Brad from Brads Electronic Projects shows us how to make 8 RGB LEDs create a large circular display. He uses a spread sheet to create the HEX data that the PIC microcontroller will be using to turn on the RGB LEDs to make the system display what you would like but the display data is stored on an EPROM to allow for large moving displays. Reminds me a bit of my POV Display that I made many moons ago, only thing is that Brad’s is about 100 times better. 🙁
“Parts List
8x Common Cathode RGB LEDS (5mm)Â
1x 16f648a or 16f628a microcontrollerÂ
5x 74373 tri-state buffers / latchesÂ
1x 27C512 / 27E512 EPROM / EEPROMÂ
1x IR LEDÂ
1x Photo DiodeÂ
1x 2n2222 NPN TransistorÂ
24x 100 ohm resistorsÂ
4x 10k resistorsÂ
1x DC motor”
