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I need clarification on connecting a Magura 0-5k Ohm Pot Twist Throttle to Tronic 250 VESC.

Submitted by notahorse on Fri, 2022-06-03 08:13

Hello,

So I've read multiple forums (though very few posts...) in regards to this throttle ' Magura Twist Grip Throttle 0-5K Ohm ' - Here's the details:

 

The Magura Twist Throttle has a 0-5k ohm output for Electric Scooter / Bicycle.

Segway tuning for a project using 2 VESC based ESCs

Submitted by Clayton Haight on Wed, 2022-06-01 05:03

Hi all, I am attempting to use two VESCs and two hoverboard motors (the standard 6.5in 30 pole ones) to make a segway type robot similar to the telepresence robot by Double Robotics. Specifically I am using one HW4.12 ESC and one Flipsky 75100, paired with AMT102-V encoders on each wheel. I originally tried to just use the built in hall sensors, but couldn't get low enough speeds no matter what method I tried to use, encoders allow me to get down to around 200ERPM with +/-10ERPM after PID tuning.

Two Vesc6 MKV twin arrays ESC's - BMS CAN BUS connectivity

Spaceman's picture
Submitted by Spaceman on Fri, 2022-05-27 16:22

Hello all, 

Newly introduced to the VESC project and everything ESC and apologies (due to no search feature in the forum) and if the question has been raised in the past? 

Is there any possibility of connecting a CAN BUS from a BMS into a twin array VESC6 MKV.  As both CAN BUS connections are already utilized by pairing the two ESC's, is there any work around such as a CAN BUS HUB,  recommendations to network the extra BMS CAN.

 

 

 

Getting a specified rpm via ROS node

Submitted by Owl Robot on Fri, 2022-05-20 17:38

I'm trying to send a specified rpm to a VESC controller using a ROS node in python. I was able to listen over the canbus while commanding RPM in the VESC Tool and tried to copy their messages. Right now I have the node make an OS call using os.system("cansend can0 {0}".format(command) where the command is "00000-insert motor id in hex-#020008-insert RPM in hex". I have it sending messages at a rate of 10hz. This seems to work for the most part but it fails when I need to stop the robot. It seems to coast to a stop when I send 0 RPM instead of braking.

ADC Throttle Voltage Issue

Submitted by Reichen Schaller on Fri, 2022-05-20 01:02

I have had an issue with an ADC throttle and after searching through the forum I found some older threads that had people asking very similar questions but never getting them answered. (As far as I could see that is) The issue is that I am using an ADC foot throttle whose range of inputs seems to exceed that of the ~3.3v maximum for adc1. On the throttle itself it says 0.8-4.2v. Additionally, when I measure the range the VESC sets the 100% at about 80% or the throttle's range.

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