pi:poor_persons_ups
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pi:poor_persons_ups [2023/04/04 12:31] – m0lte | pi:poor_persons_ups [2023/08/16 14:46] – m0lte | ||
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====== Raspberry Pi: Poor persons UPS ====== | ====== Raspberry Pi: Poor persons UPS ====== | ||
- | For a long while I’ve been looking for a cheap and easy solution for Raspberry Pi battery backup without lots of cost / complexity. This it it. That module is 12V to 5V at 3A, readily available off eBay. That diode is an old 6A4 but anything reasonably sized will do. A recommendation is a Schottky MBR1635 for low voltage drop. The connectors are Wago blocks. The reds and the blacks | + | For a long while I’ve been looking for a cheap and easy solution for Raspberry Pi battery backup without lots of cost / complexity. This it it. That module is 12V to 5V at 3A, readily available off eBay. That diode is an old 6A4 but anything reasonably sized will do. A recommendation is a Schottky MBR1635 for low voltage drop. The connectors are Wago blocks. The positives |
I am informed that a low value series resistor is sensible to limit current, should the mains go out for a significant period of time and the battery voltage drop too far. | I am informed that a low value series resistor is sensible to limit current, should the mains go out for a significant period of time and the battery voltage drop too far. |
pi/poor_persons_ups.txt · Last modified: 2024/04/15 18:45 by m0lte