One major modification of Bob Blick's design is providing power to the spinning assembly. I finally gave up and bought a kit programmer that was not very good either but after fiddling with the software, I managed to program a PIC successfully. I originally built over five homemade programmers with various software available over the internet, all of which failed to program the PIC. I'd have to admit that the programming end of things was more difficult than building the clock itself in the beginning. The first design of the clock was mainly a clone of Bob Blick's propeller clock along with a few modifications of mine. The persistence of vision (POV) propeller clock is one of the most neat projects to build using a PIC or some other low cost microcontroller. Solders mentioned are inside the red box.Interested in building a persistence of vision clock or display? Buy the Catahoula Technologies POV Display kit. The top right hole (the 2nd resistor) should be soldered to the wire strand that connects to the middle strand of the transistor. The two solders at the bottom should be soldered from the hole they come out of. From the picture's perspective: The top left hole (1st resistor) the resistor goes through should be soldered to the Digital 10 pin.Find 10k ohm picture and look at it's location.Solder the wire to the solder made in step 3 and to the top resistor solder/strand.The wire should be long enough to connect the solder from step 3 to the top transistor solder/strand. Cut a piece of wire and strip both ends (small strip lengths).Solder the other resistor leg to the middle pin of the transistor.Solder one side of resistor to top right leg/strand of the optical sensor.Find 1k ohm picture and look at its location.For reference: Blue box = 5 volt pin Red box: The solders of the 100 ohm resistor.Solder the wire from the hole of step 4 to the 5 volt pin.I provided a picture referencing my nano's location. Its length is the distance from the solder of step 4 and the 5volt pin. Cut and strip both ends (strips should be short) of a wire.Solder the hole that the other end of the resistor comes out of.Solder one end of resistor to the right bottom strand/leg of the optical sensor.Find 100 ohm picture and look at its location.*look at notes on pictures to determine the correct picture* If they do not, this means some of your digital pins are sharing connections! It is fixable applying heat from the soldering iron is usually able to eventually separate the connections, but it is not an easy process. Each LED should light of independently of each other. ![]() Make sure to use the test code attached (it's the same as the test code provided earlier).
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