The following are the proposed pinout allocations for the Raspberry Pi (Pi 3 or Pi Zero W) in the project.
+--------------+---------+---------+----------+---------+---------+--------------+ | Description | Name | Mode | Physical | Mode | Name | Description | | (Connected) | | | | | | (Connected) | +--------------+---------+---------+----++----+---------+---------+--------------+ | | 3.3v | 3.3v | 1 || 2 | 5v | 5v | +5v Supply | | | SDA.1 | - | 3 || 4 | 5v | 5v | +5v Supply | | | SCL.1 | - | 5 || 6 | GND | 0v | Gnd Supply | | | GPIO. 7 | - | 7 || 8 | - | TxD | | | Logic Gnd | 0v | GND | 9 || 10 | - | RxD | | | Chan. Red | GPIO. 0 | IN/TRI | 11 || 12 | IN/TRI | GPIO. 1 | Chan. Green | | Chan. Blue | GPIO. 2 | IN/TRI | 13 || 14 | GND | 0v | | | | GPIO. 3 | - | 15 || 16 | - | GPIO. 4 | | | | 3.3v | 3.3v | 17 || 18 | - | GPIO. 5 | | | | MOSI | - | 19 || 20 | GND | 0v | | | | MISO | - | 21 || 22 | - | GPIO. 6 | | | | SCLK | - | 23 || 24 | - | CE0 | | | | 0v | GND | 25 || 26 | - | CE1 | | | | SDA.0 | - | 27 || 28 | - | SCL.0 | | | | GPIO.21 | - | 29 || 30 | GND | 0v | | | | GPIO.22 | - | 31 || 32 | OUT/PWM | GPIO.26 | Audio Out(L) | | Audio Out(R) | GPIO.23 | OUT/PWM | 33 || 34 | GND | 0v | Audio Gnd? | | | GPIO.24 | - | 35 || 36 | - | GPIO.27 | | | | GPIO.25 | - | 37 || 38 | - | GPIO.28 | | | | 0v | GND | 39 || 40 | - | GPIO.29 | | +--------------+---------+---------+----++----+---------+---------+--------------+ | Description | Name | Mode | Physical | Mode | Name | Description | +--------------+---------+---------+----------+---------+---------+--------------+
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