Comment by rft
3 years ago
Reminds me of a prank I pulled with a mate on a colleague. They recently got standing desks and of course a bit of fun ensued with them. Over one weekend we build a remote control for it based on an ESP32, of course fully MQTT compatible. We hid it as best as we could and it was not visible unless you crawled under the desk. Fun was had, because you could just program the behavior via a small python script and override the physical buttons. It also was briefly hooked up to my Home Assistant for voice control.
We used nothing as fancy as an oscilloscope, bought a new RJ11 cable, cut it in half and interposed the connection from the remote to the controller. We also used relays, just for the nice clicking sound :)
My plan was to get my setup super fancy to also display the current height and memory functions from within the Mac utility, so it had to read the full protocol that the remote used. Up/down alone was supposed to be the proof of concept, but once I got it working, it was good enough that I didn't really care about the rest.