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I mean, these pictures show you how to use the integrated effects sensor, so your ability to contains

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a sensor that can detect a magnetic field and it can give you a reading that is analogous to the strength

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of the magnetic field on and around the sensor.

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You can get some information about the whole effect sensor here.

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So I'm looking at the micro python documentation under SB 32 general board control.

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And you see here there's a method called hole sensor, and that is part of the ESP three two module,

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just core this method and you'll get back a number.

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And the number, depending on how strong is the magnetic field around the sensor, a very simple script

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that shows you how to use this capability.

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So first, will import the SB 32 module, also import the time module so we can add a little bit of

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delay.

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And I've got an infinite loop that just printed out whatever values are coming out of the whole effect

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sensor.

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So I've got my ears to do nothing connected to it.

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And I've got a fridge magnet here to stimulate the whole effect sensor.

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So let's begin sketch uploaded and there's no indicating the ambient magnetic field, so don't have

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a magnet around it.

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I'm going to put the magnet over the casing of the ECB.

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Two, you can see that the value increases.

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So relatively weak magnets, you got up to about three hundred and ten, there's a reading going to

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turn the magnet upside down.

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You can see that I'm also getting smaller readings and you can even get negative readings depending

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on the orientation of the magnetic field.

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I also have a motor which has committed maggots in it, so I check it out, see if there's any effect.

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Very little effect, actually.

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With the magnets from the modem.

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All right, so that's pretty much it.

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You have a magnet lying around.

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This is a fun experiment to do.

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Very simple.

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No additional components needed.

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And why not?

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Also, you can try out the portal, which give you a visual representation of the magnetic field.

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Akko.

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And when I turn the magnet upside down, you can see that the magnetic field or the light actually drops

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as compared to the ambient about two hundred.

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It goes down to about 100.

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All right, let's move on to the next lecture where I show you how to use an integrated temperature

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system.