Spike Prime Proportional Programs Part 3: Proportional Line Following

This is the final video in a 3 part series on proportional programs for the LEGO Spike Prime and Robot Inventor sets. This lesson will build on the first two and show you how to upgrade the program from the second program into a proportional line following program.

[@travislrobinson1]

Thank you! This is very helpful for our new FLL team.

[@g.s.495]

Thanks! This is extremly helpful to my new WRO team.

[@marcosalfonzoify]

Thank you for sharing this. It was very helpful for me.

[@PraveenGangasani]

This video was epic, thank you for sharing it

[@connerroth3416]

It can also be noted that these programs work with ev3, just running gyro blocks instead of yaw

[@chaps7163]

Thanks for sharing :-)

[@surrenderToHim]

Very good again

[@legaians1]

thanks man...this channel awsome

[@gibfordsrobotlab]

Thank you

[@ryan-gamer]

Thanks!

[@matthiasfrank9458]

-i wanted to ask, if you also have a video about the PID linefollower?

[@gibfordsrobotlab]

I haven't worried about adding the ID to the Proportional line following because this works good enough and it's easier for the kids to understand.

[@wasdwasd4977]

Mine works but it is going like there is not a kp like its corrections are very sharp and it is not going smoothly

[@barney7206]

Go panama!

[@h.s.9057]

Thank you, it is very nice. Can you post the complette Code because i want to try it

[@gibfordsrobotlab]

I am not sure how I would post the complete code? Try pausing the video and taking a screen shot.

[@tahseenansari1037]

Hello can you please tell how to make the gyro reverse

[@gibfordsrobotlab]

I am not sure what you are asking? There is an issue with the Gyro only going to 180, then counting back down. I haven't figured out a good way to deal with that yet.

[@tiedyelion]

Hi! Bit of a late comment, but for some reason the code wont work. The bot goes in a circle for a while, and then stops. I have watched all 3 vids and request some help. I use the same system as you, but it still doesn't seem to work.
Please advise
Thanks!!

[@gibfordsrobotlab]

I have started to see the same issue, I am wondering if something in a recent update has caused this issue. Thy gyro program still works perfectly but the line follower using the color sensor is definitely having issues. Currently, we have gone back to the basic line follower and aren't using the proportional one.

[@tiedyelion]

@@gibfordsrobotlab thanks! I’ll try and find a way out of this.

[@matsbeite6985]

@@tiedyelion did you find any fix?

[@tiedyelion]

@@matsbeite6985 not quite - but I did find this bit after testing - my friends and I all have different laptops and processors - only the Mac (with icore i3) would work. The icore 5 had mostly good functioning, but messed up on turning, and icore 7 didn’t work at all. A bit confusing, but try other icore 3 laptops, and see if it works!
Hope this helps!

[@matsbeite6985]

@@tiedyelion thank you i found another code that worked good for my needs but I’ll test it out on a icore 3 my pc and my moms Mac to check if there is any difference 👍

[@riaanshah6642]

NOT WORKING JUST SPINNING IN CIRCLES DISLIKED >:(

[@arthurhenrique5071]

u need ajust the kp

[@gibfordsrobotlab]

It's either adjust the KP as Arthur suggested or make sure that the motors are assigned to the same ports as the motors are plugged in to. If your motors are plugged in to A,C and the program is looking at A,B, then only A will run and the robot will go in circles.