
10 Make: Robotic Arms
both are made available by individual pins in the board’s power-pin section.
Similarly, we typically refer to the negative connection as ground, often
abbreviated as GND. There are a few other pins in this section, such as Vin
(“voltage in”), which lets us plug in batteries to make our projects mobile.
Let’s take things one step further, using all the helpful info we’ve just
covered, and build our first simple circuit. Here, we’ll begin by wiring up our
servo and telling it to move to a specific angle.
Thankfully, our first circuit is pretty straightforward, given that the servo
has just three wires. Your red wire will be ...