LED-32
Revision as of 19:31, 18 June 2022 by Blwikiadmin (talk | contribs) (→Series resistor - let us know what value you want)
Features
- 32 LEDs
- 95mm wide (ODAS width) - 55mm depth matches other ODAS cards ODAS-PSOC5 (Rev X3 or higher), DIGIO32-I2C, etc
- 6-32 mounting holes
- 0.1" pitch connector, 2x20 pins, Connector could be mounted to the front or rear of the card
- (8) Ground pins (common ground)
- 3mm LEDs
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.
Pinout
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | GND | 2 | GND |
| 3 | GND | 4 | GND |
| 5 | LED0 | 6 | LED1 |
| 7 | LED2 | 8 | LED3 |
| 9 | LED4 | 10 | LED5 |
| 11 | LED6 | 12 | LED7 |
| 13 | LED8 | 14 | LED9 |
| 15 | LED10 | 16 | LED11 |
| 17 | LED12 | 18 | LED13 |
| 19 | LED14 | 20 | LED15 |
| 21 | LED16 | 22 | LED17 |
| 23 | LED18 | 24 | LED19 |
| 25 | LED20 | 26 | LED21 |
| 27 | LED22 | 28 | LED23 |
| 29 | LED24 | 30 | LED25 |
| 31 | LED26 | 32 | LED27 |
| 33 | LED28 | 34 | LED29 |
| 35 | LED30 | 36 | LED31 |
| 37 | GND | 38 | GND |
| 39 | GND | 40 | GND |
