Hi- we are trying to use encoders with the REV core motor. We can run the motors, w/out encoders, using the gamepad. But we can net get the motors to do respond to the buttons... The program has "A" assigned to "Go to Position 28000" and "B" assigned to "Go to Position "500" But nothign happens. If you have any advice, we'd appreciate it. Or even better, if you'd make a video of 'Using encoder to run a motor to a specific location" Thank! Michael
Yes, you can use Run-Using-Encoder as illustrated in the first part of this video and terminate the loop based on what the color sensor detects. See also th-cam.com/video/iQufRF1HFRc/w-d-xo.html and th-cam.com/video/uSEEO3_JVTI/w-d-xo.html
@@mistywhitehead9242 The motor controller can only be in one mode at a time so the last mode you set will be the one used in the blocks that execute after it until the mode is changed again.
When trying to test the Run to Position code I get an error: "Fatal error occurred while executing the block labeled "set backleft.Mode to." Please help! I have checked the Configuration file for the motor name, I have checked the encoder cables. I am using a Rev Hex Motor.
Please send me an image of your program. Display your opmode and then click on “Download Image of Blocks” button toward the top. Email the resulting PNG file to ftcblockshelp@ortop.org
If you are using REV hex motors you can plug them directly into the ports on the Expansion Hub next to where you plug in the motor power cables. If you are using other brands of motors/encoders you'll need a level shifter as described in the video at the link given above. They can be ordered at www.revrobotics.com/REV-31-1389/
Have you double checked that the encoder cables are plugged into the connectors next to the corresponding motor power cables on the motor controller or REV hub?
just double checked, everything looks good...just odd since the first part of the program/video (going straight 2 rotations) works fine....when I try the second part of the video (run_to_position part) it doesnt
Double check the blocks in the second part. Try adding telemetry blocks in the last loop to report tick counts to driver station to get a better idea of what's going wrong.
Hi- we are trying to use encoders with the REV core motor.
We can run the motors, w/out encoders, using the gamepad.
But we can net get the motors to do respond to the buttons...
The program has "A" assigned to "Go to Position 28000"
and "B" assigned to "Go to Position "500"
But nothign happens.
If you have any advice, we'd appreciate it.
Or even better, if you'd make a video of 'Using encoder to run a motor to a specific location"
Thank!
Michael
For some info on connecting gamepad buttons to actions see th-cam.com/video/75ndVZzZJjU/w-d-xo.html
Can you change from Run_to_Position to something else in order to use the color sensor to stop on the line?
I have run to position above the repeat until and then I have run using encoder under that and a repeat while under that.
Yes, you can use Run-Using-Encoder as illustrated in the first part of this video and terminate the loop based on what the color sensor detects. See also th-cam.com/video/iQufRF1HFRc/w-d-xo.html and th-cam.com/video/uSEEO3_JVTI/w-d-xo.html
@@mistywhitehead9242 The motor controller can only be in one mode at a time so the last mode you set will be the one used in the blocks that execute after it until the mode is changed again.
When trying to test the Run to Position code I get an error: "Fatal error occurred while executing the block labeled "set backleft.Mode to." Please help! I have checked the Configuration file for the motor name, I have checked the encoder cables. I am using a Rev Hex Motor.
Please send me an image of your program. Display your opmode and then click on “Download Image of Blocks” button toward the top. Email the resulting PNG file to ftcblockshelp@ortop.org
I have a same problem...Did you find out why??
Can someone help me out with the encoders to rev expansion hub connection?
See th-cam.com/video/U3E5AM56xzg/w-d-xo.html
If you are using REV hex motors you can plug them directly into the ports on the Expansion Hub next to where you plug in the motor power cables. If you are using other brands of motors/encoders you'll need a level shifter as described in the video at the link given above. They can be ordered at www.revrobotics.com/REV-31-1389/
Also see Also see pages 8, 17 and 18 of www.revrobotics.com/content/docs/REV-31-1153-GS.pdf
Thanks
when trying the last part of this program it just gets stuck going forward without stoping...i cant figure out why
Have you double checked that the encoder cables are plugged into the connectors next to the corresponding motor power cables on the motor controller or REV hub?
just double checked, everything looks good...just odd since the first part of the program/video (going straight 2 rotations) works fine....when I try the second part of the video (run_to_position part) it doesnt
Double check the blocks in the second part. Try adding telemetry blocks in the last loop to report tick counts to driver station to get a better idea of what's going wrong.
i'll see what i can do...thanks
Is there an email i can reach you at?
Yes, ftcblockshelp@ortop.org
hey man