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[[File:Ups-diagram.jpg|500px|thumb|center|UPS Connection diagram]] | [[File:Ups-diagram.jpg|500px|thumb|center|UPS Connection diagram]] | ||
[[File:Rpi-box.jpg|500px|thumb|center|Final solution connected in box with 3G modem]] | [[File:Rpi-box.jpg|500px|thumb|center|Final solution connected in box with 3G modem]] | ||
== Battery monitoring == | |||
If you need to monitor battery voltage and charging, please see my article about [[AD Converter PCF8591 for Raspberry Pi]] | |||
[[File:Adc2.jpg|600px|PCF8591 connected to Raspberry Pi on breadboard]] |