DRUM_2024_V1
ESP32 DRUM SYNTH MACHINE
This is my DRUM SYNTH LOFI MACHINE.
Synth engine:
- Wavetable synthesizer based on DZL Arduino library “The Synth”
- 16 sound polyphony
- Sound parameters: Table, Length, Envelope, Pitch, Modulation, + Volume, Pan and Filter.
- Filter (LowPassFilter) comes from Mozzi Library
SEQUENCER:
- 16 step/pattern editor and random generators (pattern, sound parameters and notes)
Hardware:
- Lolin S2 Mini (ESP32 S2)
- PCM5102A I2s dac
- 24 push buttons (8×3)
- Rotary encoder
- OLED display I2c
- 32 LED WS2812B
Software:
IDE:
Arduino 1.8.19
Arduino 2.3.2
Boards:
Expressif Systems 2.0.16 (Tested fine up to 2.0.17)
Board: Lolin S2 Mini
Necessary Libraries:
- Sequencer Timer – uClock
- RGB Leds – Adafruit Neopixel
- OLED – u8g2
- Button input – Keypad
Notes:
Schematics uploaded.
STL 3D model uploaded.
Cheat sheet style PDF uploaded.
Join solder pads near SCK pin on PCM5102A module.
Update:
Solder pads on the back of PCM5102A module (more info)
H1L: FLT – Low
H2L: DEMP – Low
H3L: XSMT – High
H4L: FMT – Low
Video demo of the prototype:
Prototype:
PCB, PROJECT & FINAL LOOK:
https://oshwlab.com/zircothc/esp32-drum-synth-lofi-machine
https://easyeda.com/editor#project_id=08f629c08b18444ca16accbb2242c0fb
PCB
PARTS MOUNTED
SIZE: FINAL BUILD vs PROTOTYPE
TWO MACHINES IN SYNC
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