Hi All,
Thanks "dknguyn" and "crutschow" for your inputs.
I am trying to create tray mechanism like we see for DVD players. I am not using a stepper motor, so in my circuit there is no microcontroller. Now there are two positions, tray and tray out. Now say if my tray is out and the power is shut down to the circuit then it would remain outside. When I provide power to the circuit it would assume that the tray is inside and would push the motor in outward direction. So I want to save the state so that i can use it to identify if the tray is out or in. Can you precisely tell me which chip I should be using to store the state permanently. I need a cheap and affective solution.
Regards,
Piyush.