raspberry_pi [UWiki XXX]

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====== Raspberry Pi ======
A series of single-board computers developed by the [[https://www.raspberrypi.org/|Raspberry Pi Foundation]].

===== Hardware =====
The table below includes only the models I have.
^ Model ^ CPU ^ RAM        ^ Video         ^ Networking ^ USB ^
| 1B    |     |            | RCA, HDMI     | | |
| 1B+   |     |            |               | | |
| 2B    |     |            |               | | |
| 3B    |     |            | HDMI          | | | 
| 4B    | 4x1.5 GHz (ARMv8) | 1/2/4/8 GB | 2x micro HDMI | 802.11ac, BT 5.0, BLE, Gigabit Ethernet | 2x USB 3.0, 2x USB 2.0 |

==== GPIO ====
The easiest way to view device pinout is with the ''pinout'' command, which produces results like those pictured below. The GPIO header has remained consistent from the 2B onward.

{{https://www.raspberrypi.com/documentation/computers/images/gpiozero-pinout.png}}

All GPIO pins (except power) operate at 3.3 V logic. It does not appear that they are 5 V tolerant. These pins can be operated in Python using the ''gpiozero'' library, documented [[https://gpiozero.readthedocs.io/en/stable/|here]].