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Comments by Jon
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New product: CH Robotics UM7-LT orientation sensor
- 24 May 2019Hello, Pravin.
Like I mentioned in my reply to your email about this same issue, we do not really have any more specific advice than what is already being discussed in the thread on the Arduino forum that you started:
https://forum.arduino.cc/index.php?topic=616027
In general, if the other UM7 that you ordered has the same issue, that is more concrete evidence that there is an issue with your setup or code. Also, you might try directly contacting RedShift Labs, who has taken over from CH Robotics as manufacturer of the UM7:
https://www.redshiftlabs.com.au/
-Jon
Building a Raspberry Pi robot with the Romi chassis
- 13 May 2019Hello, George.
Thanks for letting us know; we've updated our posts.
-Jon
David's line following robot that learns the course
- 14 March 2019Hello, Pratz.
A 3 degree curve is almost a straight line, so I suspect the behavior of David's code would not be very different in that system. If you want to change how the robot drives for other curves or features on the third lap, you would have to come up with a way of telling when the robot got to that feature and add some your own code to handle it.
-Jon
Jon's line following robot: Usain Volt 2.0
- 14 March 2019Like I mentioned in an earlier reply, I do not think it is useful to upload my code since it is entirely based on and not much different than our 3pi's PID line following code, which you can find inside the 3pi's user's guide.
-Jon
PID line follower with 5" robot chassis
- 12 February 2019Hello, vinay.
The maker of that robot, Enigmerald, links to a tutorial about PID for line following that they wrote.
-Jon
PyTic - Python interface for Pololu Tic Stepper Motor Controllers
- 23 November 2018Hello, anon.
We changed the blog post's wording to address your concerns.
-Jon
New product: Sharp GP2Y0A51SK0F Analog Distance Sensor 2-15cm
- 29 October 2018Hello, marco.
We noticed your post on our forum and I responded to it:
https://forum.pololu.com/t/gp2y0d815z0f-slotcar-application/15939
Please continue the discussion there.
-Jon
Building a Raspberry Pi robot with the Romi chassis
- 24 September 2018Hello, Gregg.
You can just call
a_star.motors(200,200); theint()function is for converting strings to integers.Also, we noticed that you created your own topic on our forum:
https://forum.pololu.com/t/romi-raspberry-pi-motor-control/15704
The forum is our preferred place for troubleshooting code, so please continue your discussion there.
-Jon
Know your units
- 2 August 2018Hello, Pedro.
On our website and in our documentation, we try to specify torque in metric units of kg⋅mm or kg⋅cm, and it is implied that the letters kg represent kilogram-force (kgf). This is a common way to express torque; you can read more about this convention under the "Units of force and acceleration" section of this blog post.
By the way, the weight of a mass of 1kg is 1kgf. So, there is no multiplication by 10 involved in converting between those. Factors of 10 (or 9.8) would come up if you need to convert between N and kgf or mm and cm.
-Jon
Now available: VL53L1X library for Arduino
- 25 June 2018Hello, Badri.
I am sorry you are having trouble interfacing with your sensor. We would have to know more about your system in order to figure out why you are getting that message, but the comments section of a blog post is not a good place to begin troubleshooting. Can you create a new topic on our forum and tell us more about your setup? In particular, it would be good to know which Arduino you are using and how you are supplying power to the VL53L1X. It would also help for you to share pictures that show all of your connections and soldered joints.
-Jon