4WD bluetooth Controlled Smart Robot Car Kit with N20 Gear Motor for

Descriptions The kit is remote control smart car kit that is designed fordevelopment When you get the parts you can assemble the car by yourself The kit can help you learnprogramming and learn how to make interesting projects such as ultrasonic distance measurement and display bluetooth remote control smart car Features Rubber tires beautiful and wearable Using the N20 geared motors small large torque long service life N20 motor has been soldered wires easy to use The car chassis has been soldered regulator circuit and motor drive module can be directly connected to motors Car chassis can installUNO R3 and compatible motherboard Digispark Motherboard You can install the HC SR04 ultrasonic sensor You can install bluetooth wireless transceiver modules etc It is suitable for the DIY smart car project Specifications About the wheels Tire color black Tire diameter 47mm Tire width 12mm Inner diameter 3mm motor with D axis and 3mm shaft diameter such as N20 motor About the motor Operating voltage 3V 9VDC No load speed 75 rpm 3V 150 rpm 6V No load current 20mA 3V 30mA 6V Reduction ratio 1 100 Shaft diameter D type 3mm Shaft length 10mm Rated torque 0 35kg cm Locked torque 2 4kg cm Length 15cmPackage Included 1 x4WD Smart Robot Car Kit