this post was submitted on 03 Oct 2023
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homeassistant

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Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io

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One success, one failure (lemmy.ml)
submitted 1 year ago by [email protected] to c/[email protected]
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I discovered some items on clearance at Home Depot, a Wyze Outdoor duplex plug and a Defiant smart plug. Did a little research on the modules I found inside and was pleased that both used esp32 microcontrollers. I got both disassembled, soldered up, and got to work flashing ESPHome, The Wyze was went well and is now integrated into my HA. Unfortunately the Defiant smart plug was defiant and when hooked up to do the flash I got a “Download mode disabled, reset with GPIO0 high.” Researching that I found that newer esp32 chips have a “Secure boot” fuse that once set disables future firmware updates from the UART. Not sure yet if there is an OTA exploit like the with BK7321 toya chips, but i’m not hopefull. If anyone knows of something let me know.

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[–] [email protected] 3 points 1 year ago (1 children)

A relay will do what a relay does, turn on and off. No matter what software you put on the smart plug, it can't really become too dangerous. Unreliable maybe, but most of these smart plugs are just that, a dumb relay controlled via a microcontroller