ash/Pi-Pico-ExpressionPedal2Midi
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Ashley Strahle
2021-02-01 16:21:57 +10:00
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@@ -27,9 +27,8 @@ Either USB or 3xAA battery holder
### Method ### Method
1. Load your Pico board with main.py 1. Customise the midi settings in main.py. Season to taste
2. Customise the midi settings in the main.py file accordingly. Season to taste 2. Upload to your board using Thonny, or your favorite IDE.
3. Upload to your board using Thonny, or your favorite IDE.
Now for the stuffing: Now for the stuffing:
@@ -39,9 +38,9 @@ Now for the stuffing:
Midi messages are sent via UART1. Here’s where we need the resistors to protect the board and your midi device. Midi messages are sent via UART1. Here’s where we need the resistors to protect the board and your midi device.
4. Connect a 10Ω resistor to pin 6 on the Pico (UART1 TX). T’other end of the resistor to pin 4 of your midi socket 3. Connect a 10Ω resistor to pin 6 on the Pico (UART1 TX). T’other end of the resistor to pin 4 of your midi socket
5. Connect a 33Ω resistor to pin 36 on the Pico (3V3 OUT). T’other end of the resistor to pin 5 of your midi socket 4. Connect a 33Ω resistor to pin 36 on the Pico (3V3 OUT). T’other end of the resistor to pin 5 of your midi socket
6. Connect a Pico ground pin (any of 3, 8, 13, 18, 23, 28, or 33) to pin 2 of your midi socket 5. Connect a Pico ground pin (any of 3, 8, 13, 18, 23, 28, or 33) to pin 2 of your midi socket
You’re done here, next… You’re done here, next…
@@ -51,9 +50,9 @@ You’re done here, next…
The expression pedal is connected to ADC0 on the Pico. The expression pedal is connected to ADC0 on the Pico.
7. Connect the jack sleeve to Pico ground pin (any or 3, 8, 13, 18, 23, 28, or 33) 6. Connect the jack sleeve to Pico ground pin (any or 3, 8, 13, 18, 23, 28, or 33)
8. Connect the jack ring to Pico pin 36 (ADC0) 7. Connect the jack ring to Pico pin 36 (ADC0)
9. Connect the jack tip to Pico pin 31 (3V3 OUT) 8. Connect the jack tip to Pico pin 31 (3V3 OUT)
Jubilations, you’re done. Jubilations, you’re done.