ELEGOO UNO R3 Smart Robot Car Kit V4: features, contents and who it suits

The ELEGOO UNO R3 Smart Robot Car Kit V4 is a build-it-yourself robot car for learning programming, electronics and robotics. It is based on an UNO R3 board, a common beginner microcontroller board that is compatible with Arduino, so what you learn carries over to a wide range of other projects.

What's in the kit

ELEGOO says the kit includes 24 kinds of module parts. These include an obstacle avoidance module, a line tracing module and an infrared remote control, and the car can also be controlled from Android and iOS phones and tablets. The packed kit is about 8.0 x 7.0 x 6.0 inches and weighs 2.7 lb.

How obstacle avoidance and line tracing work

Obstacle avoidance typically uses a distance sensor, often ultrasonic, that measures how far away an object is, so the program can steer around it. Line tracing uses sensors that tell dark from light surfaces, so the car can follow a line on the floor. These are classic first robotics projects because they show how sensors, code and motors work together in a loop.

Easier assembly

All module interfaces have been changed to XH2.54 ports. These are keyed connectors, so cables typically fit only one way. ELEGOO says this makes the car easier to assemble and lowers the chance of wiring errors, which matters for first-time builders.

Tutorials and code

The kit comes with HD rendered instructions showing how to assemble the car from scratch, and the programs and code needed. Working from supplied code first and then changing it is a typical way to learn: you see the car work, then change a value and observe the result.

Who it suits

ELEGOO gives an applicable age of 8 and up. It also notes that using its starter kits requires basic electronics knowledge, and that a beginner with no experience is better off with someone to lead and teach them. That makes it a good fit for a parent and child working together, for a classroom or club, or for a teen or adult new to Arduino-style boards.

What to check before you buy

• Experience level: the brand recommends a guide for complete beginners.
• Phone or tablet: confirm your device runs the control app.
• Computer: you will typically need one to write and upload code to the board.
• Batteries: check what power the car needs and what is included.
• Workspace: allow a clear table and a floor area for testing.
• Small parts: supervise younger builders, as the kit has many small components.
• Tools: check the manual for any tools needed.

The short version

• Robot car kit with an UNO R3 board, model US-EL-KIT-012, from ELEGOO.
• 24 kinds of module parts, including obstacle avoidance and line tracing.
• Infrared remote and Android or iOS control.
• XH2.54 ports to simplify wiring, with assembly instructions and code included.
• Stated age 8+; basic electronics knowledge or a guide is advised.

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