Product
VMIOT — A lightweight operating system built for IoT
What is VMIOT?
VMIOT is a lightweight operating system designed specifically for IoT devices. Built with a pure C89 kernel and featuring a complete Python 2.7 scripting engine, it enables developers to efficiently build embedded IoT applications using Python.
Requiring only 200KB RAM and 500KB Flash, VMIOT can be deployed across the full spectrum of IoT hardware, from low-power NB-IoT chips to high-performance Android devices.
System Architecture
Application Layer
Python Scripts
Business Logic
Custom Modules
▼
VMIOT Runtime
Python Engine
Scheduler
Memory Mgmt
Serialization
▼
Middleware
MQTT
HTTP
WebSocket
Protobuf
GPS
AV
HSM
▼
Hardware Abstraction
GPIO
UART
I2C
ADC
TCP/IP
Flash
▼
Hardware
4G
NB-IoT
WiFi
Video
Linux
RTOS
Android
Core Capabilities
Python 2.7 Scripting Engine
- Object-oriented (classes, inheritance)
- Functional (closures, decorators, generators)
- Exception handling (try/except/finally)
- List comprehensions, lambda expressions
- Lightweight embedded-optimized implementation
Multi-tasking System
- Preemptive thread scheduling
- Job process-level tasks (state isolation)
- Thread Link lifecycle management
- Auto-restart service mechanism
- Critical sections & interlocked objects
Networking
- TCP Client/Server
- MQTT Messaging Protocol
- HTTP Client
- WebSocket Bidirectional
- Single-read multi-write IO model
Serialization
- JSON marshal/unmarshal
- Struct binary packing
- Google Protobuf
- Object serialization (dict/list/rbdict)
- XML support
Hardware IO
- GPIO digital IO
- UART Serial
- I2C Bus
- ADC Analog-digital
- Flash File system
Advanced
- GPS/LBS positioning
- Audio/video capture & streaming
- HSM Hardware Security Module
- C language extension modules
- Dynamic code execution
Development Toolchain
vmiotman.exe
Project manager — compile, run, and debug in one tool
vmiotman.exe /vmiotcompile && vmiotman.exe /vmiotrun
main_img.vmiot
Build artifact — binary image deployable to target devices
# Auto-generated after compilation
Sub-project System
Nested projects, independent testing, modular reuse
project/subproject/main.py