Several electronic questions (schematics and calculations)?

Question

Hi,

I have 2 D-cell batteries. How many V and A does it produce?

I have a circuit (from a robot toy) that looks something like this:

http://aug18.imghost.us/7xVa.jpg (the one in the box labeled A).

The circuit can switch between the three states (as can be seen in boxes labeled A,B and C). The circuit is powered by 2 D-cell batteries and powers a simple motor.

What I want to do now is: I have 2 wires, each are either off or on. When they are on, they produce 5V and 40mA each. I want to modify the switches (labeled in X,Y,Z) and the switches only that when one of the wire is on and the other is off, the circuit becomes in the B-state and if one of the wire is off and the other is on, the circuit becomes the C-state. And when both wires are off or both of them are on, the circuit becomes the A-state. How do I do this and what do I need to do this? What components do I need? Im really bad at calculating and designing electrical circuits.

Can anyone help?

Thanks!

Answer 1

D Cells generally make 1.5V. Current capability is much greater than 40mA. For details, google "wiki D cell" or similar. Manufacturer websites from their links give detailed datasheets.

I can't see your link: I just get the IMG Host site. Should be simple matter to connect switches though. Only question is what type of switch(es) do you need. You should re-post.