Data Sheet

Robot Arm for micro:bit User Manual
OVERVIEW
Equip 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.
HARDWARE
Servo Driver for micro:bit and 5V 3A power adapter are included in this kit. You need to connect the
power adapter to the POWER interface to feed Servo Driver board and servos. With regular onboard,
it can also offer 3.3V power for micro:bit without external power input.
The pins on the top are servo interfaces. Black pins for GND (generally, ground pin of servo are
brown), red pins for 5V, yellow pins are PWM pins. This board have channels 0~15, supports up to 16
servos work at the same time. DO NOT wrong connect servos.
【Note】
1. You cannot power the whole Robot Arm kit by micro:bit.
2. You need assemble the Robot Arm kit, before you assemble, please test if the servo work
normally
3. Please set all servos to position that rotate 90 degree before you assemble it.