I've done a similar thing with a "dumb" washing machine using a Arduino with an ... | Hacker News

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ubergesundheit on April 12, 2023 | parent | context | favorite | on: Displaying My Washing Machine's Remaining Time wit...

I've done a similar thing with a "dumb" washing machine using a Arduino with an attached LDR (light-dependent resistor) taped to the "door open" LED.

The Arduino sends the value of the LDR over serial port to a laptop which sends changes to the "door open" over Signal to my phone

aabdelhafez on April 12, 2023 [–]

Side question: you can use Signal programmatically?

ubergesundheit on April 15, 2023 | [–]

I’m using https://github.com/bbernhard/signal-cli-rest-api which exposes a REST Api

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