1、With various motors, encoder and sensor ports, and convenient connectors, it is possible to write programs to control the behavior of the robot 2、The product is a powerful and easy-to-use learning tool 3、Compatible with many compilers, easy to operate 4、The data cable can make sure the stability of connecting 5、Complete accessories, easy to install and connect 1 x Circuit Board 1 x Data Cable 4 x 5/16" Hex Socket Screw 4 x Toothed Nut Item Type: Robot Mini ControllerProcessing Unit Main Parameters: Number of Processing Unit: 3Processing Unit Model: For ATmega328Programming Memory: 32KBClock Frequency: 20MHzBuilt-in BootLoader: OptibootMain Parameters of Control Board: Input Voltage: 6VWorking Voltage: 5VBattery Positive and Negative Port: 1Onboard Power Switch: 1Type B USB Programming Port: 1Standard Servo Control Ports: 6DC Motor Control Port: 2Motor Port Maximum Load Current: 4AQuadrature Encoder Input Port: 2Digital Output Ports: 3Digital Input Ports: 3Analog Output Ports: 3Analog Input Ports: 3I2C Communication Port: 1Programmable Start Button (green): 1Non-programmable Stop / Reset Button (red): 1Programmable Onboard LED: 3pcs, red, yellow, green