raspberry pi 2 b pinout
The figure above shows the default LINX mapping for the 40-pin GPIO header on the Raspberry Pi 2 Model B. Use this color-coded table as a quick reference when wiring sensors, actuators, or communication buses to a LINX-enabled LabVIEW project.
| GPIO Header | |||
|---|---|---|---|
| Left Pin | Pin | Pin | Right Pin |
 VDD_3v3
|
1 | 2 |
 VDD_5v
|
 I2C1_SDA |
3 | 4 |
VDD_5v
|
|
I2C1_SCL |
5 | 6 |
 DGND |
 DIO_7 |
7 | 8 |
 UART0_TX |
|
DGND |
9 | 10 |
UART0_RX |
|
DIO_11 |
11 | 12 |
DIO_12 |
|
DIO_13 |
13 | 14 |
DGND |
|
DIO_15 |
15 | 16 |
DIO_16 |
|
VDD_3v3
|
17 | 18 |
DIO_18 |
 SPI0_MOSI |
19 | 20 |
DGND |
|
SPI0_MISO |
21 | 22 |
DIO_22 |
|
SPI0_CLK |
23 | 24 |
 RESERVED_SPI0_CS0 |
|
DGND |
25 | 26 |
RESERVED_SPI0_CS1 |
|
RESERVED_I2C0_SDA |
27 | 28 |
RESERVED_I2C0_SCL |
|
DIO_29 |
29 | 30 |
DGND |
|
DIO_31 |
31 | 32 |
DIO_32 |
|
DIO_33 |
33 | 34 |
DGND |
|
DIO_35 |
35 | 36 |
DIO_36 |
|
DIO_37 |
37 | 38 |
DIO_38 |
|
DGND |
39 | 40 |
DIO_40 |
Color legend
| Chip | Signal |
|---|---|
|
3.3 V |
|
5 V |
|
I2C |
|
SPI |
|
UART |
|
LINX DIO |
|
Ground |
|
Reserved |
> Tip: Pins labeled as RESERVED_* or power rails should not be repurposed for general digital I/O. Keep power pins dedicated to supplying peripherals and always verify current draw before connecting new hardware.