Make: Robotic Arms

28 Make: Robotic Arms

STEP 3

Now that we are able to read the values coming from our potentiometer, as

well as store the values in a variable, the next thing we need to do is scale

the numbers to a more usable range. Keep in mind that the potentiometer

is looking for an input number from 0 to 180, so the data as we have it now

won’t be super useful to us. Thankfully, there exists the perfect solution: the

map() command, which will allow us to scale the range of numbers from

the potentiometer into a more useful range. Let’s remix our code, adding the

map() command:

#include <Servo.h>

int pos;

void setup() {

Serial.begin(9600);

}

void loop() {

pos =