Make: Robotic Arms

32 Make: Robotic Arms

WHAT ARE WE BUILDING?

In our first project in chapter 2, we’re going to take the foundation we learned

in chapter 1 and build on the concepts to produce our first full robotic arm!

By adding some structural components and a second motor, we can go from

simply telling a single motor to go to a single angle to manipulating the

position of a simple two-link, two-DOF robotic arm.

STEP 1

First, we need to wire up two servo motors to our Arduino. Recall from

chapter 1 that we’ll need to use a PWM-capable pin. In this next example,

we’ll be using pins 3 and 5. Other than that, our circuit will look much like

our previous examples. ...