HarixOS: An Open Source Linux-Style Real Operating System for ESP8266
Posted: Mon May 04, 2026 5:05 pm
HarixOS – A Linux-Style CLI Operating System for ESP8266
HarixOS is a real, CLI-based open source operating system designed specifically for microcontrollers, starting with the ESP8266 family. Unlike typical firmware projects or simple IoT scripts, HarixOS introduces a structured operating system experience on constrained hardware—complete with a shell, filesystem, scripting engine, and safe hardware API layer.
This project transforms the ESP8266 from a basic WiFi module into a fully interactive embedded computer accessible through a serial terminal.
The Story Behind HarixOS
Most ESP8266 projects follow a simple pattern: connect sensors, blink LEDs, send data to the cloud. But as projects grow, managing logic becomes messy, unsafe, and unscalable.
HarixOS was built to solve this problem.
Instead of writing scattered firmware logic, HarixOS introduces a central operating system layer where everything is controlled through commands—just like Linux systems, but designed for microcontrollers.
The goal was simple:
Screenshots
And much more amazing commands!
Key Principles
HarixOS is built around three core principles:
Core Features
Architecture Overview
This design ensures:
Script Engine (.hx)
HarixOS includes a lightweight scripting system for automation:
Getting Started with HarixOS
Prerequisites:
Download prebuilt latest .bin files on the Release Page.
Directly flash binary:
Note: Make sure the binary matches your board (esp01 / nodemcu / d1 mini).
Common Commands
Project Links
GitHub Repository: https://github.com/Haris16-code/HarixOS
HarixOS Community: https://harixos.harislab.tech
Support the Project: https://harislab.gumroad.com/l/wsxmy?wanted=true
Future Vision
HarixOS is a real, CLI-based open source operating system designed specifically for microcontrollers, starting with the ESP8266 family. Unlike typical firmware projects or simple IoT scripts, HarixOS introduces a structured operating system experience on constrained hardware—complete with a shell, filesystem, scripting engine, and safe hardware API layer.
This project transforms the ESP8266 from a basic WiFi module into a fully interactive embedded computer accessible through a serial terminal.
The Story Behind HarixOSMost ESP8266 projects follow a simple pattern: connect sensors, blink LEDs, send data to the cloud. But as projects grow, managing logic becomes messy, unsafe, and unscalable.
HarixOS was built to solve this problem.
Instead of writing scattered firmware logic, HarixOS introduces a central operating system layer where everything is controlled through commands—just like Linux systems, but designed for microcontrollers.
The goal was simple:
That idea evolved into HarixOS—a modular OS with a command-line shell, safe API architecture, and a script engine for automation.“What if ESP8266 could feel like a real computer, not just a WiFi chip?”
ScreenshotsAnd much more amazing commands!
Key PrinciplesHarixOS is built around three core principles:
- Simplicity through CLI – Everything is accessible via commands
- Safety by design – Apps never touch hardware directly
- Extensibility first – New boards and features can be added easily
Core Features- Interactive CLI shell (HarixOS>)
-
Linux-like filesystem (LittleFS support) -
GPIO control via safe API layer - WiFi management (scan, connect, status)
- .hx scripting engine for automation
- Background task scheduler
-
HTTP file downloader (pull command) -
Built-in calculator -
Notepad CLI editor -
System tools (info, heap, reboot, adc) - HTTP server for file sharing
-
Modular API architecture (GPIO, WiFi, FS, System)
Linux-like filesystem (LittleFS support)
GPIO control via safe API layer
HTTP file downloader (pull command)
Built-in calculator
Notepad CLI editor
System tools (info, heap, reboot, adc)
Modular API architecture (GPIO, WiFi, FS, System)
Architecture OverviewCode: Select all
CLI / .hx Scripts
↓
HarixOS API Layer (Safe & Structured)
↓
ESP8266 Hardware (GPIO, WiFi, ADC, FS)
- No unsafe direct hardware access
- Controlled system behavior
- Stable execution even under heavy scripting
Script Engine (.hx)HarixOS includes a lightweight scripting system for automation:
Code: Select all
gpio 2 mode output
gpio 2 on
delay 500
gpio 2 off
delay 500
Prerequisites:
- ESP8266 Flasher Tool (if using precompiled)
- PlatformIO (if building from source)
- USB-to-serial adapter or development board
- Any ESP8266-family board (ESP-01, NodeMCU, D1 mini, etc.)
Download prebuilt latest .bin files on the Release Page.
Directly flash binary:
Code: Select all
esptool.py --port COM3 write_flash 0x00000 firmware.bin
Note: Make sure the binary matches your board (esp01 / nodemcu / d1 mini).Common Commands
- help — list available commands
- info — system and Wi-Fi summary
- ls — check filesystem
- notepad /myfile.txt — edit and save text files
- wifi scan — scan nearby networks
- run /scripts/myapp.hx — execute a .hx script
Project Links
GitHub Repository: https://github.com/Haris16-code/HarixOS
HarixOS Community: https://harixos.harislab.tech
Support the Project: https://harislab.gumroad.com/l/wsxmy?wanted=true
Future Vision- ESP32 support
- Plugin system for apps
- OTA updates
- GUI layer (optional future module)