Temperature and Humidity Meter Using OLED Display

COMPONENTS REQUIRED-

1. Arduino NANO: https://amzn.to/2HfX5PH

2. DHT11 sensor: https://amzn.to/2HfX5PH

3. OLED display: https://amzn.to/2HfX5PH

4. Breadboard: https://amzn.to/2HfX5PH

5. Jumper Wires: https://amzn.to/2HfX5PH

Purchase links are for INDIA only.

After collecting all the required components. Download this circuit diagram for better understanding.

Put the circuit diagram in front of you and start connecting the wires.

Now, after completing the connecting open arduino IDE and select your board type and COM board. Also download and include the libraries.

Now, compile and upload the code.

CODE:

#include "DHT.h"
#include "U8glib.h" U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_NONE|U8G_I2C_OPT_DEV_0);

#define DHTPIN 2

#define DHTTYPE DHT11

DHT dht(DHTPIN, DHTTYPE, 6); char str[10];

void drawTest(void) {

u8g.setFont(u8g_font_unifont);

u8g.drawStr( 0, 30, " Temperature & ");

u8g.drawStr( 0, 50, " Humidity Meter");

u8g.setFont(u8g_font_helvB08); //

u8g.drawStr( 7, 60, "PR ROBOTICS");

}

void setup() {

dht.begin();

u8g.firstPage();

do {

drawTest();

}

while( u8g.nextPage() );

delay(3000); }

void loop() {

delay(500);

float h = dht.readHumidity();

float t = dht.readTemperature();

if (isnan(h) || isnan(t) )

{

return;

}

u8g.firstPage();

do {

u8g.setFont(u8g_font_helvB08);

u8g.drawStr( 0, 15, "Humidity:");

u8g.drawStr( 80, 15, dtostrf(h, 5, 2, str));

u8g.drawStr( 120, 15, "%");

u8g.drawStr( 0, 30, "Temperature:");

u8g.drawStr( 80, 30, dtostrf(t, 5, 2, str)); u8g.drawStr( 120, 30, "\260C");

u8g.drawStr( 10, 60, " BY: PR ROBOTICS");

}

while( u8g.nextPage() ); }

Now, just test your project.