A Raspberry Pi daemon to drive a 32x16 red/green LED matrix. These things arrive as a kit, so some careful surface mount soldering skills are needed.
This board should be able to simulate (with PWM or BCM) the red-green color space as below:
| Board Pin | Name | Remarks | RPi Pin | RPi Function |
|---|---|---|---|---|
| 1 | GND | Ground | 6 | GND |
| 3 | GND | Ground | 6 | GND |
| 5 | GND | Ground | 6 | GND |
| 7 | OE | 74HC595 Output Enable (Active Low) | 11 | BCM 17 |
| 9 | R | data input for 74HC595 (RED section / 4*74HC595) | 19 | BCM 10 |
| 11 | VCC | +5V Power | 2 | 5V0 |
| 13 | GND | Ground | 6 | GND |
| 15 | GND | Ground | 6 | GND |
| 2 | A | row select with 74HC138 | 15 | BCM 22 |
| 4 | B | row select with 74HC138 | 16 | BCM 23 |
| 6 | C | row select with 74HC138 | 18 | BCM 24 |
| 8 | D | row select with 74HC138 | 22 | BCM 25 |
| 10 | G | data input for 74HC595 (GREEN section / 4*74HC595) | 21 | BCM 9 |
| 12 | VCC | +5V Power | 2 | 5V0 |
| 14 | STB | 74HC595 Strobe / Data Latch | 24 | BCM 8 |
| 16 | SCK | 74HC595 Clock Input | 23 | BCM 11 |
- http://www.ebay.co.uk/itm/351368537705
- http://www.embeddedadventures.com/datasheets/LDP-6416.pdf
- http://www.instructables.com/id/32x16-LED-Matrix-Panel-and-Arduino/
Copyright (c) 2017 Richard Hull
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