Hi Sekar,

Interesting. Coding for AC plant using C sharp in .net platform. I suppose you have already located the software tools. Why not code in simple C as applicable to MCUs ? In which case the support and tools that you have available ( both for a charge as well as free )are quite enormous. Just give it a thought.



The above question kind off indicates that you need to beef up on your hardware skills. To answer your question , you interface the analog data to the MCU with a A-to-D convertor also known as a ADC. Get to know more about ADC s from sites of Analog Devices, Burr Brown , Intersil and Maxim.



rtos = Real Time Operating System. My sincere advice at this stage is to stay AWAY from rtos. Your AC plant control can be made as efective as any without screwing around with a rtos kernel and such. ( I vaguely remember that RTOS was used by projects like the Mars Rover. Is our project in the same league ?...)

I really feel you should spend good time with the tutorials on this page on 8051 , understand the MCU , have all its SFR , memory structure by heart and then come back with specific doubts.

PS: Not to worry. After all of the above, a simple AC plant control is childs play for an 8 bit MCU.

Good luck

Raghu