can any body help me finding some approach to the design of a microcontroller based automatic washing machine timer
and what microcontroller can be used in this and with what sensors????
i guess the microchip picmcu will do the job well such as pic16f84a as standard washing machine timer is 15 mintues. the pic16f84a have timer register you can write a subroutine to have a desire delay time by using precaler register
Use a good microcontroller with ADC and enough I/O pins to support your application. Another things is, you will be needing a signal conditioner to interface your sensors to your ADC in any case rails does not match.
You can use original 220V sensors for pic.First of all diassemble everything.Then
you have to find sensors out -function cable,For example heater ,water level etc.Way easy to find test this out s.Have nice Day
Re: a microcontroller based automatic washing machine timer!
U can do this by a pic microcontroller. U need some buttons for program sellection. And thyristors for driving the asenkron motor of the washing machine