So I as working on this device (30x40mm) that you connect to a VESC and the second channel of your PPM remote. It automatically logs your data like odometry, watt hours, cell voltage… By using your remote it “beeps out” your data using a buzzer. It stores data over power cycles automatically (using an FRAM chip).
The purpose is the same as of those remotes with LCD screen. But at a VERY cheap prize point, plus no configuring the VESC. The other though I had was, that looking at a screen is a bad thing when you should focus in the road. With this device you can do both: look at the road and hear your telemetry data.
What do you people think?