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Cruise control by setting RPM over UART

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solidgeek
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Cruise control by setting RPM over UART

Hi guys

I have been developing a remote based on RollingGeckos library (https://github.com/SolidGeek/nRF24-Esk8-Remote) and I have been trying to implement some form of cruise control. My remote uses PPM to set the speed and UART to receive data from the VESC (PPM and UART). I am getting telemetry just fine, and I was thinking that I could use the ERPM value to set the RPM over UART, like so:

VescUartSetRPM( cruiseRPM );

However this command doesn't seem to do anything, and I was wondering if this is because the PPM signal is overriding any UART commands regarding speed/rpm?  If this is the case, is there any way I can activate and disable the cruise control function within the VESC over UART, while still having the VESC configured as "PPM and UART"? 

Any help is much appreciated! Thanks

yosoufe
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You can send a UART command with this tag

COMM_SET_APPCONF

 to set the app configuration. Your command should have the following values and data.

https://github.com/vedderb/bldc/blob/master/commands.c#L518

you should use this datatype to read and write the app configurations.

But you should read the app settings first and send it back by changing only `appconf.app_to_use` using the following data type

https://github.com/vedderb/bldc/blob/master/datatypes.h#L247

benjamin
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The PPM input will override the speed control command. Why don't you use UART only? One option with that would be to send the COMM_SET_CHUCK_DATA packet and use the nunchuk app, which has cruise control functionality among other things.

Lzx19961014
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I have new problems.  I want to control the VESC through the serial port to turn the motor forward and reverse, but I don't know how to realize it. Can you give me a way of doing it? For example, give me a piece of code? I am referring to this link to do https://github.com/R0b0shack/VESC-UART-Arduino.