Arduino Weather Station

Intro

I built an Arduino Weather Station. It uses a DHT 11 (it will also work with DHT21 DHT22).

Video

I explain everything in this video. So it might be easier for you if you watch it!

First Sketch

The first sketch displays the sensor values to the Serial Monitor.

Sensor:

• pin 1 - 5

• pin 2 - 5v

• pin 3 - GND

Second Sketch

In this sketch we are going to display the values onto an LCD. I used an I²C LCD for this project.

Sensor:

• pin 1 - 5

• pin 2 - 5v

• pin 3 - GND

LCD:

• SDA - A4

• SCL - A5

• GND - GND

• VCC - 5V

Third Sketch

The final sketch also displays a realtime clock to the LCD. It uses a DS1302 module. For more information about this clock you can check out the Arduino clock I made in a previous project.

Sensor:

• pin 1 - 5

• pin 2 - 5v

• pin 3 - GND

DS1302:

• RST - 2

• DATA - 3

• CLK - 4

LCD:

• SDA - A4

• SCL - A5

• GND - GND

• VCC - 5V

Code

The code can be found by the CODE part of this project. Libraries are in a map. You have to first unzip the map. Then install them.

First sketch

Upload the sketch: TEST. Libraries needed: Adafruit_Sensor-master, DHT-sensor-library-master .

Second sketch

Upload the sketch: LCD

Libraries needed: NewliquidCrystal, Adafruit_Sensor-master, DHT-sensor-library-master

Third sketch

Upload the sketch: LCDCLOCK

Libraries needed: DS1302, NewliquidCrystal, Adafruit_Sensor-master, DHT-sensor-library-master

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