• ESP32 Sequencer
  • Features (Current and Future)
  • Project Setup
  • Pinout
    • TFT LCD Screen
• Contributing
• License

ESP32 Sequencer

A basic step sequencer based on the esp32-s3.

Features (Current and Future)

• 1-8 Selectable Steps
• Tap Tempo
• Mutate function to change single step of sequence

• CV Inputs:

  • Clock
  • Mutate

• CV Outputs:

  • Clock
  • Step Gate
  • Step 1V/O

Project Setup

Clone the repository

git clone git@gitea.rkcf.me:rkcf/esp32-sequencer.git
cd esp32-sequencer

Source idf path. Assumes ESP-IDF properly configured on system.

. $YOUR_PATH_TO_ESP_IDF/export.sh

Set the target chip and configure the project. NOTE: Running menuconfig is not currently necessary for this project.

idf.py set-target esp32s3
idf.py menuconfig

Add the dependencies. They will install upon building the project the first time.

idf.py add-dependency "espressif/esp_lcd_ili9341>=1.0.2"
idf.py add-dependency "lvgl/lvgl>=8.3.0"

Building and flashing the project. Where $PORT is the boards serial port system address (e.g. /dev/ttyUSB0).

idf.py build
idf.py -p $PORT flash
idf.py -p $PORT monitor

Or do all of this in one go with:

idf.py -p $PORT flash monitor

Pinout

ESP32 Pin	Function	Peripheral Pin
1	Clock LED
2	Gate LED
7	Clock CV Out
8	Gate CV Out
17	1V/O CV Out
CV Inputs
19	Clock CV In
20	Mutate CV In
Controls
10	Mutate Button In
11	Tap Tempo Button In
12	Rotary Encoder 1	A1
13	Rotary Encoder 1	B1
14	Rotary Encoder 2	A1
15	Rotary Encoder 2	B1
33	RE1 Red LED	1
34	RE1 Green LED	2
35	RE1 Blue LED	4
36	RE2 Red LED	1
37	RE2 Green LED	2
38	RE2 Blue LED	4
LCD
39	CS	LCD 3
40	RESET	LCD 4
41	DC/RS	LCD 5
42	SDI/MOSI	LCD 6
4	SCK	LCD 7
3	LED	LCD 8
5	SDO/MISO	LCD 9

TFT LCD Screen

LCD Pin	ESP32 Pin	Function
1		VCC (3V3)
2		GND
3	39	CS
4	40	RESET
5	41	DC/RS
6	42	SDI/MOSI
7	4	SCK
8	3	LED
9	5	SDO/MISO

Contributing

• Currently this branch is bleeding edge for rapid prototyping. In the future, a design will be homolugated and Semantic Versioning 2.0.0 will be used.
• Commit messages should follow Conventional Commits 1.0.0

License

This project is licensed under the MIT License