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→Pins not to use for GPIO
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If you have audio card then several other pins have will be used, and that is the sort of information to get from the data sheet for the card.
If you have audio card then several other pins have will be used, and that is the sort of information to get from the data sheet for the card.
For instance some cards use the I2C pins for parameter controls and then GPIO 18,19,20,21 ( Actual Pi Pins 12,35,38,40).
For instance some cards use the I2C pins for parameter controls and then GPIO 18,19,20,21 ( Actual Pi Pins 12,35,38,40).
+
+For the zynthian audio card pins to avoid are
+
+12, 13, 15, 16, 18, 22, 35, 37, 38 & 40 which are the I2S (audio interface) pins on RPi5.
Depending on what you are trying to do other pins can be used, but it's wise to have an idea of what else was is used on your machine.
Depending on what you are trying to do other pins can be used, but it's wise to have an idea of what else was is used on your machine.
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| Pin 9 || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || - || Pin 10
| Pin 9 || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || - || Pin 10
|-
|-
−| Pin 11 || - || - || Pin 12
+| Pin 11 || - || <span style="color:#FFFFFF; background:#FF00FF">Zynthian Audio Card Pin </span> || Pin 12
|-
|-
| Pin 13 || <span style="color:#FFFFFF; background:#aa007f">GPIO 27 FAN Control</span> || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || Pin 14
| Pin 13 || <span style="color:#FFFFFF; background:#aa007f">GPIO 27 FAN Control</span> || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || Pin 14
|-
|-
−| Pin 15 || - || - || Pin 16
+| Pin 15 || <span style="color:#FFFFFF; background:#FF00FF">Zynthian Audio Card Pin </span> || <span style="color:#FFFFFF; background:#FF00FF">Zynthian Audio Card Pin </span> || Pin 16
|-
|-
−| Pin 17 || <span style="color:#FFFFFF; background:#aa5500">3v3 Power</span> || - || Pin 18
+| Pin 17 || <span style="color:#FFFFFF; background:#aa5500">3v3 Power</span> || <span style="color:#FFFFFF; background:#FF00FF">Zynthian Audio Card Pin </span> || Pin 18
|-
|-
| Pin 19 || - || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || Pin 20
| Pin 19 || - || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || Pin 20
|-
|-
−| Pin 21 || - || - || Pin 22
+| Pin 21 || - || <span style="color:#FFFFFF; background:#FF00FF">Zynthian Audio Card Pin </span> || Pin 22
|-
|-
| Pin 23 || - || - || Pin 24
| Pin 23 || - || - || Pin 24
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| Pin 33 || - || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || Pin 34
| Pin 33 || - || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || Pin 34
|-
|-
−| Pin 35 || - || - || Pin 36
+| Pin 35 || <span style="color:#FFFFFF; background:#FF00FF">Zynthian Audio Card Pin </span> || - || Pin 36
|-
|-
−| Pin 37 || - || - || Pin 38
+| Pin 37 || <span style="color:#FFFFFF; background:#FF00FF">Zynthian Audio Card Pin </span> || <span style="color:#FFFFFF; background:#FF00FF">Zynthian Audio Card Pin </span> || Pin 38
|-
|-
−| Pin39 || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || - || Pin 40
+| Pin39 || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || <span style="color:#FFFFFF; background:#FF00FF">Zynthian Audio Card Pin </span> || Pin 40
|}
|}