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ar38150

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  1. ar38150

    Hi JColvin!

    I'm currently working on an autonomous robot which uses 4 DC Geared motors with encoders and 2 MyRIO Motor Adaptors, whith either one being connected to MXP A and MXP B of the myRIO. However, I've came to notice an issue with the motor adaptor boards, they do support two DC motors but only provide one encoder reading.

    Therefore, I decided to use C/ENC0 and C/ENC1  from the MSP connection of the MyRIO in order to have additional encoder signals. I get C/ENC1 to work with port B and the two seperate motors get two seperate encoder readings etc. However my problem is with C/ENC0. Motor 4 is getting an encoder reading however it's not changing the polarity of the count when the motor changes direction. It only changes polarity when motor 1 changes direction. 

    I've tried switching the encoder signals around ( C/ENC0 to MXP B and C/ENC1 to MXP A) and when C/ENC1 is connected with MXP A motor 4 works perfectly! But when C/ENC0 is connected MXP B the same behaviour as seen on MXP A is shown in Motor 3 (count direction).

    I've attached my VI which shows each connection made and I've also attached images of the connections, showing the C/ENC encoders. I would appreictae any help, I'm hoping this is just a small error I've made!

    MXP A - Motor 1(A/ENC)+ Motor 4 (

    MXP B - Motor 2 + Motor 3

     

    Best wishes.

    encoder.PNG

    IMG-0763.jpg

    IMG-0764.jpg

    IMG-0765.jpg

    Encoder.vi

  2. ar38150
    Hi everyone, For my project I have two myRIO motor adaptors that are both used with two motors each, and each give encoder signals. However, from testing it was notcied that only two of the four motors would give an encoder measurement. I found that even though the adaptors can support two DC motors they only provide one encoder measurement, which isn't ideal. Therefore, I've decided to use the MSP Port, where the following channels are being used for additional encoder signals : DI06,DI04,DI02, and DI00. I've attached the wires to these channles however I'm slighty confused on where I'll connect these wires to on the adaptor board. Should I place the wires in the header pins on the board or use them in the encoder terminals? I'm using a simple code to check the that it works for each channel, however I don't think I'm changing the code correctly to support the additional channel. Any help is apprceiated! Robot Movement.lvproj
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