2015-02-15 22:57:24 +00:00
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Raspberry Pi {#rasppi}
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============
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2014-11-21 16:44:56 +00:00
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2015-02-15 22:57:24 +00:00
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The Raspberry Pi is based on the Broadcom BCM2835 system on a chip, which
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includes an ARM1176JZF-S 700 MHz processor, VideoCore IV GPU and was originally
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shipped with 256 megabytes of RAM, later upgraded (Model B & Model B+) to 512
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MB. The Raspberry Pi 2 is based on an armv7 CPU but shares a number of
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similarities with the original.
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2014-11-21 16:44:56 +00:00
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Revision Support
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----------------
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2015-02-15 22:57:24 +00:00
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Raspberry Pi A/B/A+/B+
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Raspberry Pi 2 B
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2014-11-21 16:44:56 +00:00
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Interface notes
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---------------
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**PWM** Whilst the Raspberry Pi is meant to have 1 PWM channel this is currently not supported.
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Pin Mapping
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-----------
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2015-02-15 22:57:24 +00:00
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This pin mapping refers to the first generation 'B' model Pi but gives an idea
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as to what the values are from mraa. Note that there is an emum to use wiringPi
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style numbers.
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2014-11-21 16:44:56 +00:00
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| MRAA Number | Physical Pin | Function |
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|-------------|--------------|----------|
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| 1 | P1-01 | 3V3 VCC |
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| 2 | P1-02 | 5V VCC |
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| 3 | P1-03 | I2C SDA |
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| 4 | P1-04 | 5V VCC |
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| 5 | P1-05 | I2C SCL |
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| 6 | P1-06 | GND |
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| 7 | P1-07 | GPIO(4) |
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| 8 | P1-08 | UART TX |
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| 9 | P1-09 | GND |
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2015-04-18 11:11:26 -05:00
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| 10 | P1-10 | UART RX |
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2014-11-21 16:44:56 +00:00
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| 11 | P1-11 | GPIO(17) |
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| 12 | P1-12 | GPIO(18) |
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| 13 | P1-13 | GPIO(21) |
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| 14 | P1-14 | GND |
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| 15 | P1-15 | GPIO(22) |
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| 16 | P1-16 | GPIO(23) |
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| 17 | P1-17 | 3V3 VCC |
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| 18 | P1-18 | GPIO(24) |
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| 19 | P1-19 | SPI MOSI |
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| 20 | P1-20 | GND |
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| 21 | P1-21 | SPI MISO |
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| 22 | P1-22 | GPIO(25) |
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| 23 | P1-23 | SPI SCL |
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| 24 | P1-24 | SPI CS0 |
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| 25 | P1-25 | GND |
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| 26 | P1-26 | SPI CS1 |
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2015-04-18 11:11:26 -05:00
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The following pin mapping applies to the new Raspberry Pi model 2 and B+. Note that GPIO(21) is now GPIO(27)
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2015-05-06 01:39:13 +02:00
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| MRAA Number | Physical Pin | Function |
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|-------------|--------------|----------|
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2015-04-18 11:11:26 -05:00
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| 1 | P1-01 | 3V3 VCC |
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| 2 | P1-02 | 5V VCC |
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| 3 | P1-03 | I2C SDA |
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| 4 | P1-04 | 5V VCC |
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| 5 | P1-05 | I2C SCL |
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| 6 | P1-06 | GND |
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| 7 | P1-07 | GPIO(4) |
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| 8 | P1-08 | UART TX |
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| 9 | P1-09 | GND |
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| 10 | P1-10 | UART RX |
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| 11 | P1-11 | GPIO(17) |
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| 12 | P1-12 | GPIO(18) |
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| 13 | P1-13 | GPIO(27) |
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| 14 | P1-14 | GND |
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| 15 | P1-15 | GPIO(22) |
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| 16 | P1-16 | GPIO(23) |
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| 17 | P1-17 | 3V3 VCC |
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| 18 | P1-18 | GPIO(24) |
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| 19 | P1-19 | SPI MOSI |
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| 20 | P1-20 | GND |
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| 21 | P1-21 | SPI MISO |
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| 22 | P1-22 | GPIO(25) |
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| 23 | P1-23 | SPI SCL |
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| 24 | P1-24 | SPI CS0 |
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| 25 | P1-25 | GND |
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| 26 | P1-26 | SPI CS1 |
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| 27 | P1-27 | I2C SDA1 |
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| 28 | P1-28 | I2C SCL1 |
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| 29 | P1-29 | GPIO(5) |
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| 30 | P1-30 | GND |
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| 31 | P1-31 | GPIO(6) |
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| 32 | P1-32 | GPIO(12) |
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| 33 | P1-33 | GPIO(13) |
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| 34 | P1-34 | GND |
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| 35 | P1-35 | SPI MISO1|
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| 36 | P1-36 | GPIO(16) |
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| 37 | P1-37 | GPIO(26) |
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| 38 | P1-38 | SPI MOSI1|
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| 39 | P1-39 | GND |
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| 40 | P1-40 | SPI SCL1 |
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