help regarding propeller clock circuit

I'm not quite sure I understand what you ask. The design _does_ use push buttons on the static base. The IR is only used to connect these buttons on the base to the rotating "hands" circuit.

Not hard. It just needs 5V and 12V rails. Use a 12V plug in the wall style mains adaptor to make 12V. Then a three pin linear regulator like the 7805 to make the 5V from the 12V rail.

IR

push

buttons on

thanks.that means there 2 sets of IR/photodetector.one is for indexing and other must be to switch modes(analog/digital)and set time.the base circuit he provided

is little confusing.(where is power supply terminal,motor terminal etc).i will be thankful if some one can simply it(and can mail it). and he said it has buit in pulser.that mean can i connect a HDD motor to drive it. thanks onece again for ur replies fever

I have built one of these before

To send information to the propeller clock while it is spinning, you could have an IR detector located on the center of the the board, that way while its spinning it stays in the same place. If you dont want to cover up the front of your clock you could place the IR sensor on the back side (only if you motor's rotor sticks out on both ends...another way, would be to use radio communication, but I havn't tried this yet and the IR detectetor would work great any way. Connecting your detector to op amps could allow you to control it remotely across a room!

I also had a hard time with power... I liked the idea of the rotary transformer but ended up using a strip of brass with steel wool brush... It was inexpensive to make and was extremely quiet...I don't know how long this would last though.. but it still works for me. I grounded the out casing of the motor which made the shaft grounded. Then i I only had to make one brush to carry the positive side. So I put a plast tube around the metal shaft (as an insulator) and then around it I put a metal tube which the brush rests on (the brass acts as a spring). The only problem was that contact was 100 percent of the time, but an electrolytic capacitor buffered it out perfectly... even for the microcontroller.

There are _3_ IR recievers.....

1) mode 2) time. 3) Index sensor

They are marked on this circuit..

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This circuit controlls the motor...

The motor is connected to the signals at the top left.

Ask the designer what type of motor you need.

thanks guys.u really helped me a lot i agree power supply is a big problem here.i connect -ve to motor shaft and using a bearing to connect +ve.u shld apply some non conducting media between shaft of motor and bearing.(like tape) the problem iam facing with base circuit is,author did't mentioned the components and connections in his pcb diagram properly.

this is base circuit pcb diagram.can u guys help me in identifying the components.(u can edit this).

and i mailed a lot of times to author for help.but he did't replied.so iam asking u guys for help.

thanks once again fever