Wild Thumper woes with VNH2SP30 controller

Community General Discussions
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arduino_motor.pde (1481Bytes)
IMG_20150824_203923.jpg (1779822Bytes)
IMG_20150824_203955.jpg (1597279Bytes)
IMG_20150824_204023.jpg (1767937Bytes)

I bought a 4WD Wild Thumper after building three different robots successfully with a mix of Raspberry PI and Arduino and the L298N motor controller which is obviously not up to the current draw of the thumper motors.

This lead me to the VNH2SP30 dual controllers. I have bought 2 both of which give a different amount of current in forward and reverse - whether used with a small salvaged DC motor (500mA typical draw) or with the wild thumper motors. I am using a 2 cell LiPo 20-30C.

I thought this was an issue with the dual controllers so I bought 3x single VNH2SP30 controllers (minis) and used them instead - I get exactly the same problem. I am able to reverse the outputs of the controller and this results in the motors spinning at full speed given given the command 'CW' - but using 'CCW' they always run at a very low speed in comparison.

I can't seem to get past this and the saga has lasted 2 months already - so I'm opening it up to the guys here.

Please help!

Sample code and videos attached. 

(Embedded videos are not showing up - here are the links... )

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https://www.youtube.com/watch?v=Q04numNXo88
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Source Code

I do not see you source code. If it is the same as post some weeks ago I think the code for driving the motors is faulty. 

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Can you provide a link to

Can you provide a link to schematic for that motor driver?

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I am not sure where all the

I am not sure where all the comments have gone from this post - there were around half a dozen - but I’ve since found that these boards are of such low quality that almost none of them work. I am now using a better quality controller and having zero issues with getting the motors to move. 

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Hallo Alex,

which controller have you bought?

thanks