Cherokey: A 4WD Basic Robot Building Kit for Arduino

Cherokey: A 4WD Basic Robot Building Kit for Arduino delivers a complete wheeled robotics platform designed for learning, experimentation, and rapid prototyping. This four‑wheel drive robot chassis combines mechanical structure, motor control, and sensing capability into a single expandable system suitable for education and development. Built around the Romeo (All-in-one Bluetooth Microcontroller), the kit integrates motor driving, wireless communication, and multiple sensor interfaces, enabling immediate project development without additional shields. Rich hardware expansion, including ultrasonic sensing, servo mounting, and prototyping areas, makes this mobile robotics base suitable for beginners exploring robotics as well as developers building functional robotic vehicles.

Integrated Controller and Motor Driver Architecture

This robotics development platform features the Romeo BLE controller combining an ATmega328P microcontroller, wireless communication capability, and an onboard L298P dual-channel motor driver. Integrated circuitry supports direct control of two 6–12V DC motors with up to 2A current, removing the need for external motor driver boards. Dedicated sockets for XBee and APC220 wireless modules allow quick implementation of remote communication, while compatibility with common development boards such as Arduino UNO, Mega2560, and Raspberry Pi ensures flexible integration with existing embedded systems.

Expandable Mechanical Structure for Sensor Integration

An enlarged expansion plate significantly increases available mounting space for robotic components and sensing modules. Dual servo mounting positions support either micro 9g servos or standard-sized servos, allowing installation of pan‑tilt mechanisms for ultrasonic or IR sensors. A central prototyping area with double‑sided leaf pads supports both DIP and SMD soldering, enabling custom circuitry and additional sensor interfaces. This flexible hardware layout simplifies rapid experimentation and encourages development of customized robotics functions.

Durable Aluminum Chassis for Outdoor Mobility

A high‑strength aluminum alloy frame provides mechanical stability and durability during mobile robotics applications. The four‑wheel drive chassis structure delivers reliable traction across uneven environments including grass, gravel, sand, and inclined terrain. Robust mechanical construction supports fast movement while maintaining structural rigidity during experimentation or competition scenarios. Combined with geared DC motors and rubber wheels, the robotic vehicle base offers dependable mobility for educational demonstrations, autonomous navigation projects, and robotics competitions.

Bluetooth App Control with Mobile Devices

Wireless interaction becomes accessible through Bluetooth connectivity provided by the Romeo BLE controller. Mobile device control can be implemented using the APP interface and the GoBLE mobile application. Real‑time directional commands, motion control, and experimentation with wireless robotics interaction become possible directly from an iOS device, simplifying remote robot operation and interactive robotics demonstrations.

This four‑wheel robotics kit serves a wide range of development scenarios including robotics competitions, educational laboratory experiments, and mobile robot research. With integrated sensing capability, wireless connectivity, and modular expansion, the robotic vehicle platform provides an accessible foundation for building obstacle‑avoiding robots, Bluetooth‑controlled vehicles, and custom robotic systems for STEM Education and engineering exploration.

• Complete 4WD mobile robot building kit compatible with Arduino development
• Integrated Romeo BLE controller with ATmega328P microcontroller
• Onboard L298P dual-channel motor driver supporting two 6–12V DC motors
• Maximum motor current up to 2A
• Compatible with Arduino UNO, Mega2560, Romeo, and Raspberry Pi
• Supports Bluetooth wireless control via mobile applications
• Integrated ultrasonic sensing for obstacle detection
• Servo mounting positions for pan‑tilt sensing mechanisms
• Large expansion plate with prototyping area for custom circuitry
• Double-sided solder pads supporting DIP and SMD components
• Durable aluminum alloy chassis for outdoor mobility
• Suitable for robotics competitions, prototyping, and education

• Controller: Romeo BLE
• Microcontroller: ATmega328P
• Board: Arduino UNO
• Controller Operating Voltage: 5V
• Controller Input Voltage (recommended): 7 ~ 12V
• Ultrasonic Sensor Detecting range: 4cm-3m (3-5m is possible, but depending on situations)
• Rotation range: 0 - 180
• Size(Assembled): 220mm*175mm*170mm(8.66"*6.89"*6.69")
• Weight: 772g(Excluding battery)
• Maximum Load: 500g
• TT Geared Motor Specification

• Romeo BLE (Arduino Compatible Atmega 328) x1
• DF05BB Standard Servo (5kg) x1
• URM37 V4.0 Ultrasonic Sensor x1
• URM ultrasound mounting bracket x1
• Cherokey 4WD chassis x1
• Cherokey expansion plate x1
• Aluminum side-panel x2
• Aluminum connecting-rod x4
• DC Barrel Jack Adapter - Female x1
• 5xAA battery holder x1
• PH-2.0 to DC-2.2 adapter x1
• Screws KIT x1
• Micro DC Geared Motors x4
• Motor Wire x1
• Rubber Wheels x4
• Jumper Wires 9" F/F (10 Pack) x1
• Magnet Micro USB Cable 1.2m x1

• Mobile robotics development and prototyping
• Autonomous obstacle‑avoidance robots
• Bluetooth controlled robotic vehicles
• Robotics competitions and research experiments
• Embedded systems learning and Arduino robotics practice
• STEM education robotics projects