHF an HF RMS. The site has a
generator for backup but I know generator power can be dirty and
not immediate. We have a 50 amp Astron and I would like to run the
Pi from that. Not settled on the verson of Pi but both Pi4 and Pi
5 are in consideration.
So, what would be the recommendation or success stories with a hat
based UPS in the pie and what is a good way to power it from the
12 volt Astron?
73
Dave
WB9TEN
