robotindex ELEGOO Smart Robot Car Kit V4
An Arduino Uno-compatible, 4WD skid-steer car kit — the true beginner's entry point in this subcategory, at roughly a third of the price of anything else built here so far. No Raspberry Pi, no Python, no ROS: it's programmed in Arduino C/C++, drives by differential wheel speed rather than Ackermann or mecanum steering, and its bundled ESP32 camera streams raw FPV video for phone-based driving rather than running any onboard computer vision.
us.elegoo.com/smart-robot-car-kit-v4 →
github.com/elegooofficial (archived, no license) →
Image: ELEGOO (official)
Specs
Battery
18650 Li-ionholder included; cells NOT included — buy separately
Weight
1.23 kgper retailer (eBay) listing data; not published on ELEGOO's own site
Dimensions
20 × 17.8 × 15.2 cm~8 × 7 × 6 in, per retailer listing data; not confirmed by ELEGOO directly
Sensors
HC-SR04 on SG90 servopan-only ultrasonic sweep; IR line-tracking array
Camera
ESP32-WROVER-B, FPVraw WiFi video stream to the app — no onboard vision processing
Drive
4WD skid-steer4 independent DC gear motors, differential turning — no Ackermann
Controller
Uno R3-compatibleATmega328P; ELEGOO-branded, not official Arduino LLC
Motor Driver
L298N-familyintegrated on ELEGOO's stacked "Smart Car Shield"
Control Modes
IR, Bluetooth app, autonomousline-tracking and obstacle-avoidance demo modes included
Assembly
No solderingkeyed XH2.54 connectors reduce wiring mistakes vs. V3
Reference Price
ELEGOO's own store lists the V4.0 (With Camera) kit at $75.99, the lowest price in this subcategory, and it's also sold on Amazon, Micro Center, and other resellers. A screwdriver and tools are included, but 18650 battery cells are not, so the car can't run until batteries are sourced separately.
Insights
The Smart Robot Car Kit V4.0 has the weakest open-source story in this subcategory: ELEGOO's GitHub repo ships zipped code with no license file, an unanswered licensing question, and is now archived, so no Open Source badge is applied here.
Firmware & Community
elegooofficial/ELEGOO-Smart-Robot-Car-Kit-V4.0
ELEGOO's own GitHub repo for this kit ships code as zipped downloads with no license file and is now archived, so most ongoing development activity happens in third-party community forks instead.
Verified against ELEGOO's official V4.0 (With Camera) product pages (US and EU storefronts) and its official V4.0 and legacy V3.0/V2.0/V1.0 tutorial blog posts; ELEGOO's "About" page; its official GitHub repository for this kit, including its archived status, lack of a license file, and an unanswered licensing issue; Amazon and Micro Center listings; independent reviews from Teach Your Kids Code and The New Stack; an Arduino Forum troubleshooting thread on a common power-related failure mode; and ELEGOO's aggregate Trustpilot rating. Flagged as uncertain: exact current Amazon review volume and star rating (not independently retrievable at research time); and whether every currently-sold V4.0 unit ships with the ESP32 camera bundled by default, since ELEGOO has at points sold camera-less and camera-equipped variants under overlapping naming — this catalog's photo and specs describe the camera-equipped configuration.