Cytron Technical Forum

how to measure speed using rotary encoder that i bought from cytron?


i am using IC PIC16F877A..

if i do a loop program for example:

int i=0;

i=i+1;

and i let the program count it

in 1 second,what is the possibly the value of i?

because i want to compare the value of i with the value of signal receive from rotary encoder in 1 second.

what's the exact rotary encoder u bought? The value u'll get is highly depending on the type of encoder u r using and the rotation speed.

That is rotary encoder give 5000 pulse per rotation.
Then you count how many pulse in 1s. ex give X value. Count 1s using interrupt.
After that, calculate rotation per second by
X pulse per second divide 5000 pulse per rotation.

After you get the pulses per second, you need to convert into distance per second if you are calculating distance speed for example m/s.