Temperature & humidity meter using Arduino

It is a tutorial to make a hygrometer circuit using arduino & DHT 11

You can monitor your real-time room temperature & humidity using it. here I have used 2 seven segment display, Arduino nano & Dht 11 temperature & humidity sensor

You need to make :

  • Arduino Nano
  • Doted vero board
  • 2 pcs 7 segment display
  • Dht 11 temperature & humidity sensor
  • female header pin
  • 9v battery or power bank
  • wire

Connection :

Pin 3&8 is common gnd pin of 7 segment display

Pin configuration of 7 segment dispaly

Connect 1st Display to arduino nano –

Display Pin 7 to Arduino Digital pin 2
,, 6 to D3
,, 4 to D4
,, 2 to D5
,, 1 to D6
,, 9 to D7
,, 10 to D8
,, 3&8 to ARDUINO D 9

Connect 1st display to 2nd display

1st display – 2nd display

7 to 7
6 to 6
4 to 4
2 to 2
1 to 1
9 to 9
10 to 10

Pin 3&8 to Arduino digital pin D10

Connect Dht 11

vcc to arduino 3.3v

GND to arduino GND

Out to arduino digital pin 11

Download code & library from here

Video tutorial video of this project

8 Comments

  1. Measuring temperature and humidity with Arduino and uploading it to the server.IOT technology was used to measure the temperature and humidity values of the temperature and humidity sensor and to design a device for uploading the internet through the WiFi module.

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