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Electronic Speed Control (ESC) basics.

asked 2020-07-17 13:41:39 -0500

MrRivi

38 ●6 ●10 ●14

Hi, I am new to ROS and I am making an autonomous buggy scale 1:10.

I am trying to understand how to communicate with the Electronic Speed Controller (ESC) of the Buggy's DC motor. I have also checked the page: http://wiki.ros.org/Motor%20Controlle.... And my ESC is HW-WP-1040-BRUSHED, you can see it here: https://www.redcatracing.com/products...

I am using a Raspberry 3B+ with Ubuntu 16 and ROS Kinetic. I have already achieved the connection with the steering servo using an Adafruit servo board.

Any source I can read from is welcome.

Thank you.

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answered 2020-07-30 03:55:28 -0500

MrRivi

38 ●6 ●10 ●14

So basically, I just tried the same PWM control for the servo but on the ESC. Have a look at this gits:

https://gitlab.com/bradanlane/ros-i2c... (works fine with my ESC)
https://github.com/liamondrop/ros-pca... (this one needs WiringPi, couldn't make it work)

My ESC works in a very narrow range (340 on the pwm value means no speed, and 350 means top speed more or less).

I am going to try the proportional control offered in the first git.

Regards.

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Asked: 2020-07-17 13:41:39 -0500

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Last updated: Jul 30 '20

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Electronic Speed Control (ESC) basics.