@ecgjerde wrote:
Do stm32 have any products wich works as a plug and play speedometer.
No.
They are general-purpose microcontrollers - you would have to develop your own software & hardware.
You would need some sort of sensor, and software to interpret the sensor's output.
Common sensors include
- Wheel rotation sensors - give pulses at a rate proportional to speed
- GPS - usually give speed (or even velocity) directly
- Radar
- Ultrasonic
- optical
You would need to give more information for any specific help.
How to write your question to maximize your chances to find a solution
A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.
