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gorgoiler
on Aug 22, 2024
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Designing my own watch (2020)
The Casio watches have a little buzzer and the standard SensorWatch codebase has a modem that uses it to send data:
https://github.com/joeycastillo/Sensor-Watch/blob/0ad5fa4733...
greesil
on Aug 23, 2024
[–]
Lol that's cool. It would be hard to do secret messages but maybe I could do an audio remote control with this.
gorgoiler
on Aug 23, 2024
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Have a TOFU (trust on first use) mode that exchanges a key with the receiver
very quietly
? Regular transmissions are all at FULL VOLUME and assume the receiver has the key.
So much fun to be had!
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https://github.com/joeycastillo/Sensor-Watch/blob/0ad5fa4733...