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Prop. Clock Version 1
While browsing the web to see some LED based projects out there, I ran across Bob Blicks Site, He has all the information about
how to go about building your own Propeller Clock, I am not going to go over it again here.
and here are a couple more sites you might want to check out....
I ended up just doing a point to point solder on the PCB, I also used perfboard to mount the LED's to.
I had cut the metal bracket on the CNC plasma cutter with mounting holes for the PCB and the LED bracket that I machined on the Mill,
out of some 6/6 Nylon.
It took a bit to get all the LED's soldered on straight, but with some patience, I think I got it pretty close.
If your LED's are out of line or the spacing is not the same, you will notice this when the clock is spinning,
and displaying the digits. The above right photo shows the switches used to set the time. (you have to stop the clock from spinning,
then you have about 3 sec's to set the time.) Below right photo, you can see the 3 wires coming out of the motor for powering the clock.
I ended up using a PIR Sensor housing to use as the base for my Pic Clock( salvaged from an old alarm system),
I happen to have a small shaft coupler that fit the motors .125" Dia. shaft.
I used a 12VDC Gear Motor, but removed the gear housing and attached wires to the commutator points,
which I fed through the holes in the bearing spacer for the motor shaft. (Just like Bob's)
I also mounted a power switch on the base to turn the clock on and off with. And used a 12V wall wart to power it with.
The rectifying circuit on the board converts the alternating DC power coming from the
motors commutator points to power the clock circuit.
Because of the way I mounted some of the components on the PCB, and the way the LED's are mounted on the bracket,
when the clock is spinning, you can hear it whirring around, and it sure puts out some wind!
That's why I decided to build another clock to improve on the performance and try to quiet it down some.