4WD bluetooth Control Smart Robot Car Kit with Motherboard & N20 Gear Motor forUNO R3 Nano

Descriptions The kit is based on the OPEN SMART UNO R3 developed smart car kit It includes a UNO R3 compatible PCB chassis motor drive circuit bluetooth transceiver module ultrasonic ranging module which makes it easy to install UNO R3 or other compatible motherboards This kit helps you learn UNO R3 programming and learning to create interesting projects such as ultrasonic ranging and display bluetooth remote control smart car The Product will be shipped in bulk It needs you to DIY by yourself Features Rubber tires beautiful and wearable Use N20 gear motor small size large torque long life N20 motor has soldered leads for easy use Car chassis has been welded voltage regulator circuit and motor drive module can be directly connected to the motor Car chassis can be fitted with UNO R3 and its compatible motherboard Digispark motherboard Ultrasonic sensor HC SR04 can be installed You can use the bluetooth wireless transceiver module directly for control or you can use other wireless modules such as infrared NRF24L01 transceiver module 433M remote control kit Ideal for DIY Smart Robot Projects Reference documents click downloadSpecifications Battery Two 14500 3 7V lithium batteries Rubber wheel 47X12mm inner diameter 3mm for N20 gear motor N20 DC geared motor with wire 150RPM 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 leng