should this kit have come with male connectors or are those ordered separately?

The sensor shield board that sits on top of the UNO board has pins, so the female connections on the connection wires work fine. My kit came with a strip of male-male connectors also, but I did not use them.

what batteries are needed?

You need to use 3.7V 18650 batteries.

Is the r3 board is a arduino uno board? the board in the picture does not have any description on it.

Yes,It is with arduino uno board.

How many batteries are needed? And what is the final voltage coming out of the battery box?

I think this came with a 2-cell battery pack which fit the 3.7V 18500 Li-ion cells (7.4V total). At first I switched it out for a 6 cell AA holder, but later got some 18500 cells and charger and really liked using them. This is a nice project kit. Enjoy.

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LAFVIN Smart Robot Car 2WD Chassis Kit with Ultrasonic Module R3 Board,Remote Compatible with Arduino IDE DIY Kit

LAFVIN Smart Robot Car 2WD Chassis Kit with Ultrasonic Module R3 Board,Remote Compatible with Arduino IDE DIY Kit

Product ID: 162683991

📡HC-SR04 ultrasonic obstacle sensor

🤖2WD smart robot chassis

🛠️R3 Arduino-compatible control board

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€ 57.66

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Description

🤖 Build Smarter, Code Faster, Lead Tomorrow’s Tech!

FUTURE PROOF STEM EDUCATION - Perfect for millennials managing tech-savvy kids or upskilling in IoT and robotics.
COMPREHENSIVE DIY EXPERIENCE - Includes remote control, line tracking module, and all hardware for full robotics immersion.
PLUG PLAY ROBOTICS MASTERY - Easy-to-assemble 2WD chassis kit with clear tutorials for fast hands-on learning.
NEXT LEVEL OBSTACLE AVOIDANCE - Integrated ultrasonic sensor empowers real-time environment detection and smart navigation.
SEAMLESS ARDUINO IDE COMPATIBILITY - R3 board and libraries included for smooth coding and customization.

The LAFVIN Smart Robot Car 2WD Chassis Kit is a compact, Arduino-compatible robotics DIY kit featuring an R3 control board, ultrasonic obstacle avoidance sensor, and remote control. Designed for easy assembly and STEM education, it includes comprehensive tutorials and all necessary components to jumpstart hands-on learning in robotics and coding.

Specifications

ASIN	B07YCHCQNK
Age Range Description	Kid
Battery Description	Battery
Best Sellers Rank	#334 in Single Board Computers (Computers & Accessories)
Brand Name	LAFVIN
Customer Reviews	3.7 out of 5 stars 224 Reviews
Educational Objective	Obstacle Avoidance
Is Assembly Required	Yes
Item Dimensions	11.02 x 7.09 x 1.97 inches
Item Weight	0.56 Kilograms
Manufacturer	LAFVIN
Manufacturer Part Number	LA-018
Material Type	Acrylic
Model Number	LA-018
Size	18 cm x 28 cm x 5 cm
Theme	Car,Robot
UPC	763231735898

Reviews

R**1

22.12.2020

H**A

22.08.2020

A**Y

22.03.2025

C**E

2.05.2025

J**B

11.03.2021

M**D

19.04.2026

J**N

29.08.2020

L**D

29.03.2020

S**K

31.12.2025

Y**A

11.03.2026

V**I

4.05.2024

Y**A

8.03.2025

R**E

2.07.2025

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€ 57.66

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In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Italy.

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