Make: Robotic Arms

36 Make: Robotic Arms

STEP 12: TESTING OUR MOTORS

#include <Servo.h>

Servo servoOne;

Servo servoTwo;

int randomOne;

int randomTwo;

void setup() {

servoOne.attach(3);

servoTwo.attach(5);

randomSeed(analogRead(A0));

randomOne = random(45,90);

randomTwo = random(90,180);

servoOne.write(randomOne);

servoTwo.write(randomTwo);

}

void loop() {

}

Here, in this first test code, what we’ve written

looks a lot like our previous example. This time,

however, there’s one key difference: the code

we need to generate random numbers we can

then use as input angles for our .write()

commands for our servos. The first few lines of

code establish our servos, just like before. In ...