januxnet / DRUM_2004_V1

ESP32 DRUM SYNTH MACHINE

DRUM_2004_V1

ESP32 DRUM SYNTH MACHINE

This is my DRUM SYNTH LOFI MACHINE.

Synth engine:

• Wavetable synthesizer based on DZL Arduino library "The Synth" (https://github.com/dzlonline/the_synth)
• 16 sound polyphony
• Sound parameters: Table, Length, Envelope, Pitch, Modulation, + Volume, Pan and Filter.
• Filter (LowPassFilter) comes from Mozzi library (https://github.com/sensorium/Mozzi)

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 (8x3)
• Rotary encoder
• OLED display I2c
• 32 LED WS2812B

Software:

IDE: Arduino 1.8.19

Boards: Expressif Systems 2.0.14

Board: Lolin S2 Mini

Libraries:

• Sequencer Timer - uClock: https://github.com/midilab/uClock
• RGB Leds - Adafruit Neopixel: https://github.com/adafruit/Adafruit_NeoPixel
• OLED - u8g2: https://github.com/olikraus/u8g2

Notes:

Schematics uploaded.

Join solder pads near SCK pin in PCM5102A module.

Video demo of the prototype:

Waiting PCBs to build the first one :)