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ARPIS

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A.R.P.I.S. (Another Raspberry Pi Stack)

I designed this stack, because i wanted a flexible stack case for several rpi2 and or rpi4 boards. Furthermore i also wanted to add a small UPS to the stack to keep the raspberry running when the power comes off.

I used the Type-C 15W 3a 18650 Lithium Battery charger Module with backup power:
https://nl.aliexpress.com/item/1005005040201132.html?gatewayAdapt=glo2nld
For the voltmeter i used this one:
https://nl.aliexpress.com/item/32817684162.html
For the battery meter:
https://nl.aliexpress.com/item/32851338868.html
The pogopins i used:
https://nl.aliexpress.com/item/4001085839296.html
And for the contact islands:
https://nl.aliexpress.com/item/4000528572282.html

Raspberries are powered by the pogo pins and the 40-pin connector.
All the units are powered also with the pogopins.

An external powersupply 5V 3A (1A/rpi) is also needed to keep the batteries charged and the raspberries powered.

If extra cooling is needed, a coo