Rotation the motor with Arduino Motor shield

Other Hardware Motors, Mechanics, Power and CNC
21

I'd like to use it in its main function: unipolar

I just don't know how to program

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The panel will be mounted on an aluminum profile support.
Fix on a plastic place underneath

The support that I place on the ground at the same plastic plate on rotary ball trays

The motor is on one side of the board with its 40mm gear that drives a large 400mm gear wheel fixed to the top plate.

I was just wondering if the motor will be able to lock the rotation in position with the brakes.

23

There are no brakes on the motor. The motor has holding torque as listed in the data sheet you linked to. So if the motor is powered and not being pulsed to move, it has holding torque. That times the gear ratio will give you the holding torque for your system.
Then measure the torque required to move the array by hand. If this torque is less than the system holding torque, the the motor will keep the array from moving.
Simple mechanics!

1 Like
24

Exactly, that's why I chose a fairly large engine in terms of resistance.
You'll also have to take into account the wind, which could force the panel to turn.
At least up to the stop that I'm going to put
Before the 8am gearing and after the 10pm gearing to make sure the panel doesn't turn on itself

modul = 2
gear 1 = 24 gear teeth = N1
gear 2 = 120 gear teeth = N2
C2 = N2/= N1*c1
C2 = 120/24 * 75N = 375N = 37.5KG

Is that right?

25

I've read the whole tutorial, it's very informative
I'm going to try it with a new Arduino

It talks about cutting the VIN connect on the Shield, mine is already unsoldered and yet I burnt my Arduino, do you have to twist the VIN pin that goes down to the Arduino?

26

no one right handling cause burning. not connecting Vin cause not burning.

apologize, i don't understand.

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I'm trying to find out why my Arduino burnt out:

  1. I thought that powering the motor-shield in 12v + the arduino in 5v via USB was the cause
    => Apparently not, the 5v power supply switches off automatically according to what I've read on the arduino forum.

  2. My 12v power supply may be of poor quality
    It delivers 12.27v, maybe too much for the arduino.

  3. The motor may have overheated because of a bad program and called too much current.

To protect the future Arduino, I did this on my motor-shield

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