Interfacing Relay Driver Circuit with PC.

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Hello all,

I am trying to interface relay driver circuit with PC in C#.

Relay driver ckt consists one microcontroller 89C2051.
Which takes serial i/p and and according to the serial i/p it controls the relays connected to it.

But i am not able to communicate with it.

If anybody knws ... Plz help.

Thanks in advance,

Posted 2-Apr-12 0:33am

yoyogesh

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Mike Hankey · Answer 1 · 2012-04-02T03:40:00

Solution 1

Need a little more info;
Show, describe or link for circuit.
How are you trying to communicate with the uController.

Posted 2-Apr-12 3:40am

Mike Hankey

Comments

yoyogesh 3-Apr-12 1:28am

I am serially communicating with the relay driver circuit.

I have the software to switch on/ off the relays ..and its working.

But i want to build a dll file for the same. Microcontroller is already programmed.

Also i would like to knw that hw will i send binary data in C#

Mike Hankey · Answer 2 · 2012-04-03T01:02:00

Solution 2

I have a project [^] where I use a serial application that talks to a uCOntrollers USART to produced a square wave of varying frequency and duty cycle. You might want to look at this project to get some ideas.

Good Luck

Posted 3-Apr-12 1:02am

Mike Hankey