Unboxing the Raspberry Pi
Although the Pi A+, B+, and Model 2-B are used for all of our projects, nothing covered in this book precludes the use of the older A and B models. The Pi you purchased might be sourced from many different suppliers. There are some critical differences that you need to be aware of if you plan to use the Pi for a hobby project or education tool:
|
Model type |
GPIO header |
SD type |
Audio / Composite video |
|---|---|---|---|
|
Raspberry Pi A and Pi B |
26 pins |
standard |
Separate TRS and RCA connections |
|
Raspberry Pi B+, A+ and Pi Model 2-B |
40 pins |
micro |
Combined into a single TTRS connector |
If you compare other revisions of the Pi with the following image, you will notice that there are some orientation and position changes for connectors ...
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