GPIO Pinout

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General Purpose Input Output (GPIO)

Resources:

  1. eLinux.org RPi Low-level peripherals
  1. 3.3 volt logic level and are not tolerant of 5V levels
  2. Each GPIO can interrupt, high/low/rise/fall/change.
  3. GPIO input hysteresis (Schmitt trigger) can be on or off, output slew rate can be fast or limited, and source and sink current is configurable from 2 mA up to 16 mA. Note that chipset GPIO pins 0-27 are in the same block and these properties are set per block, not per pin.


Color Legend

Color Legend
3.3 VDC PowerSerial Console/Power
5 VDC PowerHX711 Scale
GroundI2C Sensors
UnusedI2S Audio



J8 Header Signals

Hivetool
Reserved for I2C Sensors
Reserved for I2C Sensors
Reserved for I2C Sensors
Unused
Reserved for I2C Sensors
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Reserved I2S
Unused
Unused
R Pi
3.3 VDC Power
GPIO 2 I2C
GPIO 3 I2C
GPIO 4
Ground
GPIO 17
GPIO 27
GPIO 22
3.3 VDC Power
GPIO 10 SPIO MOSI
GPIO  9 SPIO MISO
GPIO 11 SPIO SCLK
Ground
I2C EEPROM ID_SD
GPIO 5
GPIO 6
GPIO 13
GPIO 19 PCM_FS
GPIO 26
Ground
J8
12
34
56
78
910
1112
1314
1516
1718
1920
2122
2324
2526
2728
2930
3132
3334
3536
3738
3940
R Pi
5 VDC Power
5 VDC Power
Ground
GPIO 14 TXDO
GPIO 15 RXDO
GPIO 18 PCM_CLK
Ground
GPIO 23
GPIO 24
Ground
GPIO 25
GPIO 8
GPIO 7
I2C EEPROM ID_SC
Ground
GPIO 12
Ground
GPIO 16
GPIO 20 PCM_DIN
GPIO 21 PCM DOUT
Hivetool
Reserved Power HX711
Reserved Power
Reserved Ground
Reserved serial console
Reserved serial console
Reserved I2S
Unused
Reserved HX711
Reserved HX711
Reserved HX711
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Reserved I2S
Reserved I2S




J8 ordered by Signal Name

SignalJ8
3.3 VDC Power1
3.3 VDC Power17
5 VDC Power2
5 VDC Power4
GPIO 2 I2C3
GPIO 3 I2C5
GPIO 47
GPIO 529
GPIO 631
GPIO 726
GPIO 824
GPIO 9 SPIO MISO21
GPIO 10 SPIO MOSI19
GPIO 11 SPIO SCLK23
GPIO 1232
GPIO 1333
GPIO 14 TXDO8
GPIO 15 RXDO10
GPIO 1636
GPIO 1711
GPIO 18 PCM_CLK12
GPIO 19 PCM_FS35
GPIO 20 PCM_DIN38
GPIO 21 PCM DOUT40
GPIO 2215
GPIO 2316
GPIO 2418
GPIO 2522
GPIO 2637
GPIO 2713
I2C EEPROM ID_SD27
I2C EEPROM ID_SC28
Ground6
Ground9
Ground14
Ground20
Ground25
Ground30
Ground34
Ground39
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