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by int0x2e
1101 days ago
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My smart home is also my home security solution, so I wanted it to work through a (short) power failure. Getting a UPS for my Home Assistant node was the easy part. Like you, I was worried about the many nodes scattered throughout the house that needed power. The solution I've come to for now is using a USB plug for mains power, that goes through a DIY USB battery bank charging board (that I got off AliExpress) that's plugged into an 18650 cell. Most of these boards can either charge or provide a 5v out, but some are happy to do both at the same time, and can act as a mini-UPS. |
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