Elegoo Smart Robot Car Kit product image

Elegoo Smart Robot Car Kit

Nerd Approved:
(4/5)
Review by Joshua Morris on
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Review

We rebuilt the Elegoo V4.0 kit this summer and it’s still the quickest way to teach sensors plus Arduino basics. The new keyed wiring harness meant my kids could plug everything in without soldering, and the illustrated manual walks through each stage from chassis assembly to ultrasonic obstacle avoidance. After running the stock line-following demo we extended it with Bluetooth control via the Elegoo app and a custom MQTT sketch so it could stream distance readings back to my home lab. The included 2000mAh lithium pack powers roughly two hours of line tracking; we swapped to high-capacity cells for longer rover missions and filed the acrylic edges for comfort. For under sixty bucks you get motors with encoders, IR tracking, ultrasonic ranging, Bluetooth, Wi-Fi FPV, and an Arduino-compatible brain—perfect for a weekend STEM build.

✓ Pros

  • ✓Keyed connectors mean no soldering or wiring guesswork for beginners
  • ✓Bundle includes IR tracking, ultrasonic ranging, encoders, Bluetooth, and Wi-Fi FPV
  • ✓Arduino-compatible codebase is easy to extend with custom sketches or MQTT
  • ✓Companion app simplifies remote control, calibration, and camera streaming
  • ✓Excellent value for a reusable weekend STEM project with real sensors

✗ Cons

  • ✗Runs about two hours on the included lithium pack—longer missions need spares
  • ✗Acrylic edges benefit from a quick sanding to avoid sharp corners
  • ✗You still need some Arduino familiarity to customize behaviors beyond the tutorials

Specifications

TypeArduino-based smart car kit (V4)
SensorsUltrasonic, IR line follow, encoders, Bluetooth, Wi-Fi FPV camera
Motor4-wheel DC gear motors with encoders
Battery2000mAh lithium pack (USB rechargeable)
ProgrammingArduino IDE, Elegoo app, graphical blocks

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