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MiniDexed
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Thanks @rsta2
https://github.com/probonopd/MiniDexed/issues/38#issue-1160260803
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probonopd 3 years ago committed by GitHub
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@ -41,6 +41,42 @@ I am wondering whether we can run multiple Dexed instances, in order to recreate
* Boot * Boot
* Stat playing * Stat playing
## Pinout
All devices on Raspberry Pi GPIOs are optional.
__CAUTION:__ All GPIO numbers are [chip numbers](https://pinout.xyz/), not header positions.
|GPIO | Device | | Function | Direction | Commant|
|---|---|---|---|---|---|
|14 | UART | | TXD | | OUT | | serial MIDI|
|15 | UART | | RXD | | IN | | serial MIDI|
|18 | DAC | | CLK | | OUT|
|19 | DAC | | FS | | OUT|
|21 | DAC | | DOUT | | OUT|
|02 | I2C | | SDA | | IN/OUT | | used by some DACs|
|03 | I2C | | SCL | | OUT | | used by some DACs|
|17 | LCD | | EN | | OUT | | default setting|
|27 | LCD | | RS | | OUT | | default setting|
|16 | LCD | | RW | | OUT | | default setting, optional|
|22 | LCD | | D4 | | OUT | | default setting|
|23 | LCD | | D5 | | OUT | | default setting|
|24 | LCD | | D6 | | OUT | | default setting|
|25 | LCD | | D7 | | OUT | | default setting|
|05 | ROTARY ENCODER | CLK (ENC A) | IN | | default setting|
|06 | ROTARY ENCODER | DT (ENC B) | IN | | default setting|
|26 | ROTARY ENCODER | SW | | IN | | default setting|
|12 | PWM AUDIO | PWM0 | | OUT | | on Raspberry Pi Zero|
|13 | PWM AUDIO | PWM1 | | OUT | | on Raspberry Pi Zero|
|07 | SPI | | /CE1 | | OUT | | reserved|
|08 | SPI | | /CE0 | | OUT | | reserved|
|09 | SPI | | MISO | | IN | | reserved|
|10 | SPI | | MOSI | | OUT | | reserved|
|11 | SPI | | SCLK | | OUT | | reserved|
|04 | NONE | | | | | | can generate clock signal|
|20 | NONE | | | | | | may be used for DAC DIN|
## Building locally ## Building locally
E.g., to build for Raspberry Pi 4 on a Ubuntu 20.04 build system, you can use the following example. See [`build.yml`](../../tree/main/.github/workflows/build.yml) for complete build steps that create versions for Raspberry Pi 1, 2, 3,and 4 in 32-bit and 64-bit as required. E.g., to build for Raspberry Pi 4 on a Ubuntu 20.04 build system, you can use the following example. See [`build.yml`](../../tree/main/.github/workflows/build.yml) for complete build steps that create versions for Raspberry Pi 1, 2, 3,and 4 in 32-bit and 64-bit as required.

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