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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🤖 Build, Learn, and Innovate with Every Turn!

🤖 LEARN BY DOING - Master obstacle avoidance and IR remote control through hands-on experience.
🔌 ALL IN ONE SOLUTION - Includes essential components like the R3 Board and Ultrasonic Sensor for a complete robotics journey.
📚 STEM FOCUSED LEARNING - Integrates seamlessly with Arduino IDE for a robust educational experience.
🚀 UNLEASH YOUR INNER ENGINEER - Dive into robotics with a comprehensive kit that includes tutorials and lessons.
🛠️ EASY ASSEMBLY ENDLESS FUN - Designed for quick setup, perfect for beginners and seasoned makers alike.

The Smart Robot Car 2WD Chassis Kit is an educational DIY kit designed for robotics enthusiasts. It includes a user-friendly manual with over 10 lessons, essential components like the R3 Board and Ultrasonic Sensor, and is compatible with Arduino IDE, making it perfect for STEM learning and hands-on experience.

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Product Dimensions	28 x 18 x 5 cm; 560 g
Item model number	LA-018
Educational Objective(s)	STEM
Number of Puzzle Pieces	1
Assembly Required	Yes
Batteries Required?	No
Batteries Included?	No
Material Type(s)	Acrylic
ASIN	B07YCHCQNK

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

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