This video will describe how to use the very inexpensive Threshold and Linear type Hall Effect Switches in your circuit design. They can be used stand-alone or together with your Arduino Nano.
I liked this video. There's more than one hall effect monitor video on youtube, but none of them really get into detail about how each of the hall effect monitor's are different. An average video tells you roughly how it works, but few of them tell you what the difference between a linear vs threshold hall effect monitor is. I'm thinking i might be able to use a hall effect monitor to flip a transistor switch almost as fast as a pwm signal in a very specific application, but i saw a guy doing his pwm thing the other day and I'm not so sure. At anyrate, thank you for the good video, and i hope you get more attention, and thus more advertising dollars, for it.
Another useful video. I was wondering about how the hall effect sensed gear teeth reliably. I was thinking maybe the gear was magnetized. So you cleared that up for me too. Thanks
very useful and didactic thanks i want to control modern coil on plugs on an old Mercedes W201 electromagnetically from the delco and maybe later the injection by adding delayed outputs whith an arduino board but i don't know wich one to choose
FYI with some linear hall effect switches you might have to use a Opamp based voltage follower to be able to inject a big enough voltage into the Arduino's ADC pins. I delt with that with an attempt to building a digital amp meter using a hall effect switch and a ferrite core. The project worked but the resolution was crap.
could you please provide a schematic of the circuit? what are the values of the resistors? and what is the value of the yellow bulb (im assuming its a capacitor)? i am new to electronics and am going to try and wire up this circuit. thanks for all the help!
Electronic NOOB question: Could this OH49E transistor and other discrete components be assembled on a board, and used [somehow] to detect short circuits, on a pcb WITHOUT any Arduino device?
Hello. I'm looking for an hall effect that will output 5v (vcc)when near south pole, and about 0v when near north pole. It is for an dc motor for toy car. So when senor is near south it will go full throttle and when let off the pedal, the senor will be at north pole and 0v so the motor will fully stop. Right now I'm using the 49e hall sensor and when let off the pedal it is still output about 0.86v to the speed controller so the motor doesn't quite stop. Can you recommend the correct hall effect?
If you are writing the code to interpret the millivolt input, you could just multiply the input values by whatever method you want (square, cube, any other exponent) to achieve the same effect, right?
Your diagram showed the magnet behind the sensor with the turning gear on the other side. Your actual sensor seemed to have a magnet between the sensor and the gear. Am I right? If so, then does the position of the magnet with respect to the gear and sensor matter much?
Yes .. the position of the magnet and its strength with respect to the gear and sensor matters. The magnet creates a bias on the sensor so it can detect a ferrous object. This video will demonstrate the relationship. th-cam.com/video/9wyeogsahag/w-d-xo.html
Check out my relay driver video schematic at the 4 min mark and connect the Hall sensor to input #2. This is a high side switcher using a PNP output. th-cam.com/video/Ogbj6g05Hvg/w-d-xo.html
I find dozens of wiring diagrams for connection to an ardino but none for connecting to a mach 3 BOB, is that they cannot act like a Normally Closed switch, or they just don’t work on my type system. I really need a wiring diagram for my system. Thanks.
Use a small double throw relay with the Normally Closed contacts connected to your board. When the Hall Effect switch turns on it can drive the relay and open the contacts.
There is no sketch. I program in Forth and assembler. Here is the code: : LED.toggle \ toggle LED on Hall detect BEGIN Pin2 Low? \ GPIO input pin IF Pin13 toggle \ toggle LED on Nano Begin Pin2 High? Until THEN AGAIN ;
@0033mer on time index 4:04 why is your resistor on the 5v in before the led, and not after the led? And also, why are you using 5v to drive a 3.3v led? Shouldn't you have a voltage divider? simple questions, but I'm just coming back to this stuff and its a bit confusing. Thank you.
The resistor and LED are in series where the current through the LED and the resistor is the same. The position of the resistor does not matter. You can drive a LED with any voltage as long as the series resistor limits the current below the max rated LED current.
The A3144 Hall switch has a very loose threshold tolerance compared with other ones like the A3141 to A3143. Is that why they seem to be the cheapest and most widely available one? The gauss threshold is a 7x spread from lowest to highest. I needed one with higher sensitivity and lower on resistance to match one from an LG ice maker tray position sensor, but the A3144 ones I bought were not as sensitive or low on resistance as the original, so I didn't try using them.
The A3144 together with the A3141/42/43 originally manufactured by Sprague then Allegro are discontinued so any devices you find will be knock-offs. An equivalent is SS441A by Honeywell. The sensitivity is fixed on threshold sensors. If you want to adjust the sensitivity you must use a linear sensor with appropriate circuitry. Check out this video: th-cam.com/video/72CGYTzAX0E/w-d-xo.html
The German mathematician's last name does rhyme with 'mouse' as you stated but in Canada (and France) both ways are accepted. The French influence makes 'au' pronounced as 'o'. Lots of debate on You Tube with Piezo, solder, 'Z' (ZED) ....
Yes the German mathematician name Gauss rhymes with house. If you had a French or Asian professor you would get different pronunciations. www.howtopronounce.com/french/gauss/ Either way I'm sure everybody understood.
Clear and concise explanation..
I love this vid
Glad it helped!
Really great summary and demo of digital and analogue Hall effect sensors!!
Thanks a bunch, this is the best Hall effect training I have seen .
Thanks for the feedback.
If you are interested I have another video on Hall Effect circuits:
th-cam.com/video/72CGYTzAX0E/w-d-xo.html
Excellent demonstration. Thank you.
I liked this video.
There's more than one hall effect monitor video on youtube, but none of them really get into detail about how each of the hall effect monitor's are different.
An average video tells you roughly how it works, but few of them tell you what the difference between a linear vs threshold hall effect monitor is.
I'm thinking i might be able to use a hall effect monitor to flip a transistor switch almost as fast as a pwm signal in a very specific application, but i saw a guy doing his pwm thing the other day and I'm not so sure.
At anyrate, thank you for the good video, and i hope you get more attention, and thus more advertising dollars, for it.
Another useful video. I was wondering about how the hall effect sensed gear teeth reliably. I was thinking maybe the gear was magnetized. So you cleared that up for me too. Thanks
Great video thanks with helpful practical demos of both digital and linear devices.
Very welcome!
Great video. Exactly the info I was looking for, and presented very clearly for arduino noobs like myself. Thanks :)
You are welcome!
very useful and didactic
thanks
i want to control modern coil on plugs on an old Mercedes W201 electromagnetically from the delco
and maybe later the injection by adding delayed outputs whith an arduino board but i don't know wich one to choose
Thanks bro...I learnt to use it after your video
FYI with some linear hall effect switches you might have to use a Opamp based voltage follower to be able to inject a big enough voltage into the Arduino's ADC pins. I delt with that with an attempt to building a digital amp meter using a hall effect switch and a ferrite core. The project worked but the resolution was crap.
Very nice! Great video.
Awesome video!
very well detailed explanation. Thanks.
You're welcome. Thanks for the feedback.
could you please provide a schematic of the circuit? what are the values of the resistors? and what is the value of the yellow bulb (im assuming its a capacitor)? i am new to electronics and am going to try and wire up this circuit. thanks for all the help!
you talk loud, that's good ! in other videos they just put me to sleep lol
Electronic NOOB question: Could this OH49E transistor and other discrete components be assembled on a board, and used [somehow] to detect short circuits, on a pcb WITHOUT any Arduino device?
Hello. I'm looking for an hall effect that will output 5v (vcc)when near south pole, and about 0v when near north pole. It is for an dc motor for toy car. So when senor is near south it will go full throttle and when let off the pedal, the senor will be at north pole and 0v so the motor will fully stop. Right now I'm using the 49e hall sensor and when let off the pedal it is still output about 0.86v to the speed controller so the motor doesn't quite stop. Can you recommend the correct hall effect?
Nice video im looking into some joystick applications. Thanks
You're welcome.
I'm Doing a proyect with just magnets, it's a magnetic shifter pattern H and to the switches I'm gonna use this system.
Very good video
Thanks for the visit
Hi. Do You know if there exists a say quadratic, cubic or exponential hall sensor?
Thank You
If you are writing the code to interpret the millivolt input, you could just multiply the input values by whatever method you want (square, cube, any other exponent) to achieve the same effect, right?
Your diagram showed the magnet behind the sensor with the turning gear on the other side. Your actual sensor seemed to have a magnet between the sensor and the gear. Am I right? If so, then does the position of the magnet with respect to the gear and sensor matter much?
Yes .. the position of the magnet and its strength with respect to the gear and sensor matters. The magnet creates a bias on the sensor so it can detect a ferrous object. This video will demonstrate the relationship. th-cam.com/video/9wyeogsahag/w-d-xo.html
is there a way to do it as a PNP normal open ? what will change in the wiring ? thanks
Check out my relay driver video schematic at the 4 min mark and connect the Hall sensor to input #2. This is a high side switcher using a PNP output. th-cam.com/video/Ogbj6g05Hvg/w-d-xo.html
@0033mer thanks for your fast reply
I find dozens of wiring diagrams for connection to an ardino but none for connecting to a mach 3 BOB, is that they cannot act like a Normally Closed switch, or they just don’t work on my type system. I really need a wiring diagram for my system.
Thanks.
Use a small double throw relay with the Normally Closed contacts connected to your board. When the Hall Effect switch turns on it can drive the relay and open the contacts.
@@0033mer thanks that would be one way of doing it
it would be great if you provide demo code as well .
There is no sketch. I program in Forth and assembler. Here is the code:
: LED.toggle \ toggle LED on Hall detect
BEGIN
Pin2 Low? \ GPIO input pin
IF Pin13 toggle \ toggle LED on Nano
Begin Pin2 High? Until
THEN
AGAIN ;
How fast is this
@0033mer on time index 4:04 why is your resistor on the 5v in before the led, and not after the led? And also, why are you using 5v to drive a 3.3v led? Shouldn't you have a voltage divider? simple questions, but I'm just coming back to this stuff and its a bit confusing. Thank you.
The resistor and LED are in series where the current through the LED and the resistor is the same. The position of the resistor does not matter. You can drive a LED with any voltage as long as the series resistor limits the current below the max rated LED current.
Thanks for the feed back, it helped me..
The A3144 Hall switch has a very loose threshold tolerance compared with other ones like the A3141 to A3143. Is that why they seem to be the cheapest and most widely available one? The gauss threshold is a 7x spread from lowest to highest. I needed one with higher sensitivity and lower on resistance to match one from an LG ice maker tray position sensor, but the A3144 ones I bought were not as sensitive or low on resistance as the original, so I didn't try using them.
The A3144 together with the A3141/42/43 originally manufactured by Sprague then Allegro are discontinued so any devices you find will be knock-offs. An equivalent is SS441A by Honeywell. The sensitivity is fixed on threshold sensors. If you want to adjust the sensitivity you must use a linear sensor with appropriate circuitry. Check out this video: th-cam.com/video/72CGYTzAX0E/w-d-xo.html
!=goss, =gauss
It's pronounced 'gowz' or 'gow-se', as in cow except with a 'g', not as you pronounce it...Useful info though. Thanks.
The German mathematician's last name does rhyme with 'mouse' as you stated but in Canada (and France) both ways are accepted. The French influence makes 'au' pronounced as 'o'. Lots of debate on You Tube with Piezo, solder, 'Z' (ZED) ....
It's not "Goss", it's pronounced "Gouse" - it rhymes with "house".
Yes the German mathematician name Gauss rhymes with house. If you had a French or Asian professor you would get different pronunciations. www.howtopronounce.com/french/gauss/
Either way I'm sure everybody understood.
@@0033mer Is your accent an Israelish accent.