Difference between revisions of "GPIO Pinout"
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The first 26 pins on J8 (A+ and B+ models) are the same as H1 on the A and B models. | The first 26 pins on J8 (A+ and B+ models) are the same as H1 on the A and B models. | ||
<center> | <center> | ||
− | <table> | + | |
+ | |||
+ | <table> | ||
<tr> | <tr> | ||
<td> | <td> | ||
<table border=1> | <table border=1> | ||
− | <th>Hivetool | + | <th>Hivetool</th> |
<tr><td bgcolor="Yellow">Reserved for I2C Sensors</td></tr> | <tr><td bgcolor="Yellow">Reserved for I2C Sensors</td></tr> | ||
<tr><td bgcolor="Yellow">Reserved for I2C Sensors</td></tr> | <tr><td bgcolor="Yellow">Reserved for I2C Sensors</td></tr> | ||
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<td> | <td> | ||
<table border=1> | <table border=1> | ||
− | <th> | + | <th>R Pi</th> |
<tr><td bgcolor="orange">3.3 VDC Power</td></tr> | <tr><td bgcolor="orange">3.3 VDC Power</td></tr> | ||
<tr><td bgcolor="yellow">GPIO 2 <b>I2C</b></td></tr> | <tr><td bgcolor="yellow">GPIO 2 <b>I2C</b></td></tr> | ||
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<tr><td bgcolor="#cceecc">GPIO 22</td></tr> | <tr><td bgcolor="#cceecc">GPIO 22</td></tr> | ||
<tr><td bgcolor="orange">3.3 VDC Power</td></tr> | <tr><td bgcolor="orange">3.3 VDC Power</td></tr> | ||
− | <tr><td bgcolor="#cceecc">GPIO 10 | + | <tr><td bgcolor="#cceecc">GPIO 10 SPI MOSI</td></tr> |
− | <tr><td bgcolor="#cceecc">GPIO 9 | + | <tr><td bgcolor="#cceecc">GPIO 9 SPI MISO</td></tr> |
− | <tr><td bgcolor="#cceecc">GPIO 11 | + | <tr><td bgcolor="#cceecc">GPIO 11 SPI SCLK</td></tr> |
<tr><td bgcolor="#555555">Ground</td></tr> | <tr><td bgcolor="#555555">Ground</td></tr> | ||
<tr><td bgcolor="#cceecc">I2C EEPROM ID_SD</td></tr> | <tr><td bgcolor="#cceecc">I2C EEPROM ID_SD</td></tr> | ||
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<td> | <td> | ||
<table border=1> | <table border=1> | ||
− | <th> | + | <th>R Pi</th> |
<tr><td bgcolor="red">5 VDC Power</td></tr> | <tr><td bgcolor="red">5 VDC Power</td></tr> | ||
<tr><td bgcolor="red">5 VDC Power</td></tr> | <tr><td bgcolor="red">5 VDC Power</td></tr> | ||
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<tr><td bgcolor="#555555">Ground</td></tr> | <tr><td bgcolor="#555555">Ground</td></tr> | ||
<tr><td bgcolor="cceecc">GPIO 25</td></tr> | <tr><td bgcolor="cceecc">GPIO 25</td></tr> | ||
− | <tr><td bgcolor="cceecc">GPIO 8</td></tr> | + | <tr><td bgcolor="cceecc">GPIO 8 SPI_CE0</td></tr> |
− | <tr><td bgcolor="cceecc">GPIO 7</td></tr> | + | <tr><td bgcolor="cceecc">GPIO 7 SPI_CE1</td></tr> |
<tr><td bgcolor="cceecc">I2C EEPROM ID_SC</td></tr> | <tr><td bgcolor="cceecc">I2C EEPROM ID_SC</td></tr> | ||
<tr><td bgcolor="#555555">Ground</td></tr> | <tr><td bgcolor="#555555">Ground</td></tr> | ||
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<td> | <td> | ||
<table border=1> | <table border=1> | ||
− | <th>Hivetool | + | <th>Hivetool</th> |
<tr><td bgcolor="green">Reserved Power HX711</td></tr> | <tr><td bgcolor="green">Reserved Power HX711</td></tr> | ||
<tr><td bgcolor="blue">Reserved Power</td></tr> | <tr><td bgcolor="blue">Reserved Power</td></tr> | ||
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</tr> | </tr> | ||
</table> | </table> | ||
+ | |||
+ | |||
+ | |||
<br><br> | <br><br> | ||
H5 is only on the A and B models. GPIO 28-31 are not available on the + models. These signals should probably not be used. | H5 is only on the A and B models. GPIO 28-31 are not available on the + models. These signals should probably not be used. |
Revision as of 04:11, 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
The first 26 pins on J8 (A+ and B+ models) are the same as H1 on the A and B models.
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H5 is only on the A and B models. GPIO 28-31 are not available on the + models. These signals should probably not be used.
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GPIO ordered by Signal Name
Signal | Alt Function | J8 | H1 | H5 |
---|---|---|---|---|
3.3 VDC Power | 1 | 1 | 3 | |
3.3 VDC Power | 17 | 17 | ||
5 VDC Power | 2 | 2 | 1 | |
5 VDC Power | 4 | 4 | ||
GPIO 2 | I2C | 3 | 3 | |
GPIO 3 | I2C | 5 | 5 | |
GPIO 4 | 7 | 7 | ||
GPIO 5 | 29 | |||
GPIO 6 | 31 | |||
GPIO 7 | SPIO CE1 | 26 | 26 | |
GPIO 8 | SPIO CE0 | 24 | 24 | |
GPIO 9 | SPIO MISO | 21 | 21 | |
GPIO 10 | SPIO MOSI | 19 | 19 | |
GPIO 11 | SPIO SCLK | 23 | 23 | |
GPIO 12 | PWM | 32 | ||
GPIO 13 | 33 | |||
GPIO 14 | TXD | 8 | 8 | |
GPIO 15 | RXD | 10 | 10 | |
GPIO 16 | 36 | |||
GPIO 17 | 11 | 11 | ||
GPIO 18 | PCM_CLK | 12 | 12 | |
GPIO 19 | PCM_FS | 35 | ||
GPIO 20 | PCM_DIN | 38 | ||
GPIO 21 | PCM DOUT | 40 | ||
GPIO 22 | 15 | 15 | ||
GPIO 23 | 16 | 16 | ||
GPIO 24 | 18 | 18 | ||
GPIO 25 | 22 | 22 | ||
GPIO 26 | 37 | |||
GPIO 27 | 13 | 13 | ||
GPIO 28 | I2C0_SDA | 3 | ||
GPIO 29 | I2C0_SCL | 4 | ||
GPIO 30 | 5 | |||
GPIO 31 | 6 | |||
I2C EEPROM ID_SD | 27 | |||
I2C EEPROM ID_SC | 28 | |||
Ground | 6 | 6 | 7 | |
Ground | 9 | 9 | 8 | |
Ground | 14 | 14 | ||
Ground | 20 | 20 | ||
Ground | 25 | 25 | ||
Ground | 30 | |||
Ground | 34 | |||
Ground | 39 |