Difference between revisions of "RGB clock"
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The PCB is equipped with a bitwizard-standard 20-pin IO connector, designed to work together with our USB-multio PCB, but it is also possible to connect our FTDI-ATmega, USB-bigmultio or Cyclone dev board, or one of your own boards. |
The PCB is equipped with a bitwizard-standard 20-pin IO connector, designed to work together with our USB-multio PCB, but it is also possible to connect our FTDI-ATmega, USB-bigmultio or Cyclone dev board, or one of your own boards. |
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== Assembling the kit == |
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== External resources == |
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== Pinout == |
== Pinout == |
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Revision as of 17:22, 9 January 2012
RGB clock
This is the documentation page for the RGB clock kit.
Overview
Driver PCB for up to 64 common-anode RGB LEDs, or 192 normal LEDs. The PCB is designed for 1:3 multiplexing of the LEDs, and is equipped with 8 74HC595 shift registers (configured as 4 16-bit deep registers), 64 current-limiting resistors (220 Ohm by default) and 3 FETs to switch the cathode groups on-and-off. The PCB is equipped with a bitwizard-standard 20-pin IO connector, designed to work together with our USB-multio PCB, but it is also possible to connect our FTDI-ATmega, USB-bigmultio or Cyclone dev board, or one of your own boards.
Assembling the kit
External resources
Pinout
SV10 is connected as follows
| 1 | GND |
| 2 | GND |
| 3 | SER0 |
| 4 | SER1 |
| 5 | SER2 |
| 6 | SER3 |
| 7 | !OE |
| 8 | LATCH |
| 9 | RESET |
| 10 | CLOCK |
| 11 | R |
| 12 | G |
| 13 | B |
| 14 | external clock source |
| 15 | IO1 |
| 16 | IO0 |
| 17 | IO3 |
| 18 | IO2 |
| 19 | VCC |
| 20 | VCC |
SV1 through SV8 are connected as follows:
| 1 | A0 |
| 2 | A1 |
| 3 | A2 |
| 4 | A3 |
| 5 | A4 |
| 6 | A5 |
| 7 | A6 |
| 8 | A7 |
| 9 | R |
| 10 | G |
| 11 | B |
| 12 | GND |
SV9 can be used to connect an external clock source, or a servo motor, or...
| 1 | GND |
| 2 | VCC |
| 3 | connected to pin14 form SV10 |
- D2 is connected to VCC from SV10
- D3 is connected to USB power
- D4 is connected to pin17 from SV10
- D5 is connected to pin18 from SV10
- D6 is connected to pin15 from SV10
- D7 is connected to pin16 from SV10
- Switch1 (next to R71) is connected to pin16 from SV10
- Switch2 (next to R72) is connected to pin15 from SV10
- Switch3 (next to R73) is connected to pin18 from SV10
- Switch4 (next to R74) is connected to pin17 from SV10
Jumper settings
JP1: Power supply selection. Open: LED driver board and microcontroller board have individual powersupplies Closed: VCC from LED driver board and microcontroller board are connected.
Future hardware enhancements
- Replace 2 12-pin connectors by 1 20-pin connector
- Add numbers to the pushbutton switches
The software
Changelog
1.0
- Initial public release