The ESP32 Partition Tool is a utility designed to facilitate creating custom partition schemes in Arduino IDE 1.8.x & PlatformIO.

This tool aims to simplify the process of creating custom partition schemes for ESP32 projects.

• Create partitions csv
• Import custom partitions csv
• Export custom partitions csv
• Create & upload custom SPIFFS image(SPIFFS, LittleFS or FATFS)
• Create & upload merged binary(Serial ports only)

Ensure you have the following installed:

• Java JDK 8: Required for compiling Java source files.
• Python 3.6+: Required for running the build script.

1. Clone the Repository:

   git clone https://github.com/serifpersia/esp32partitiontool.git
   cd esp32partitiontool

• On Unix-based systems (Linux, macOS):

    python3 build_tool.py
  

• On Windows:

    python build_tool.py
  

• Download the tool from releases or build it yourself.
• In your Arduino sketchbook directory, create tools directory if it doesn't exist yet.
• Unpack the tool into tools directory (the path will look like <home_dir>/Arduino/tools/ESP32PartitionTool/tool/ESP32PartitionTool.jar).
• Restart Arduino IDE

• Select Tools > ESP32 Partition Tool menu item.
• Customize partition scheme.
• Export the custom partitions CSV file to sketch directory.
• Select Tools > Partition Scheme & select Huge App (3MB APP/NO OTA/1MB SPIFFS)*this will tell Arduino IDE to use our custom partitions.csv file that's located in sketch directory(export csv via the the tool first).
• Close and open the tool to automatically load csv located at the sketch directory or load csv manually with import csv button.
• Configure Flash size and use the uploading buttons. Upload SPIFFS for filesystem spiffs binary, Upload Merge for uploading all binaries or Merge binary for just creating the merge binary file.

• Merged binary can only be uploaded to ESP32 boards via serial ports, OTA uploading is not supported, spiffs upload is supported for uploading over OTA.

• Install Java and make sure the executable is in the path
• Create a partition_manager.py in your project folder

Import('env')
import os.path
import sys

# add esp32partitiontool to path
sys.path.append(os.path.abspath( env.PioPlatform().get_package_dir("tool-esp32partitiontool") ))
# import module
from esp32partitiontool import *
# run module
load_pm(env)

• To launch the GUI, both extra_scripts and platform_packages entries must be set

[platformio]
src_dir = src
default_envs = hello-world

[env]
framework = arduino
platform = espressif32
board = esp32dev
; register the "tool-esp32partitiontool"
; remove url if you have own built tool in pacakges directory of platformio core directory
platform_packages = tool-esp32partitiontool @ https://github.com/serifpersia/esp32partitiontool/releases/download/v1.4.4/esp32partitiontool-platformio.zip
; register the "edit_partition" target
extra_scripts = partition_manager.py

[env:hello-world]
board_build.partitions = partitions/default.csv
board_upload.flash_size = 4MB
upload_speed = 1500000

• If building the plugin from source, remove the URL from the platform_packages entry ...

platform_packages      = tool-esp32partitiontool

• ... and use pio pkg to install the plugin from the root of your platformio project:

pio pkg install -e build-partition --no-save --tool /path/to/esp32partitiontool/esp32partitiontool-platformio.zip --force

• If building from vsCode: run ESP32 Partition Tool Task
• If building from a shell : pio run -t edit_partition -e your_environment

Feel free to report any issues. Translation contributions are welcome if you find the current translations to be wrong, not adequate or you want to add support for another language.

This project is licensed under the MIT License.