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‎LICENSE‎

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‎README.md‎

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# WavetablePi
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WavetablePi is a wavetable module based on the Raspberry Pi Zero 2 W running [mt32-pi](https://github.com/dwhinham/mt32-pi).
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It is capable of emulating several midi synthesizers, including mt32, sc55 and general midi with custom sound fonts.
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For a complete feature list please refer to the [mt32-pi](https://github.com/dwhinham/mt32-pi) project.
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<img src='img/WavetablePi_rev0.1_purple_PCB.jpg' alt='WavetablePi with OLED Display and DAC' height=240>
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<p float="left">
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<img src='img/WavetablePi_PCB_front.png' alt='WavetablePi PCB Front' height=240>
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<img src='img/WavetablePi_PCB_back.png' alt='WavetablePi PCB Back' height=240>
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</p>
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# Features
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- It currently supports two modes of audio: using the raspberry pi's PWM audio out (which is noisy and sounds pretty bad), and an external Hi-Fi PCM5102A based DAC.
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- You can also attach a 0.91 OLED SSD1306 I2C 128x32 display.
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# Bill of materials
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Item | ## | Description
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-----------------------------------------|-----|-----------------------------------------
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Raspberry Pi Zero 2 W | 1 | The older RPi Zero is not fast enough
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40-pin 2x20 male header 2.54mm pitch | 1 | For attaching the RPi to the board.
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26-pin 2x13 female header 2.54mm pitch | 1 | For attaching the board to the wavetable header
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6-pin 2x3 pin male header 2.54mm pitch | 1 | For the audio select jumpers
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Jumper 2.54mm pitch | 2 | Jumpers for the audio selection header
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10uF through-hole ceramic capacitors | 2 |
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Resistor 22K Ohm | 1 |
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Resistor 10K Ohm | 1 |
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0.91 OLED SSD1306 I2C 128x32 module | 1 | (Optional)
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PCM5102A I2S DAC Module | 1 | (Optional but highly recommended) Please check the PCB for the supported dimensions
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‎img/WavetablePi_PCB_back.png‎

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‎img/WavetablePi_PCB_front.png‎

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‎img/WavetablePi_rev0.1_purple_PCB.jpg‎

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‎kicad/WavetablePi.kicad_pcb‎

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‎kicad/WavetablePi.lib‎

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EESchema-LIBRARY Version 2.4
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#encoding utf-8
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#
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# GY_PCM5102A
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#
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DEF GY_PCM5102A GY_PCM5102? 0 40 Y Y 1 F N
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F0 "GY_PCM5102?" 0 0 50 H V C CNN
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F1 "GY_PCM5102A" 0 100 50 H V C CNN
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F2 "" 0 0 50 H I C CNN
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F3 "" 0 0 50 H I C CNN
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DRAW
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S -50 -100 1200 -700 0 1 0 N
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X SCK 1 -150 -150 100 R 50 50 1 1 I
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X FMT 10 650 0 100 D 50 50 1 1 O
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X A3V3 11 750 0 100 D 50 50 1 1 O
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X G 12 850 0 100 D 50 50 1 1 P
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X R 13 950 0 100 D 50 50 1 1 O
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X G 14 1050 0 100 D 50 50 1 1 P
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X L 15 1150 0 100 D 50 50 1 1 O
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X BCK 2 -150 -250 100 R 50 50 1 1 I
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X DIN 3 -150 -350 100 R 50 50 1 1 I
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X LCK 4 -150 -450 100 R 50 50 1 1 I
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X GND 5 -150 -550 100 R 50 50 1 1 P
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X VIN 6 -150 -650 100 R 50 50 1 1 W
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X FLT 7 350 0 100 D 50 50 1 1 O
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X DEMP 8 450 0 100 D 50 50 1 1 O
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X XSMT 9 550 0 100 D 50 50 1 1 O
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ENDDRAW
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ENDDEF
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#
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# LCD_0.91_OLED
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#
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DEF LCD_0.91_OLED U 0 40 Y Y 1 F N
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F0 "U" 0 0 50 H V C CNN
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F1 "LCD_0.91_OLED" 800 -300 50 H V C CNN
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F2 "" 0 0 50 H I C CNN
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F3 "" 0 0 50 H I C CNN
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DRAW
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S 100 -100 1250 -500 0 1 0 N
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S 400 -150 1200 -450 0 1 0 N
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X SDA 1 0 -150 100 R 50 50 1 1 I
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X SCK 2 0 -250 100 R 50 50 1 1 I
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X VCC 3 0 -350 100 R 50 50 1 1 W
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X GND 4 0 -450 100 R 50 50 1 1 P
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ENDDRAW
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ENDDEF
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#
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# RPiZero2W
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#
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DEF RPiZero2W RPi 0 40 Y Y 1 F N
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F0 "RPi" 1050 350 50 H V C CNN
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F1 "RPiZero2W" 1100 -600 50 H V C CNN
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F2 "" 0 0 50 H I C CNN
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F3 "" 0 0 50 H I C CNN
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DRAW
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S 0 300 2200 -1500 0 1 0 N
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X 3.3V 1 200 -1100 100 U 50 50 1 1 w
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X GPIO_15 10 600 -100 100 D 50 50 1 1 B
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X GPIO_17 11 700 -1100 100 U 50 50 1 1 B
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X GPIO_18 12 700 -100 100 D 50 50 1 1 B
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X GPIO_27 13 800 -1100 100 U 50 50 1 1 B
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X GND 14 800 -100 100 D 50 50 1 1 P
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X GPIO_22 15 900 -1100 100 U 50 50 1 1 B
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X GPIO_23 16 900 -100 100 D 50 50 1 1 B
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X 3.3V 17 1000 -1100 100 U 50 50 1 1 w
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X GPIO_24 18 1000 -100 100 D 50 50 1 1 B
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X GPIO_10 19 1100 -1100 100 U 50 50 1 1 B
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X 5V 2 200 -100 100 D 50 50 1 1 W
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X GND 20 1100 -100 100 D 50 50 1 1 P
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X GPIO_9 21 1200 -1100 100 U 50 50 1 1 B
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X GPIO_25 22 1200 -100 100 D 50 50 1 1 B
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X GPIO_11 23 1300 -1100 100 U 50 50 1 1 B
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X GPIO_8 24 1300 -100 100 D 50 50 1 1 B
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X GND 25 1400 -1100 100 U 50 50 1 1 P
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X GPIO_7 26 1400 -100 100 D 50 50 1 1 B
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X ID_SD 27 1500 -1100 100 U 50 50 1 1 B
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X ID_SC 28 1500 -100 100 D 50 50 1 1 B
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X GPIO_5 29 1600 -1100 100 U 50 50 1 1 B
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X GPIO_2 3 300 -1100 100 U 50 50 1 1 B
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X GND 30 1600 -100 100 D 50 50 1 1 P
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X GPIO_6 31 1700 -1100 100 U 50 50 1 1 B
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X GPIO_12 32 1700 -100 100 D 50 50 1 1 B
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X GPIO_13 33 1800 -1100 100 U 50 50 1 1 B
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X GND 34 1800 -100 100 D 50 50 1 1 P
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X GPIO_19 35 1900 -1100 100 U 50 50 1 1 B
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X GPIO_16 36 1900 -100 100 D 50 50 1 1 P
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X GPIO_26 37 2000 -1100 100 U 50 50 1 1 B
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X GPIO_20 38 2000 -100 100 D 50 50 1 1 P
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X GND 39 2100 -1100 100 U 50 50 1 1 P
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X 5V 4 300 -100 100 D 50 50 1 1 W
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X GPIO_21 40 2100 -100 100 D 50 50 1 1 P
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X GPIO_3 5 400 -1100 100 U 50 50 1 1 B
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X GND 6 400 -100 100 D 50 50 1 1 P
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X GPIO_4 7 500 -1100 100 U 50 50 1 1 B
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X GPIO_14 8 500 -100 100 D 50 50 1 1 B
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X GND 9 600 -1100 100 U 50 50 1 1 P
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ENDDRAW
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ENDDEF
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#
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#End Library

‎kicad/WavetablePi.pretty/GY_PCM5102A.kicad_mod‎

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‎kicad/WavetablePi.pretty/LCD_0.91_OLED.kicad_mod‎

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