Difference between revisions of "GPIO Pinout"
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Revision as of 02:35, 22 January 2015
Contents
General Purpose Input Output (GPIO)
Resources:
Notes:
- GPIO pins are 3.3 volt logic levels and are not tolerant of 5V levels
- GPIO properties can be set as a block (GPIO pins 0-27 are in the same block) not per pin.
- Can interrupt based on high/low/rise/fall/change.
- Input hysteresis (Schmitt trigger) can be on or off,
- Output slew rate can be fast or limited, and
- Source and sink currents are configurable from 2 mA up to 16 mA.
Color Legend
| Color Legend | |
|---|---|
| 3.3 VDC Power | Serial Console/Power |
| 5 VDC Power | HX711 Scale |
| Ground | I2C Sensors |
| Unused | I2S Audio |
GPIO ordered by Header Pins
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J8 ordered by Signal Name
| Signal | J8 |
|---|---|
| 3.3 VDC Power | 1 |
| 3.3 VDC Power | 17 |
| 5 VDC Power | 2 |
| 5 VDC Power | 4 |
| GPIO 2 I2C | 3 |
| GPIO 3 I2C | 5 |
| GPIO 4 | 7 |
| GPIO 5 | 29 |
| GPIO 6 | 31 |
| GPIO 7 | 26 |
| GPIO 8 | 24 |
| GPIO 9 SPIO MISO | 21 |
| GPIO 10 SPIO MOSI | 19 |
| GPIO 11 SPIO SCLK | 23 |
| GPIO 12 | 32 |
| GPIO 13 | 33 |
| GPIO 14 TXDO | 8 |
| GPIO 15 RXDO | 10 |
| GPIO 16 | 36 |
| GPIO 17 | 11 |
| GPIO 18 PCM_CLK | 12 |
| GPIO 19 PCM_FS | 35 |
| GPIO 20 PCM_DIN | 38 |
| GPIO 21 PCM DOUT | 40 |
| GPIO 22 | 15 |
| GPIO 23 | 16 |
| GPIO 24 | 18 |
| GPIO 25 | 22 |
| GPIO 26 | 37 |
| GPIO 27 | 13 |
| I2C EEPROM ID_SD | 27 |
| I2C EEPROM ID_SC | 28 |
| Ground | 6 |
| Ground | 9 |
| Ground | 14 |
| Ground | 20 |
| Ground | 25 |
| Ground | 30 |
| Ground | 34 |
| Ground | 39 |
