Motor speed feedback to microncontroller


Thread Starter


hi, i'm doing a project that use the microcontroller to control a motor speed that able to let the motor drive in the constant speed to help the small truck model run throughout the journey and even the uphill and downhill.

I'm using PIC microcontroller which the model is PIC16F877. My purpose is to ask more opinions from the audiences out ther. First, how to sense the motor speed so that the motor speed can feedback to the microcontroller (PIC16F877). Izzit using the tachometee pick up sensor? the tachometer pick up sensor i mean is using the LED as light source and phototransistor as detector.May i know where to find more information about this thing from the internet source? pls kindly help me.