Maqueen Plus V3 - Advanced Matrix Laser Navigation STEM Robot for Competitions (AA Battery)

1. Getting Started

This document introduces the Maqueen Plus V3 user guide, including battery usage, power control, hardware assembly, motor replacement, sensor calibration, and basic MakeCode programming, helping users safely assemble, operate, and quickly get started with the robot.

2. Example Code for MBT0050-AA

This document provides a collection of practical example codes for Maqueen Plus V3, covering motion control, RGB lighting, line tracking, PID speed control, sensor applications, and autonomous behaviors. It helps users understand robot control principles and quickly develop educational and robotics projects using MakeCode.

Function difference table of Maqueen Plus V2 / V3

Name	Maqueen Plus V2	Maqueen Plus V3
WS2812 RGB ×4	✔	✔
Infrared receiving sensor×1	✔	✔
Bottom acrylic protection	✔	✔
Buzzer×1	✔	✔
Line-tracking sensor calibration function	✔	✔
Ultrasonic distance sensor	✔	Upgrade to matrix lidar
LED Car headlights ×2	✔	Upgrade to RGB lights
RGB Car headlights ×2	×	✔
Matrix laser sensor	×	✔
Light sensor ×2	×	✔
Motor encoder and PID control	×	✔
Chip-level built-in line-tracking function	×	✔
Chip-level built-in intersection recognition function	×	✔
The motor is detachable	×	✔
Special voltage stabilizing circuit for the motor	×	✔
The firmware is upgradable	×	✔
Adjustable-angle metal bracket	×	✔
Whether it supports the unihiker Board K10	×	✔
Does the user need to assemble	×	✔

Product Parameters

Power Parameters

Parameter	Specification
AA Battery Version	3.5V – 6V (4 × AA: 1.5V alkaline or 1.2V Ni-MH)
18650 Battery Version	3.5V – 4.2V (1 × rechargeable 18650 Li-ion)
Charging Port	TYPE-C / MicroUSB
Charging Voltage	5V 1A
Battery Reverse Connection Protection	Supported
Battery Level Display	5-segment digital tube
Charging Indicator	Digital tube: red during charging, green when fully charged; supports charging while powered off

Line-Tracking Sensor

Parameter	Specification
Number of Sensors	5
Calibration Button	1
Output Type	Switching quantity / Analog quantity
Intersection Recognition	Crossroad, T-shaped, Right+Straight, Left+Straight (4 types)
Built-in Line-Tracking Function	Supported
Built-in Line-Tracking Speed Levels	5 gears (Level 1 – 5)

RGB Light

Parameter	Specification
WS2812 RGB LEDs	4
WS2812 Color Range	R255 × G255 × B255 (16.7 million colors)
RGB Car Lights	2
Car Light Colors	Red, Green, Yellow, Blue, Purple, Cyan, White

Light Sensor

Parameter	Specification
Number of Sensors	2
Data Range	0 – 1023

Matrix Laser Sensor

Parameter	Specification
Number of Sensors	1
Supply Voltage	3.3V – 5V
Data Interfaces	I²C / UART / USB
Physical Interfaces	PH2.0-4P (Gravity) / TYPE-C
Matrix Size	8×8 (64 measurement points)
Function Modes	Matrix measurement mode / Intelligent obstacle avoidance mode
I²C Address	0x30 / 0x31 / 0x32 / 0x33 (4 selectable)
Firmware Update	Via USB
Ranging Mode	Continuous
Ranging Speed	15 Hz
Ranging Range	20 mm – 4000 mm
Ranging Accuracy	• 20–200 mm: ±11 mm (white), ±12 mm (light gray/gray) • 200–4000 mm: ±5% (white), ±6% (light gray/gray)
Field of View	Horizontal 60°, Vertical 60°, Diagonal 90°
Laser Safety	Class 1 (eye-safe)

Motor

Parameter	Specification
Number of Motors	2
Motor Model	N20 metal gear motor
Motor Interface	PH2.0-2P
Motor Power Supply	Independent 5V regulated supply
Disassembly Method	Screw-fixed (M3 screws)

Motor Encoder and PID

Parameter	Specification
Encoders	2
Sensing Method	Magnetic induction
Encoder Resolution	4-line
PID Control Capabilities	Distance control (±2 cm), Angle control (±5°)
Speed Measurement Unit	Centimeters per minute (cm/min)

Infrared Receiver and Buzzer

Component	Quantity
Infrared Receiver Sensor	1
Buzzer	1

Expansion Interface and Other Configurations

Parameter	Specification
Metal Bracket Parts	2
Adjustment Axis	1-axis
Adjustment Angle Range	270°
Bracket Fastening	4 × M3 hand-twisted metal screws
PCB Threaded Mounting Holes	2
Firmware Upgrade	1 button + interface
Extended GPIOs	14
Bottom Protection	1 × acrylic plate