DHT 22 Very Confused

Good day.

I am attempting for the first time to use my arduino along with a DHT22 sensor.

I installed the DHT library and DHT Sensor Master Library.

I then ran into issues with adafruit coming up as an error.

I installed adafruit to a folder and still nothing but massive errors.

#include "DHT.h"

#define DHTPIN 2     // what digital pin we're connected to

// Uncomment whatever type you're using!
//#define DHTTYPE DHT11   // DHT 11
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
//#define DHTTYPE DHT21   // DHT 21 (AM2301)

// Connect pin 1 (on the left) of the sensor to +5V
// NOTE: If using a board with 3.3V logic like an Arduino Due connect pin 1
// to 3.3V instead of 5V!
// Connect pin 2 of the sensor to whatever your DHTPIN is
// Connect pin 4 (on the right) of the sensor to GROUND
// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor

// Initialize DHT sensor.
// Note that older versions of this library took an optional third parameter to
// tweak the timings for faster processors.  This parameter is no longer needed
// as the current DHT reading algorithm adjusts itself to work on faster procs.
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  Serial.println("DHTxx test!");

  dht.begin();
}

void loop() {
  // Wait a few seconds between measurements.
  delay(2000);

  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  float h = dht.readHumidity();
  // Read temperature as Celsius (the default)
  float t = dht.readTemperature();
  // Read temperature as Fahrenheit (isFahrenheit = true)
  float f = dht.readTemperature(true);

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  // Compute heat index in Fahrenheit (the default)
  float hif = dht.computeHeatIndex(f, h);
  // Compute heat index in Celsius (isFahreheit = false)
  float hic = dht.computeHeatIndex(t, h, false);

  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.print(" *C ");
  Serial.print(f);
  Serial.print(" *F\t");
  Serial.print("Heat index: ");
  Serial.print(hic);
  Serial.print(" *C ");
  Serial.print(hif);
  Serial.println(" *F");
}

Error Message:

Arduino: 1.8.3 (Windows 10), Board: "Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)"

In file included from \Arduino\libraries\adafruit_sensor\DHT_U.h:25:0,

from \Documents\Arduino\libraries\adafruit_sensor\DHT_U.cpp:22:

^

\Documents\Arduino\libraries\adafruit_sensor/Adafruit_Sensor.h:596:152: error: expected unqualified-id before '<' token

#include "Arduino.h"

I removed hundreds of lines.

I have no idea where to go now as I have been playing for hours and hours and it only seems to be getting worse.

any help is appreciated, and yes I have watched a ton of youtube videos. ^

Documents\Arduino\libraries\adafruit_sensor/Adafruit_Sensor.h:596:195: error: expected unqualified-id before '<' token

#include "Arduino.h"

^

\Documents\Arduino\libraries\adafruit_sensor/Adafruit_Sensor.h:600:152: error: expected unqualified-id before '<' token

#include "Print.h"

^

Documents\Arduino\libraries\adafruit_sensor/Adafruit_Sensor.h:600:193: error: expected unqualified-id before '<' token

#include "Print.h"

^

Documents\Arduino\libraries\adafruit_sensor/Adafruit_Sensor.h:608:152: error: expected unqualified-id before '<' token

#include "WProgram.h"

^

Documents\Arduino\libraries\adafruit_sensor/Adafruit_Sensor.h:608:196: error: expected unqualified-id before '<' token

#include "WProgram.h"

^

Documents\Arduino\libraries\adafruit_sensor/Adafruit_Sensor.h:751:72: error: expected unqualified-id before '<' token

} sensors_type_t;

^

\Documents\Arduino\libraries\adafruit_sensor/Adafruit_Sensor.h:751:114: error: expected unqualified-id before '<' token

} sensors_type_t;

^

exit status 1
Error compiling for board Arduino/Genuino Mega or Mega 2560.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

It looks like you have HTML code in your library. Did you copy-paste from a webpage or something?

Erase the library completely (delete the folder) and re-install from a .zip file copy of the library. The library manager in Arduino may be able to find this one for you so you can install from there.

Reinstalled the software and now we are up and running.

Now I will attempt to get my waterproof sensor working.

Thanks