OverviewEquip your micro bit with this 4 DOF metal robot arm and get started to explore the world of artificial intelligent robotic This starter robotic arm kit includes servo driver board metal mechanical arm structure and 4x metal gear servos When used with the micro bit it is easy to control the arm by smart phone through Bluetooth connection The Servo DriverAdopts Servo Driver for micro bit micro bit edge connector directly pluggable I2C controlled using only 2 pins Up to 16 Channel servo PWM outputs 12 bit resolution for each channel 4096 scales Integrates 5V regulator up to 3A output current can be powered from battery through VIN terminal Standard servo interface supports common used servo such as SG90 MG90S MG996R etc Reserved I2C control pins allows to work with other control boards Comes with development resources and manual micro bit graphical examples like Bluetooth 2 4G wir eless remote control The Robot Arm Structure 4 DOF large solid base metal mechanical grasper Full aluminium alloy body sandblasting oxidation surface strongdurable Clever mechanical structure and mounting design agile to control easy to build Fitted with 4x metal gear servos 1x MG996R 3x MG90S large torque force smooth movingManual and APP source other information click here Package 1 Robot Kit1 MG996R Servo3 MG90S Servo1 MG996R Servo Plate1 5V 3A Adapter1 150MM Servo Wire2 Screwdriver1 Scerw SetControl Board selectable