Tutorial From AtoZ : 2DOF arduino wiper playseat

Hi Mat,

May I use this code with VNH3SP30 from Olimex??? Do I have to chance any line due 24V???

Thanks a lot

from the specifications here
https://www.olimex.com/Products/RobotParts/MotorDrivers/BB-VNH3SP30/resources/vnh3sp30.pdf

it uses 2 pins for direction: look for the appropriate code in the resources section
http://www.xsimulator.net/community/marketplace/authors/racingmat.8138/

Thanks Mat, but I have a new question now...

Does VNH3SP30 can handle the ultrasonic PWM on 24V??? On code resources just say that 36V cant handle. But runnig on 24V, can I use that code?

Thanks a lot again....

first https://www.google.fr/search?q=VNH3SP30

first result: https://www.pololu.com/file/0J51/vnh3sp30.pdf

first page of the specification: PWM operation up to 10 kHz

I appreciate your attention!!!

This hole think has been like doing a cake, for me. I have all the ingredients, but i don't know the receipt... sorry for any inconvenience.

I'll try to find out a way to increase PWM to 10kHz instead of 20kHz and see if it will cut off the noise or will reduce at an acceptable level.

Thanks!!!

Hi - might be worth updating that wiring diagram. I was using pins A4 and A5 as illustrated for the pot centre pins - spent a few hours trying to get it working - however I noticed in another post they should be A0 and A1 Have not tried it yet - however I think it will stop my motors spinning randomly... Also - is there a way of changing your account name - put my real name in the registration for account purposes - not thinking it would be my pseudo name... For privacy and information security purposes - there should be a facility to change this in the account settings.

Sorry, it's done: drawing is corrected!
If you find my tutorial useful, click thumb up on the first message ;-)

Hello ，RacingMat,I want to know,how to change Tolerance parameter in code. I can‘t find this part in code. thank you！

here it is!

Code:

////////////////////////////////////////////////////////
void motorMotion(int numMot,int actualPos,int targetPos)
////////////////////////////////////////////////////////
{
  int Tol=20; // no order to move will be sent to the motor if the target is close to the actual position

don't hesitate to post photos of your sim (or part of it) I'd be glad to see it

ok! Thanks your help，and I will post my sim when it can work。

Hello, RacingMat. I had built my own simulator based on your design, but I face a problem now about the DC wiper motor. It seems that my DC wiper motor is not strong enough to move the simulator because the motor can easily become hot and I would like to ask is there any DC motor that is bigger and better than DC wiper motor? The DC wiper motor that I use now is 24V. Thank you in advance

hello @Johan Soegiharto
I'm glad you found my tutorial useful!!

I'm surprised your 24V motors are too hot...
- How long is your levers? (more than 60mm?)
- How heavy is your upper plateform (and pilot ? )
- What is your PWMmax setting in the code?

Please post some pictures, it will help

Thank you for your reply. My lever is around 60 mm since it is included with the DC wiper motor and the upper platform is around 30 to 40 kg? I don't know the exact amount of weight since I never measure it. I set the PWM max to be 255.

70mm is really long
Try drilling a hole at 50mm (distance between two axes) and see if motors are still warm and if the feeling is ok (probably more reactive)

Thank you for the advice, I'll try it but I think the torque that is produced by the motor would be the same right? I think the problem of my rig is that it is too heavy and cause an overload to the motor so I try to find a bigger motor to replace it. If it is not working do you have any other suggestions maybe? Thank you

The torque is proportional to the length of the lever, so shortening the lever as recommended by @RacingMat reduces the needed torque.
I would try this first before getting bigger motors.
And did you balance your rig correctly, so that its weight lies on the pivot point when it is not tilted?

+1

hi i need some help with my potentiometer, and done everything that is in this place each of the things described here and me worked well till now when I put the potentiometer by the wiper motor, does not stop causing the potentiometer is Destroyed

and changed the potentiometer, and put a 10k ohm cermet Linial and I work until the moment sending commands from the arduino just as indicated in the pots something like this RFFLFF, R3FL3F, R7FL7F. and I work ase what q deve Aser with the same previous detail, when I put it facing the wiper motor I did not stop but continues rotating uncontrollably in the previous test I burn the usb ports of my pc this occasion put a fuse so only the fuse shot the question is how I solve that problem, perhaps have to fix it from the arduino code. thank you answer my call.