Advanced AI Brain
Real-time decision making, sign reading, obstacle avoidance, and contextual understanding.
Two-Way Voice Interaction
Speak to the train – it listens, processes, and responds with natural voice.
Live Dual-Camera Feed
Onboard wide-angle view + dedicated OCR camera for reading track signs.
Smart Auto-Charging
Detects low battery → returns to docking station → charges via solar power.
Per-Carriage Monitoring
Temperature sensors in every carriage – real-time safety alerts.
Intelligent Routing
Motorized points switch automatically based on AI decisions and voice commands.
Solar Charging Station
Stationary solar panel keeps the batteries topped up when parked.
Live Multi-Angle Streaming
Onboard view + static cameras around the layout – full immersive experience.
Object Detection
Real-time YOLO-powered detection of obstacles, track issues, and layout elements.
Live Overlays
Dynamic on-screen data: speed, battery, temperature, location, and more.
GPS Tracking
Real-time location logging and overlay for precise journey mapping.
Modular Expansion
Easily add new features, sensors, or carriages for future upgrades.
Limited sponsorship slots available – get your brand on a live AI-powered LEGO train!
Full Components List
Core Microcontroller & Control
- Raspberry Pi Pico 2 W — 1×
- Raspberry Pi 5 (8 GB) — 2×
Motor & Drive System
- LEGO Powered Up Train Motor (88011) — 2× (front + rear)
- Raspberry Pi Build HAT — 1×
- Raspberry Pi Build HAT Power Supply (8 V DC adapter) — 1×
Power System
- Protected 18650 batteries (3000 mAh) — 8–10×
- Slim 18650 holders (single-row / 3-in-line) — 2–4×
- 2S BMS 10–20 A — 2×
- TP4056 charger module — 6×
- Buck converter (5 V 5–8 A) — 2×
- Boost converter (7–9 V) — 1× (optional)
- Decoupling capacitors — 10–20×
- USB-C breakout / short 5 A cable — 2×
- Schottky diode (1N5819) — 4×
Temperature Monitoring (Per Carriage)
- BME280 I²C sensor module — 6×
- I²C multiplexer (TCA9548A) — 1×
- Thin jumper wires (28–30 AWG) — extra pack
Sensors & Detection
- TCS34725 RGB color sensor — 1×
- KY-003 Hall sensor — 6×
- Reed switch module — 4×
- KY-018 photoresistor — 1×
- HC-SR04 ultrasonic — 1×
- KY-032 / FC-51 IR obstacle — 3×
- MFRC522 RFID reader — 1×
- MPU6050 accel/gyro — 1×
- NEO-6M GPS module — 1×
- External GPS antenna — 1×
Headlight & Audio
- 5 mm ultra-bright white LED — 2×
- 100–220 Ω resistors — 10×
- Active buzzer / piezo — 1×
Speech AI
- ReSpeaker 2-Mics Pi HAT — 1×
- MAX98357A I²S amp + 3–5 W speaker — 1 set
- 3.5 mm / I²S wires — 1× set
Camera System
- Raspberry Pi Camera Module 3 Wide — 1×
- Raspberry Pi Camera Module 3 Standard — 1×
- CSI cables (22-pin Pi 5) — 2× + spares
Cooling
- Raspberry Pi Active Cooler — 2×
- AI HAT+ heatsink (included) — 1×
- Ventilated case / open mount — 2× (optional)
Motorized Points / Turnouts
- Micro servo motors (SG90 / MG90S) — 4–8×
- PCA9685 16-channel PWM servo driver — 1×
- Servo extension cables / jumper wires — 1 pack
- 3D-printed / LEGO linkage arms — 4–8×
Wiring & Tools
- Jumper wires assortment — 2–3 packs
- Breadboard — 2×
- Resistors assortment — 1 pack
- Logic level shifter — 1×
- Multimeter — 1×
Solar Station
- Foldable 20–50 W solar panel — 1×
- MPPT controller with USB — 1×
VPS / Streaming & Advertising
- Hetzner Cloud VPS (CPX31 / CX41) — 1× (~£6–10/month)
- Domain name (airail.co.uk) — 1×
Fringe / Spares
- Relay module — 1×
- Pogo pins / copper tape — 8× + tape
- Neodymium magnets — 10×
- RFID tags — 10×
- Heat shrink tubing — 1 pack
- Soldering kit — 1 set
- Mounting hardware — assortment
Limited sponsorship slots available – get your brand on a live AI-powered LEGO train!