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Intermediate

Weather station

A monitoring station that measures temperature, humidity, and air quality using multiple sensors. The Arduino collects the sensor data and displays the readings on an LCD screen in real time.

Project kit

$18.79

6 parts in one box

Unlocks the code, wiring and step-by-step guide.

Or get the kit

$42.29

ThinkNMake Maker Kit · 6 projects

Objective

To build a environmental monitoring system that measures temperature, humidity, and air quality.

How it works

The sensors collect environmental data: DHT11: Temperature (°C) and Humidity (%) MQ-135: Air quality level Arduino reads the sensor values and displays them on the LCD.

Components you'll need

ComponentQtyAvailabilityPrice
Arduino UNO R3 (compatible)×1In stock$5.19
Jumper Wire Set (120 pcs)×1In stock$2.99
MQ35×1In stock$1.99
Breadboard medium×1In stock$0.99
DHT 11×1In stock$0.99
16X2 Display with I2C Module×1In stock$2.49
Bought one by one$14.64

All of these come in ThinkNMake Maker Kit.

Circuit & connections

The full wiring diagram and pin-by-pin connections.

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Code

The complete, tested sketch (38 lines), ready to upload.

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Step-by-step instructions

6 illustrated steps:

  1. 1STEP 1
  2. 2STEP 2
  3. 3STEP 3
  4. 4STEP 4
  5. 5STEP 5
  6. 6STEP 6
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Troubleshooting

Fixes for the problems makers hit most often on this build.

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