Not sure that I will be of help here as I am not familiar with your remote, and I am not sure what hardware you are using. You should first post more details… What hardware are you using…?
Most RC tx/rx setups are similar… But each can be unique (you would need to look at your Transmitter(tx), Receiver(rx), and ESC documentation. Here is what I mean.
Application 1:
When the transmitter(tx) and the Receiver(rx) are paired. The center position of the transmitter motor channel is learned and stored.
Application 2:
When the Receiver is turned on it waits for the transmitter to turn on. It then waits to learn the Min/Max position for throttle (mostly rc airplanes).
Application 3 (VESC):
With a VESC you must setup the VESC using the VESC software. (Or whatever hardware VESC you are using). This is where you might say: “duh, I know that”… again, I don’t know what hardware you are using…
So. Your trim pots…initially when the tx and rx are paired - They should be set to 0 to start (neutral).
WARNING!!! - - - Make Sure - - -
SKATEBOARD IN A POSITION WHERE WHEELS CAN TURN FREELY AT FULL SPEED WITHOUT DOING ANY DAMAGE…
Turn on Remote.
Turn on Receiver.
Transmitter and Receiver should be paired. If they are not paired, Pair them.
{{{NOTE: These are basic statements… There are more steps to this. This is not a tutorial. Following these steps could brick your system.}}}
Somehow your VESC should be connected to a computer, and you should be able to access it through some VESC software.
In the APP, or remote settings you should see the PPM signal. You should also have a “Setup Wizard” of some sort that walks you through your remote setup…
For most VESC’s you can simply use the software to define center on the VESC. Once the VESC knows where “YOUR” center is - Then you run through the wizard and define the min/max…
If this incorrect, or someone has more input - Please correct me. Thanks.