How to make bin file using Platformio IDE?

1

Hello !

I am trying to make .bin files from my usual .cpp files and I have no idea how to do that.

I am trying to implement Firmware Update by uploading a .bin file.

I have never used PIO Commands. I’ve only used CTRL+ALT+B and CTRL+ALT+U.

[env:esp32-evb]
platform = https://github.com/platformio/platform-espressif32.git
board = esp32-evb
framework = arduino
board_build.flash_mode = qio
upload_port = /dev/ttyUSB0
monitor_port = /dev/ttyUSB0
monitor_speed = 115200
upload_speed = 115200
build_flags = -DCORE_DEBUG_LEVEL=5

#libraries
lib_deps =  https://github.com/me-no-dev/ESPAsyncWebServer.git
            https://github.com/me-no-dev/AsyncTCP.git
2

PlatformIO already generates .bin files as part of the compile process… if you browse to the .pioenvs / .pio/build / name-of-env folder of your project, you’ll find firmware.bin.

Alternately, it’s mentioned as one of the last few lines of the build process, and you should get a message about being able to Ctrl + Click on the path to navigate to it… which will at least find the file for you in the sidebar.

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3

I found the firmware.bin inside /project_name/.pioenvs/esp32-evb

But I don’t get a message about it when I build.

This is all I get:

Processing esp32-evb (framework: arduino; platform: https://github.com/platformio/platform-espressif32.git; board: esp32-evb)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Verbose mode can be enabled via `-v, --verbose` option
CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/esp32-evb.html
PLATFORM: Espressif 32 > OLIMEX ESP32-EVB
HARDWARE: ESP32 240MHz 320KB RAM (4MB Flash)
DEBUG: CURRENT(esp-prog) EXTERNAL(esp-prog, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa)
Library Dependency Finder -> http://bit.ly/configure-pio-ldf
LDF MODES: FINDER(chain) COMPATIBILITY(soft)
Collected 29 compatible libraries
Scanning dependencies...
Dependency Graph
|-- <ESP Async WebServer> 1.2.2 #b0c6144
|   |-- <AsyncTCP> 1.1.0 #d1f28ff
|   |-- <WiFi> 1.0
|   |-- <FS> 1.0
|-- <AsyncTCP> 1.1.0 #d1f28ff
|-- <WiFi> 1.0
|-- <SPIFFS> 1.0
|   |-- <FS> 1.0
Retrieving maximum program size .pioenvs/esp32-evb/firmware.elf
Checking size .pioenvs/esp32-evb/firmware.elf
Memory Usage -> http://bit.ly/pio-memory-usage
DATA:    [=         ]  11.9% (used 38968 bytes from 327680 bytes)
PROGRAM: [======    ]  62.1% (used 813682 bytes from 1310720 bytes)
============================================================================== [SUCCESS] Took 1.92 seconds ==============================================================================

Terminal will be reused by tasks, press any key to close it.

You get WAAAAY more info than me.

4

Yeah… just ran it again… and didn’t get it. It’s because it was a from scratch build. If I clean the build files out it’ll take a while to rebuild everything, and will show it. Could probably add a extra_script to show that… but it’s easy enough to find the file if needed.

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5

Yep. It makes the firmware.bin only if you’ve actually changed something to the code.

Great. Thanks !

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