Make: Robotic Arms

Microcontrollers

Chips, with or without a development board,

designed to take instructions from code

and use them to control various inputs and

outputs. Inputs can take the form of things

like sensor data, and outputs can create

things like light, sound, or motion.

6 Make: Robotic Arms

send signals to things like motors. They can also

serve as inputs, taking in information from sensors

that tell our robotics projects about the outside world

or allow us to send control signals to motors.

On an Arduino, these pins are typically labeled D3,

A0, GND, and so on, and though they may be general

purpose, not every pin can perform every task—some

pins have ...