weatherStation

Overview

This is a simple Weather Station having the following sensors:

• Temperature sensor
• Humidity sensor
• Wind Speed sensor

Currently the Station uses the NodeMCU V3, with the embedded ESP8266 WiFi Module. For this reason, the station can only have one Analog Input, and the port is wired to the Wind Speed sensor.

The next version will use the ESP32, that has 18 Analog Inputs, yes, a lot of pins! Having such a number of analog inputs i'll be able to connect a lot of analog sensors, and i'm planning to add:

• Light sensor
• Rain sensor
• Barometer
• Pyranometer
• CO2 sensor

The UI

The UI was built using ThingSpeak that offers an API to populate the various Widgets

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Parts used

• NodeMCU V3 with ESP8266 WiFi Module
• One 10k Ohm resistor
• DHT11 Temperature/Humidity sensor (I don't like this sensor, if you are planning to build something like this, use another sensor)
• 5V DC motor (Used for the Wind Speed Sensor, agin, do not use this method. The next version will use a Magnetic Sensor to compute the wind speed)
• A 3D Printer (mh, that's crucial)

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3D Project

The project is available on Thingiverse, or there is a Folder where all files are uploaded. The project consists of two main parts:

Arduino case

The case only has room for the NodeMCU and the DHT11 sensor. Moreover, the case has an hole on the left side for the external Wind Sensor and a vent on the right for the DHT11 sensor.

Wind Speed Support

The wind speed sensor is supported by a 3D printed part mounted on the wall. This part should be printed in a weather resistant material, such as PETG or ABS, don't use PLA. Moreover, the "blades" are 3D printed too.

MATLAB

We can use MATLAB scripts to analyze our data:

Histograms

That computes:

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Some Pics

video_compressed.mp4