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- เผยแพร่เมื่อ 28 ก.ย. 2021
- This video will describe how to build a simple Hall Effect circuit using automotive sensors. A crankshaft position sensor will be used to detect ferrous objects in close proximity and trigger an output.
- วิทยาศาสตร์และเทคโนโลยี
That was good showing how the bias made it possible to detect an iron object that normally isn't magnetic enough to trigger the sensor.
Hall sensors are so popular that they are absolutely everywhere, because of that video was very useful. Thanks!
You're welcome!
Thank you very much for your extremely well made tutorials. I'm coming back to Forth after 20+ years when I didn't really persevere on a Rockwell 6502 Aim development kit to grasp it. Instead I wrote 6502 assembly code for work related "gadgets". Thank you once again !
The bias was interesting - was trying to use a hall sensor for triggering toggle states in a circuit, and this might help with some issues I was having.
The last round sensor is similar to the Speed sensor in my Harley Tranny. Great Video. Thanks for sharing.
Oh boy, how I love these videos !
PS your excellent Forth tutorials are the reason I'm returning to this elegant but neglected language
Glad the videos are helpful and thanks for the feedback. It's hard to tell who is following along. I have used the Rockwell R65F12 back in the day for product development, it served me well. With the new and powerful micros we have today Forth can really shine in the midst of all the new languages we have today.
Finally starting to understand IA forth.
Very interesting and useful video. Thanx.
Glad it was helpful!
Good video
Thanks for sharing
Good information; might be useful someday.
Did you have a transistor in the last example with the Arduino? Or was it just a pull-up to 5v? How much current can this source before needing a transistor?
Thank You
Welcome!
It would be really nice to have a tutorial on interfacing 16 x 2 serial LCD's using Forth. I did the parallel version years ago in 6502 Assembler but having some pointers for the i2c implementation on the Scamp2 board would be so useful. By the way it looks like the word modules is so useful in finding the address of i2c peripherals . Lastly there is a bit of a delay in the supply of the Scamp2 boards but I'm sure they are worth the wait.
I have Forth code for the Scamp2 to drive the LCD1602 display with the I2C piggyback board so a video is on my list. I am waiting for more Scamp boards to become available.
...nice!
Thanks!
Thank you ! Learnt something new today. Does this give a linear response co-relating with the proximity of the ferrous object ?
This is a threshold Hall effect sensor but there are also linear types. Check out this video for more info: th-cam.com/video/isYmSB3RqWM/w-d-xo.html
DEAR SIR , I would like to get a 12 volt puire sineswave signal from a 5 volt squarewave (hall signal of the crankshaft or camshaft of automobile ) , how to do that ?
Can it measure voltage and current? I need help for my project.
@0033mer Great to find videos where someone has had a similar idea/thinking.
The manual and automatic connectors are slightly different looking, how could I work out the pin out?
My version only has a small vertical ridge on one side, but no clip on the (top?)opposite side.
Unfortunately there are no standards on sensor pinouts among the car manufactures. You have to get the service manual from the car the sensors came from to get the pinouts. Also check online for ignition wiring diagrams.
@@0033mer I thought that would be the case. I'll continue looking . Thanks for the reply.
@0033mer can we have code and library can it be a momentary trigger instead of latching is possible that one trigger can be many pulses of ignition to mimic a lumpy cam or some other timing with crank timing I’m making a air compressed engine with a arduino, Hall effect, and relay or transistor to trigger a air valve solenoid can you share how the transistor circuit works
@0033mer look up at my comment
If you use a hallsensor with latch, for example the US1881, you dont need a mikro controller.
greetings nische.
I wanted to show a simple micro-controller interface for anyone who is interested. Latching Hall sensors are handy but you need a South pole magnet to latch and a North pole magnet to unlatch.