Appendix B
The GPIO on the Raspberry Pi
Table B-1 is a handy reference to the GPIO. For a detailed explanation of what this means and for more information on how you can use the GPIO to connect your Raspberry Pi to your own electronics projects, refer to Chapters 14 to 17.
Table B-1 A Reference Guide to the GPIO
|
GPIO |
Use |
Description |
|
0 |
Gen/Cam |
Revision 1 P1–03Revision 2 I2C on camera S5 |
|
1 |
Gen/Cam |
Revision 1 P1–05Revision 2 I2C on camera S5 |
|
2 |
Cam/Gen |
Revision 1 I2C on camera S5Revision 2 P1-03 |
|
3 |
Cam/Gen |
Revision 1 I2C on camera S5Revision 2 P1-05 |
|
4 |
General |
P1-07 |
|
5 |
Cam |
Camera clock pin 12 on S5 |
|
6 |
System |
LAN RUN— the reset on the LAN chip |
|
7 |
General |
P1-26 |
|
8 |
General |
P1–24 |
|
9 |
General |
P1–21 |
|
10 |
General |
P1–19 |
|
11 |
General |
P1–23 |
|
12 |
No |
Not tracked out |
|
13 |
No |
Not tracked out |
|
14 |
General |
P1–08. Used for TXD0 data out during boot up |
|
15 |
General |
P1–10. Used for RXD0 data in during boot up |
|
16 |
System |
Status LED red (OK LED on Revision 1, ACT on Revision 2 |
|
17 |
General |
P1–11 |
|
18 |
General |
P1–12 |
|
19 |
No |
Not tracked out |
|
20 |
No |
Not tracked out |
|
21 |
Cam/Gen |
Revision 1 P1–13Revision 2 camera GPIO–Pin 11 on S5 |
|
22 |
General |
P1–15 |
|
23 |
General |
P1–16 |
|
24 |
General |
P1–18 |
|
25 |
General |
P1–22 |
|
26 |
No |
Not tracked out |
|
27 |
Cam/Gen |
Revision 1 camera GPIO–Pin 11 on S5Revision 2 P1–13 |
|
28 |
Sys/Gen |
Revision ... |
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