https://github.com/jbilander/esp32-multitask-blink-example
FreeRTOS blink two LEDs example for the ESP32, FreeRTOS allows us to handle several tasks in parallel that run independently.
https://github.com/jbilander/esp32-multitask-blink-example
Last synced: over 1 year ago
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FreeRTOS blink two LEDs example for the ESP32, FreeRTOS allows us to handle several tasks in parallel that run independently.
- Host: GitHub
- URL: https://github.com/jbilander/esp32-multitask-blink-example
- Owner: jbilander
- License: mit
- Created: 2023-01-23T11:35:36.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2023-01-23T16:07:57.000Z (over 3 years ago)
- Last Synced: 2025-02-06T16:05:36.388Z (over 1 year ago)
- Language: C++
- Homepage:
- Size: 30.3 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# esp32-multitask-blink-example
FreeRTOS blink two LEDs example for the ESP32, FreeRTOS allows us to handle several tasks in parallel that run independently.
Example is taken from here:
https://randomnerdtutorials.com/esp32-dual-core-arduino-ide/
Why is this useful?
In real life, instead of blinking LEDs, this can be tasks like making a network request, measuring sensors, controlling a motor, etc…
It will then be useful to assign specific parts of the code to a specific core in order to optimize performance.
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Demo video here:
https://drive.google.com/file/d/1HbspRSdvF7cROVlgxRoYOVJftApYekXf/view?usp=sharing
***
### Prerequisites
* Download and install Visual Studio Code
* Download and install `arduino-cli` (pre-built binary)
https://arduino.github.io/arduino-cli/0.21/installation/#latest-release
* Set the PATH to the folder where `arduino-cli` is located (`arduino-cli.exe` on Windows).
* Install/Activate the Extension: Arduino for Visual Studio Code.
* CP2102 USB to UART bridge chip drivers installed (or whatever chip your ESP32 module has for this)
https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads
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### Installation (on Windows)
C:\>arduino-cli config init
Config file written to: C:\Users\Jorgen\AppData\Local\Arduino15\arduino-cli.yaml
C:\>arduino-cli config add board_manager.additional_urls https://dl.espressif.com/dl/package_esp32_index.json
C:\>arduino-cli config dump
board_manager:
additional_urls:
- https://dl.espressif.com/dl/package_esp32_index.json
C:\>arduino-cli board listall
Downloading missing tool builtin:ctags@5.8-arduino11...
builtin:ctags@5.8-arduino11 downloaded
Installing builtin:ctags@5.8-arduino11...
builtin:ctags@5.8-arduino11 installed
Downloading missing tool builtin:serial-discovery@1.3.3...
builtin:serial-discovery@1.3.3 downloaded
Installing builtin:serial-discovery@1.3.3...
builtin:serial-discovery@1.3.3 installed
Downloading missing tool builtin:mdns-discovery@1.0.6...
builtin:mdns-discovery@1.0.6 downloaded
Installing builtin:mdns-discovery@1.0.6...
builtin:mdns-discovery@1.0.6 installed
Downloading missing tool builtin:serial-monitor@0.12.0...
builtin:serial-monitor@0.12.0 downloaded
Installing builtin:serial-monitor@0.12.0...
builtin:serial-monitor@0.12.0 installed
Board Name FQBN
C:\>arduino-cli core install esp32:esp32
Downloading packages...
esp32:xtensa-esp32-elf-gcc@1.22.0-97-gc752ad5-5.2.0 downloaded
esp32:esptool_py@3.0.0 downloaded
esp32:mkspiffs@0.2.3 downloaded
esp32:esp32@1.0.6 downloaded
Installing esp32:xtensa-esp32-elf-gcc@1.22.0-97-gc752ad5-5.2.0...
esp32:xtensa-esp32-elf-gcc@1.22.0-97-gc752ad5-5.2.0 installed
Installing esp32:esptool_py@3.0.0...
esp32:esptool_py@3.0.0 installed
Installing esp32:mkspiffs@0.2.3...
esp32:mkspiffs@0.2.3 installed
Installing platform esp32:esp32@1.0.6...
Configuring platform....
Platform esp32:esp32@1.0.6 installed
Please note, this last step below is not needed if you clone this repository
C:\Users\Jorgen\Projects>arduino-cli sketch new esp32-multitask-blink-example
Sketch created in: C:\Users\Jorgen\Projects\esp32-multitask-blink-example
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### VSCode configuration:
Change path where needed, these files are located under the `.vscode`-folder in this repository but I show the content here for clarity, you don't have to copy-paste if you clone or download them from this repository, just change to your board, your COM-port and your PATH.
`settings.json`
{
"arduino.enableUSBDetection": true,
"arduino.logLevel": "verbose",
"arduino.path": "C:/Bin",
"arduino.commandPath": "arduino-cli.exe",
"arduino.useArduinoCli": true,
"arduino.disableIntelliSenseAutoGen": true,
"arduino.defaultBaudRate": 115200
}
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`arduino.json`
{
"configuration": "FlashFreq=40,UploadSpeed=115200,DebugLevel=none",
"board": "esp32:esp32:esp32doit-devkit-v1",
"sketch": "esp32-multitask-blink-example.ino",
"port": "COM4",
"output": "build"
}
***
`c_cpp_properties.json`
{
"configurations": [
{
"name": "ESP32",
"includePath": [
"${workspaceFolder}/**",
"C:/Users/Jorgen/AppData/Local/Arduino15/packages/esp32/hardware/esp32/1.0.6/**"
],
"defines": [
"_DEBUG",
"UNICODE",
"_UNICODE"
],
"compilerPath": "C:/Users/Jorgen/AppData/Local/Arduino15/packages/esp32/tools/xtensa-esp32-elf-gcc/1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-g++",
"cStandard": "c11",
"cppStandard": "gnu++11",
"intelliSenseMode": "gcc-x86"
}
],
"version": 4
}
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If you got everything configured right you should be able to `CTRL`-click on `Arduino.h` and VSCode will take you there:
***
