Project 13, library error!

Official Hardware Kits Starter Kit
1

I can't really use the CapacitiveSensor header.

Here's my code (copied from the book):

#include <CapacitiveSensor.h>
CapacitiveSensor capSensor = CapacitiveSensor(4,2);

int threshold = 1000;
const int ledPin = 12;

void setup(){
  
  Serial.begin(9600);
  pinMode(ledPin, OUTPUT);
  
}

void loop(){
 long sensorValue = capSensor.capacitiveSensor(30); 
 Serial.print(sensorValue);
 
 
 if(sensorValue > threshold){
   digitalWrite(ledPin, HIGH);
 }
 else{
   digitalWrite(ledPin, LOW);
 }
 delay(10); 
 
}

So, two questions:

  1. How can I fix the header bug, so that Arduino recognizes this: "#include <CapacitiveSensor.h>"?

  2. Do I need to hook the sensor wire to something specific provided in the Starter Kit, or can I connect it to anything conductive?

Thanks in advance!

2

You need to install a library. Read the instruction in the paragraph labeled "Preparing the library" on page 137.

3

Thx!