HoTT TLM / Support VSpeak turbine protocol#3382
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mha1 merged 15 commits intoExpressLRS:masterfrom Nov 4, 2025
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CapnBry
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I don't have a turbine (but if someone want to send me one I would certainly destroy it same day) but this looks acceptable as a manufacturer supported extension.
I think you may want to do a pull for the docs repo that documents how turbines are supported over HoTT, so other manufacturers can replicate it easily? Just a short sentence about what brand this is and the 5 fields that are repurposed into RPM and temp
pkendall64
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Some comments, take them with a grain of salt.
Yolo-ing this as I don't have a turbine, but the video is cool.
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This PR extends the HoTT TLM implementation to support VSpeak (https://www.vspeak-modell.de/en) turbine ECU telemetry providing turbine vitals: ECU voltage, Pump voltage or PWM depending on turbine type, RPM, Fuel remaining in ml, Fuel consumption in ml/min, EGT, Throttle, and status.
https://youtu.be/Wsp9HscGZ60?si=Ks8zLKUbPqulmS9T