semiconductor said:
Yeah, exactly the last 2 tasks seem difficult. So at this time, ignore them. I want to concentrate on the first 3 tasks.
Control other devices directly is not difficult and I have already done one thing.
But Control other devices (i.e my table lamp, my TV, etc.) by using: AT89C51 + InfraRed or PC.
If you have any links or advices, please help me!
That is easy, if you want to use PC, then study Visual Basic or Visual C++, then study how to control your parallel port or serial ports, if too many devices to control, then multiplex the output.
Using 89C51, what are your inputs fo r the 89C51? Switches (mechanical) or IR (remote), then multiplex the output.