Make: Robotic Arms

71Chapter 4: More Links, More Precision

#include <Servo.h>

Servo servoOne;

Servo servoTwo;

void setup() {

servoOne.attach(3);

servoTwo.attach(5);

}

void loop() {

servoOne.write(135);

servoTwo.write(45);

}

STEP 6

Find the robotic-arm component labeled “Four

Link: Link One.” It will have a servo connection on

one side of the link and a simple hole on its other

side, as shown at upper right (Figure

4-5

).

STEP 7

Attach one of these links to servo 1 with the motor

located on the left. (Take care not to accidentally

rotate the output shaft as you bolt the links onto

the metal servo connectors.)(Figure

4-6

).

STEP 8

For this next step, you’ll need a few new

components: ...