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Tachymetre
#11
(01-20-2017, 07:46 PM)chapulino Wrote:

[Image: IMG_1431.jpg][Image: IMG_1432.jpg]Great YuriY

Tried on my circuit hand made and run perfect

A senson hall 3144
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A resistance of 10K between V. Out of the sensor and GND
Another resistance of 4.7K between V In of the sensor and GND
Sensor V. Out (check 3.3V voltage) connects to  input 1.4 of the MSP430

[Image: ink-image%20%282%29.png]

Thanks very much

Bonjour,
Est-il possible d'avoir une photo du signal sur la pin 1.4.
GG

Hello,
Is it possible to have a picture of the signal on pin 1.4.
GG
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#12
1.4 is the pin number six of the procesor

Sorry mi board is closed in the box,  i think this photo is ok
[Image: LS01-99-0087-C-600x600.jpg]
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#13
Yes, it's the same module I have.
But what I would need is the shape of the signal that enters the pin 1.4 measured by an oscilloscope. I would like to compare it with my own signal.
Georges

Oui c'est bien le même module que j'ai.
Mais ce qu'il me faudrait c'est la forme du signal qui entre sur la pin 1.4 mesurée par un oscilloscope. Je voudrais le comparer avec mon propre signal.
Georges
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#14
Now I understand your question, but I do not have an oscilloscope.

The signal that I can measure with a multimeter is as follows,

When there is no magnet, the module gives a signal of approx. 3.2v, when the sensor detects the magnet, the signal goes to 0V
I imagine the signal on an oscilloscope should be a square signal 3.3v - 0v - 3.3v - 0v and so on to infinity.

Maintenant, je comprends votre question, mais je dois oscilloscope.

Le signal I peut être mesurée avec un multimètre est la suivante,

Lorsqu'il n'y a aucun aimant, le module émet un signal d'environ 3,2 V lorsque le capteur détecte l'aimant, le signal passe à 0V
Je suppose que le signal sur un oscilloscope doit être un signal carré 3.3V - 0v - 3.3v - 0v et ainsi de suite à l'infini.
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#15
Exactly, this represents a square signal of 0-3.2 Volts. So I have the same result with my hall effect sensor.
Georges

Exact, cela représente bien un signal carré de 0-3.2 Volts. Donc j'ai le même résultat avec mon capteur à effet hall.
Georges
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#16
https://www.youtube.com/watch?v=uPvEfVSvmlg
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#17
Okay, I saw the video. Do you have 1 magnet or 2?
Georges
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#18
At the moment only 2 magnet . But my idea is 4 magnet
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#19
Ok, I think I have two notches on my puck to have two pulses per turn.
Georges

Ok, je pense faire deux encoches sur ma rondelle pour avoir deux impulsions par tour.
Georges
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#20
Georges, from the disque.jpg picture you put up and the sensor data sheet, I'm thinking your sensor will have 1 high signal and 1 low signal per revolution. That would be the equivalent of having 1 magnet to activate the 3144 Hall sensor. Just a thought.

Brian
Regards,
Brian
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