LED32-DB37
Contents
Features
- 32 LEDs
- 95mm wide (ODAS width) - 55mm depth matches other ODAS cards ODAS-PSOC5 (Rev X3 or higher), DIGIO32-I2C, etc
- DB-37 male connector
- (5) Ground pins (common ground)
- 3mm LEDs
- 6-32 mounting holes
Series resistor - let us know what value you want
- Series Resistor Values
- Pick a series resistor value assuming the LED forward voltage is about 2V.
- Operating with 3.3V will require a smaller resistance than operating at 5V for the same current.
- Standard series resistor values we carry are: 120, 150, 200, 220, 240, 270, 330, 470, 560, and 1K.
- For 5V operation and not too bright LED (comfortable value for front panels) we use 560 ohms.
- With 3V across 560 ohms that's only 5 mA (for 560 ohm resistor). For something with a lot of LEDs if they are too bright it can get annoying.
Wiring
- Male and female connectors are flipped
- Female from front
- Male from front
LED | DB37 Female | DB37 Male | LED | DB37 Female | DB37 Male | |
---|---|---|---|---|---|---|
GND | 1 | 19 | GND | 20 | 37 | |
0 | 2 | 18 | 16 | 21 | 36 | |
1 | 3 | 17 | 17 | 22 | 35 | |
2 | 4 | 16 | 18 | 23 | 34 | |
3 | 5 | 15 | 19 | 24 | 33 | |
4 | 6 | 14 | 20 | 25 | 32 | |
5 | 7 | 13 | 21 | 26 | 31 | |
6 | 8 | 12 | 22 | 27 | 30 | |
7 | 9 | 11 | 23 | 28 | 29 | |
8 | 10 | 10 | 24 | 29 | 28 | |
9 | 11 | 9 | 25 | 30 | 27 | |
10 | 12 | 8 | 26 | 31 | 26 | |
11 | 13 | 7 | 27 | 32 | 25 | |
12 | 14 | 6 | 28 | 33 | 24 | |
13 | 15 | 5 | 29 | 34 | 23 | |
14 | 16 | 4 | 30 | 35 | 22 | |
15 | 17 | 3 | 31 | 36 | 21 | |
GND | 18 | 2 | GND | 37 | 20 | |
GND | 19 | 1 |