Bit-Tree Creativity - Barrier-Free Intelligent Traffic Light Course Package

Barrier-Free Intelligent Traffic Light Course Package

This programming project of barrier-free intelligent traffic light adopts sound-light combination to remind pedestrians to cross the road safely, bringing great convenience to visually impaired and color-blind groups. The project features simple assembly operation. Its programming learning involves strong logicality and effectively exercises thinking ability.

Synchronized sound and light prompts to assist visually impaired people crossing roads

Easy assembly, reproduces the timing sequence of real traffic lights

Exercise logical ability and strengthen programming thinking training

BIT-TREE CREATIVITY

STEAM skills like programming will be a core competency for the next generation, and the time to cultivate this ability is now.

Level 1 Category	Level 2 Item	Parameter Description
I. Basic Product Information	Full Product Name	Barrier-Free Intelligent Traffic Light Course Package (BIT-TREE Creator STEAM Teaching Kit)
	Brand & Manufacturer	BIT-TREE CREATIVITY (Bit-Tree, Integrated Supplier of Science Education Kits & Courses)
	Business Contact	Ms. He: 13580738098 (Mobile & WeChat)
	Overall Dimension	270mm×90mm (Outer frame size of complete model)
	Material & Structure	Acrylic light-transmitting panel + eco-friendly plastic base; modular assembly design, easy to assemble & disassemble
	Compatible Mainboard	BIT.U1 (ATmega328P, Arduino architecture) / BIT.S3 (ESP32), compatible with both official development boards
	Power Supply	DC 5V; 3 power supply options: USB cable, 5V adapter, power bank
II. Hardware Components Configuration	Light Module	Red/Yellow/Green high-brightness LED traffic signal lights; matched digital tube to display countdown time
	Audio-Visual Prompt Module	Built-in 1W power amplifier speaker (passive buzzer / voice playback); barrier-free voice/buzzer reminder for visually impaired & color-blind users
	Interactive Parts	2 physical touch buttons; customizable functions: emergency pass, timing switch, fault reset
	Expansion Reserve	Reserved IO pins; expandable with ultrasonic & infrared sensors for red light detection and traffic flow sensing
III. Core Product Functions (Barrier-Free Feature)	Basic Traffic Logic	Automatically cycles red/yellow/green signals; digital tube synchronously displays remaining countdown duration
	Barrier-Free Audio-Light Linkage (Core Function)	Dual reminder of light + sound: continuous prompt tone for green light; short warning tone for red light. Makes up for color vision deficiency, ensures safe road crossing for vulnerable groups
	Extended Functions	Button-triggered emergency mode (all-red signal for emergency vehicles, voice broadcast for priority pedestrians); programmable overtime reminder & red light warning logic
IV. Programming & Course Parameters	Development Environment	1. Graphical programming: Mixly block coding 2. Code programming: Arduino IDE C language (unified development system same as password box & smart trash can)
	Programming Knowledge Points	1. Basic syntax: sequence, branch judgment, loop statements, variables & data types 2. Hardware programming: LED timing control, digital tube countdown drive, speaker tone control, button IO reading 3. Project logic: multi-condition linkage, multi-peripheral coordinated control, barrier-free scene algorithm design
	Assembly Difficulty	Simple overall assembly, modular wiring; beginners can complete hardware setup independently
	Ability Cultivation	Circuit wiring practice, program logic design, barrier-free engineering thinking & troubleshooting skills
V. Application Scenarios	Applicable Scenarios	Maker classrooms, information technology courses, after-school programming clubs, training equipment for youth STEAM innovation competitions
	Supporting Materials	Original project-based programming textbooks, wiring manuals, sample source codes (2 sets: basic traffic light program + barrier-free voice program)

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