• Introduction

• 2.1 Update the firmware
• 2.2 Set up environment
• 2.3 Download and start booting
• 2.4 Import the library file

• 3.1 Button control
• 3.2 RGB three-color lights
• 3.3 Passive buzzer
• 3.4 Vibration reminder
• 3.5 Drive stepper motor
• 3.6 Fan motor
• 3.7 Relay switch
• 3.8 OLED display characters
• 3.9 Marquee
• 3.10 PWM control servo
• 3.11 Potentiometer output analog value
• 3.12 Rocker print data
• 3.13 Sound control LED
• 3.14 Human infrared detector
• 3.15 Detect light intensity
• 3.16 Identify color
• 3.17 Ultrasonic ranging
• 3.18 Detect temperature humidity
• 3.19 IR receive data

• 4.1 Manual doorbell
• 4.2 Servo indicator
• 4.3 Detector
• 4.4 Chameleon
• 4.5 Rocker control RGB halo
• 4.6 Adjustable speed fan
• 4.7 Human induction lamp
• 4.8 Voice control stepper motor
• 4.9 Infrared control sound