Directory

Walnut Pi 2 Introduction

• Product Specifications
• Downloads

Getting Started

• Hardware Details
• Walnut Pi 2B Peripheral Assembly
• System Image Burning
• Power On

Walnut Pi OS Usage

• OS Introduction
• Pre-installed Software
• Terminal and Common Commands
• WiFi Connection
• Time Settings
• System Language
• IP Address
• SSH Remote Terminal
• VNC Remote Desktop
• Device Map
• EMMC Storage
• NVMe SSD
• Shutdown and Reboot
• CPU Temperature
• Chip ID
• Audio and Recording
• IR Receiver
• USB Drive Mounting
• MIPI Camera
• USB Camera
• Display
  • 1.54-inch Display
  • 3.5-inch Display
  • 5.5-inch MIPI Display
  • 10.1-inch MIPI Display
  • Raspberry Pi MIPI Display
• Auto-run Script on Boot
• config.txt

GPIO Applications

• GPIO Introduction
• GPIO Command Operations
• GPIO Device Configuration
• PWM

Python Embedded Programming

• Running Python Code
• Introduction to Blinka (Python Library)
• GPIO Basic Experiments
  • GPIO Introduction
  • Lighting the First LED
  • Button
  • Active Buzzer
  • UART (Serial Communication)
  • I2C (OLED Display)
  • PWM
• Sensors
  • PIR Motion Sensor
  • HC-SR04 Ultrasonic Distance
  • BMP280 Barometric Pressure
  • MPU6050 6-Axis Accelerometer
  • VL53L1X Laser Distance
  • MLX90614 Infrared Thermometer
• Expansion Modules
  • Relay
• Network Applications
  • Socket Communication
  • MQTT Communication
• Other Tips
  • Auto-run Python Code on Boot
  • Calling Terminal Commands from Python

C Embedded Programming

• Compiling C Code on the Board
• IO Control
• I2C
• SPI
• UART (Serial)
• PWM

PyQt5

• PyQt5 Introduction
• Development Environment Setup
• First Window
• Writing and Running Code
• Signals and Slots
• Widgets
  • Widgets Introduction
  • Button Classes
    • PushButton
    • ToolButton
  • Display Widgets
    • Label
  • Input Widgets
    • LineEdit (Single-line Text Box)
    • TextEdit (Multi-line Text Box)
• Drawing
  • Drawing Introduction
  • Drawing Shapes
    • Drawing Shapes
    • Pen and Brush Settings
  • Drawing Text
    • Writing Text
    • Font Settings
  • Drawing Images

OpenCV

• OpenCV Introduction
• OpenCV Installation
• Basic Image Operations
• Image Fundamentals
• Drawing
  • Drawing Shapes
  • Writing Characters
• Image Processing
  • Resize
  • Flip
  • Binarization
• Image Detection
  • Contour Detection
  • Edge Detection
  • Line Detection
  • Circle Detection
  • Template Matching
• USB Camera Usage
• LCD Usage
• Visual Recognition
  • Cascade Classifier Introduction
  • Face Detection
  • Eye Detection
  • Cat Face Detection
  • License Plate Detection

NPU Applications

• NPU Introduction
• YOLO Applications
  • YOLO Introduction
  • YOLO11 Classification
  • YOLO11 Detection
  • YOLO11 Oriented Detection
  • YOLO11 Image Segmentation
  • YOLO11 Pose Estimation
  • Model Conversion
  • Online Model Training

Home Assistant

• Introduction
• Home Assistant Installation
• Initial Configuration
• Concepts and Terminology
• Dashboard
• MQTT Integration
  • MQTT Server Installation
  • Adding MQTT Integration
  • Adding MQTT Devices and Entities
    • Discovering Devices and Entities
    • LED
    • Button
    • Temperature Sensor DS18B20
• Camera Monitoring
• Automation
• Adding Commercial Products
• Integrating Apple HomeKit

Android System Usage

• Image Burning
• Power On

Community Open-Source Project Sharing

Changelog