how to use PIC16f877A to control servomotor

[vijindran]

mikroc servo control

hai..

i'm using PIC16f877A with 4Mhz crystal..now i'm using 5 servo motors at PortB as out put.. i dono how to control the motor using pulse..and how to calculate the pulse for the motors.... i need algorithn for the motors in asssembly language..any1 can help me? thnx in advance..

 

[gwn]

crystal 16f877a servo motor

as u can see on the internet most of the servo motors turn most left with 1ms pulses, most right with 2 ms pulses. u can use timer of pic16f877 to obtain the pulse durations. to turn the servo most left, u have to make pin high and wait for 1ms, then make pin low and then wait for about 20 ms. u have to give this pulse train many times ( for example 30 times)...

i have no code example in assembly language.. i am using hitech pic c.. but u can find many source codes on the internet..

 

[vijindran]

mikroc servo

can u send me the code in c langugage ah?

 

[faraz101]

control de un servomotor con un pic 16f877a

i used mikro c comiler for pic and just drive 1 servo with f84.
i just turn the output pin to high and low for the duration of 1ms and 2.2ms.
mikroc uses the delay_ms(1000); command for delay b/w hogh and low time.

 

[abidr]

pic servomotor en pic c

I have my doubt that anybody would do the entire thing for you, I guess I have put up sample codes in PIC Basic Pro in another thread.
Faraz101 has given a good hint of doing the same in MiKroC.
Why dont you give it a try yourself and post the results here, that way you will learn yourself and other will be able to help you out.

 

[Solis]

servo motor mikroc

Use interrupt timer to control duty cycle of pulse signal