The mechanical structure of 2WD Transparent Smart Motor Robot Car Battery Chassis Kit for Arduino is simple and easy to install. This car is the tachometer encoder. Can be used for distance measurement, velocity. Can use with other devices to realize the function of tracing, obstacle avoidance, distance testing, speed testing, wireless remote control. Features: Motor power supply is 3V~6V. All the parameter above is tested without load Please notice that the wooden outside is just a PROTECTION FILM. You need to TEAR OFF the yellow-brown protective paper outside the car chassis, and you will see the transparent clear car chassis inside. Please allow 1-2cm errors due to manual measurement Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same Specification: Color Transparent Watercolor For Bo Motor (Voltage) (Voltage, Current, No-load Speed, Load Speed, Torque, ) @ DC 3V 160mA, 120 rpm/min, 100 rpm/min, 0.45 kg.cm @ DC 6V 220mA, 200 rpm/min, 175 rpm/min, 1.0 kg.cm @ DC 7.2V 250mA, 250 rpm/min, 210 rpm/min, 1.5 kg.cm Reduction Ratio 1:48 Noise less than equal 65dB Motor Size 65mm x 18mm x 22mm(L*W*H) Package includes: 1 x Car Chassis 2 x DC Gear Motor(1:48) 2 x Car Tire 2 x Velocimetry Code Wheel 1 x Universal Wheel 1 x Battery Container(battery is NOT included) 4 x M3*8 Screw 8 x M3 Nut 8 x M3*6 Screw 4 x M3*30 Screw Note: Pictures are just for representational purpose and the color may vary 4 Wheel Smart Car Robot Chassis Kit with Speed Encoder is an ideal electronic toy for both kids and adults. The most economical and newest robot car kit with simple mechanical structure makes it easy to install and function well. Giving therein to your imagination with it and have fun! 4-Wheel Robot Chassis Kit, an easy to assemble and use robot chassis platform. The Chassis kit provides you with everything you need to give your robot a fast four wheel drive platform with plenty of room for expansion to add various sensors and controllers. Just add your electronics – Arduino/Raspberry Pi and Motor Driver and you can start programming your robot. It offers a large space with predrilled holes for mounting sensors and electronics as per your requirement. This robot chassis lets you get your mechanical platform ready in minutes and quickstart your robot building process. Wheeled Robots are most popular robot platforms and are easy to run, maintain and use. Simple to build and program, this kit is the simplest robot platform. Highly recommended for beginners and novice users. Building robots using this wheeled kit is fun and a great learning experience too. The 4WD Kit lets you go faster, carry more weight, and carry bigger load compared to the 2WD Kit. You can build line following robots, obstacle avoiding robots, and other robots using this kit. Features : Very handy and simple in assembling/disassembling. Strong components so as to withstand extreme terrain conditions. Transparent Car Chassis. Attractive design. Double layer structure, much of mounting holes, enough space Easy to install a variety of control panels, sensors Simple mechanical structure, easy for installation. Adopts 4 DC motors for better power, speed and load capacity Easy interface with Arduino development platform Enormous space between middle & bottom chassis This kit is great for DIY Learning, Academic Research, Hobby Projects and Robot Competitions Specifications: Product Name BO Motor Operating Voltage(VDC) 3-6V Gear Ratio 1:48 No-load speed(5V) about 200 RPM Rated Torque 0.8 Kg.cm @ 5V Load current 170mA (when it is 4.5V) Shaft Length 10 mm Shaft Type 6 mm, Double-D Size 70 x 23 x 18 mm Weight 28g Product Name BO Wheel Loading Capacity Max 2.5Kg Double D hole For BO Motor 6 mm Wheel Diameter 65 mm Color Black (Tyre), Yellow (Rim) Wheel Width 27 mm Body Material Plastic Grip Material Rubber Weight 34g Package includes: 2 x Acrylic Transparent car floor 4 x High-Quality 65-mm Plastic wheels with Rubber Grip 4 x Dual shaft 200 RPM BO Gear Motor 4 x Coded Disk 8 x Acrylic Fasteners 1 x 4-AAA Battery Holder 6 x Connecting Cable(Red and Black) 6 x M3 Copper Stand-Off (Male-Female) 6 x M3 Cross-Head Bolt (Length: 8 mm ) 8 x M3 Cross-Head Bolt (Length: 30 mm ) 16 x M3 Nut for more info please check : / /