Testing Digital Output from Magnet Sensor

Other Hardware Sensors
1

Hello all!

I have a couple AFL006 magnet sensors that I am trying to test out in a simple circuit and not having any luck. The data sheet is here. I also hand soldered the tiny smd with no legs which maybe is the issue. Maybe I should use a hotplate.

But anyway. I have the Vcc and the out connected to a DC bench top power source at 2V. I'm trying to use a voltmeter to read changes to the output pin when I move a magnet near it. I think based on the datasheet the out should be 0.2v and 100uA. And output is sinking. Is there a better way to test that this switch is working than with a voltmeter? Could I use a transistor and an LED? Should I use a microcontroller to try to read the output pin?

Thanks,
Sarah

2

I also hand soldered the tiny smd with no legs which maybe is the issue.

I don't believe you can hand solder the versions without legs. It's difficult enough to solder such chips in a reflow oven if you have to place them by hand.

Is there a better way to test that this switch is working than with a voltmeter?

There may be better ways but you should be able to test it with a (good) voltmeter. But you have pull the output high (p.e. a 20kΩ resistor). The voltage should fall to almost zero if you hold a magnet near the chip.

3

svitak:
I have a couple AFL006 magnet sensors that I am trying to test out in a simple circuit and not having any luck. The data sheet is here. I also hand soldered the tiny smd with no legs which maybe is the issue. Maybe I should use a hotplate.

I have checked the datasheet and its tool small, if you are soldering it with hand then you might have burnt it already.

svitak:
But anyway. I have the Vcc and the out connected to a DC bench top power source at 2V. I'm trying to use a voltmeter to read changes to the output pin when I move a magnet near it. I think based on the datasheet the out should be 0.2v and 100uA. And output is sinking. Is there a better way to test that this switch is working than with a voltmeter? Could I use a transistor and an LED? Should I use a microcontroller to try to read the output pin?

You can connect the output pin with any analog pin and can use analogRead Arduino Command and then check its output on Arduino Serial Monitor, that would be better as compared to voltmeter.

4

You can connect the output pin with any analog pin of Arduino and then check its output on Serial Terminal, that would be better as compared to voltmeter.

Wrong, it won't show anything, the pin is floating most of the time.