---
title: "How To Make An Mini IOT Weather Station"
url: "https://maker.wiznet.io/george/projects/How-To-Make-An-Mini-IOT-Weather-Station/"
markdown_url: "https://maker.wiznet.io/george/projects/How-To-Make-An-Mini-IOT-Weather-Station/md"
type: "UCC: User Created Content"
author: "george"
author_url: "https://maker.wiznet.io/george/"
original_author: "george"
original_url: "https://create.arduino.cc/projecthub/FunguyPro/how-to-make-an-mini-iot-weather-station-58252d?ref=search&ref_id=Ethernet%20Shield&offset=41"
published: "2019-04-02"
language: "en"
hardware: ["Arduino Nano R3", "DHT11 basic temperature-humidity sensor + extras RoHS Compliant"]
likes: 0
views: 475
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# How To Make An Mini IOT Weather Station

> How To Make An Mini IOT Weather Station

Original author: george (source: https://create.arduino.cc/projecthub/FunguyPro/how-to-make-an-mini-iot-weather-station-58252d?ref=search&ref_id=Ethernet%20Shield&offset=41)

## Components

- **Arduino Nano R3** x 1 ([docs](https://www.farnell.com/datasheets/1682238.pdf))
- **DHT11 basic temperature-humidity sensor + extras RoHS Compliant** x 1
- Software: **Arduino IDE** ([docs](https://www.arduino.cc/en/software))
- Software: **Blynk** ([docs](https://blynk.io/))

## Documents and links

- [Code snippet #1](https://create.arduino.cc/projecthub/FunguyPro/how-to-make-an-mini-iot-weather-station-58252d?ref=search&ref_id=Ethernet%20Shield&offset=41#code) (code)
- [Code snippet #2](https://create.arduino.cc/projecthub/FunguyPro/how-to-make-an-mini-iot-weather-station-58252d?ref=search&ref_id=Ethernet%20Shield&offset=41#code) (code)

## Article

Let's make a little portable IoT weather station for under $20 using Arduino and the Blynk library! It uses the 433Mhz transmitter so if you want you can use multiple clients like a LCD screen in your living room and another in your kitchen. I made the code simple enough that most people can hack it to do whatever they want... Lets get started making! You will need the following parts:

- 433Mhz Tx and Rx

- Arduino Uno

- Arduino Ethernet Shield

- Arduino Nano

- DHT11

- 4x AAA battery pack

- Wires

---

Source: https://maker.wiznet.io/george/projects/How-To-Make-An-Mini-IOT-Weather-Station/