Wally Assembly Guide: From Parts to Robot

🔧 Wally Assembly Guide — From Parts to Robot

📦 Unboxing Checklist

• Main board × 1 + USB cable
• DC gear motors × 2 + track wheels
• Ultrasonic / infrared / grayscale sensors × 1 each
• Servo × 2 + LED strip × 1
• Buzzer × 1 + building-board pack
• Screws / nuts / washers pack + DuPont wires
• Battery box (AA × 4) × 1

🏗️ Assembly Steps

Step	Content	Time
Chassis	Frame structure assembly	20 min
Motor install	Motor + track	15 min
Main-board wiring	Fix board + connect wires	25 min
Sensor layout	Install & position sensors	20 min
Appearance	LED layout + decoration	15 min
Power-on debug	Test + upload program	10 min

⚡ Key Wiring

• Motor wires to M1 / M2 (watch polarity)
• Ultrasonic Trig → D2, Echo → D3
• Infrared obstacle: VCC-GND-OUT three-wire
• LED strip DIN to PWM pin D5 / D6

"The assembly process itself is the best learning. Children naturally grasp engineering concepts like structure, circuits, and mechanical transmission."