Hello,

I'm planning to use a Wheel Speed Sensor like:
- Hall Effect
- Reed Switch
- IR Sensor

To measure RPMs from a Vehicle Tires, my main problem is that I can't find any proper sensor to use it with a Raspberry Pi and I'm stuck looking for some related work on internet but without success

I hope you can help me with this issue, thanks!

Gif:

• https://slack-imgs.com/?c=1&url=htt...com/wp-content/uploads/Speedometer_Senser.gif

Here's a gif example from one of the websites that I found that talks bout the measurement using Reed Switch Sensor.
Website: https://standexelectronics.com/applications-markets/speedometer/

 

The ATS667LSG gear tooth sensor should do what you want. This is a link to the data sheet.
This will be simpler to use than a reed switch.

Les.

 

Hello,

I'm planning to use a Wheel Speed Sensor like:
- Hall Effect
- Reed Switch
- IR Sensor

To measure RPMs from a Vehicle Tires, my main problem is that I can't find any proper sensor to use it with a Raspberry Pi and I'm stuck looking for some related work on internet but without success

I hope you can help me with this issue, thanks!

Gif:

• https://slack-imgs.com/?c=1&url=https://standexelectronics.com/wp-content/uploads/Speedometer_Senser.gif

Here's a gif example from one of the websites that I found that talks bout the measurement using Reed Switch Sensor.
Website: https://standexelectronics.com/applications-markets/speedometer/

@Fabian Barraez I have done something very simply but with Arduino though. I used a hall sensor and a magnet to detect interrupts and calculate the RPM accordingly.

rpm = (1000/timetaken) * 60;

The complete details of the project is shown in the link below
https://circuitdigest.com/microcont...eter-using-arduino-and-processing-android-app

 

The first thing that comes to my mind is a reflective sensor. Just put some white spray paint on the tread and bounce light off the tire. That would work if you are doing a portable job, but won't work at all for a permanent installation.

 

What kind of tire? What kind of vehicle? If you have access to some sort of rotating shaft before the tire that would be a better place to look. There might be a balancing weight on something or some sort of flange that a prox switch may pick up. Magnets on tires start to be a bad idea with something a little faster than a bike. I know a guy who mounted a prox switch at the driveshaft yoke at the back of the trans to run an aftermarket speedometer.

 

Does the vehicle already have ABS sensors on it? If so you may be able to access the reluctor ring if it is exposed and place another sensor close to the ring.
If not you can obtain the gear tooth sensors from an Auto Wrecker cheap, or Honeywell sell them as a sensor unit.

Max.

 

Use the speed indicator sensor you know the size of wheel calculate the refs/min.
Picbuster