First tests

Hello everybody,

good to see you there. Today I have an update. My brother in Italy is helping me to go on with this project and has released a first code of the Arduino weather station. This code allows to test the temperature, humidity and pressure sensor with the ethernet and a PC on the other side. In this post I will present you only the Arduino code and not the program realized on the server.

At this link of github you can find the Arduino code which is successfully tested for days on my Arduino Ethernet (not the Ethernet shield, I don’t know if it’s work as well on the shield, if you try let me know please!)

I attach also some pictures of the Arduino under test.

Have a nice Arduino! XD

The pressure sensor BMP085

Hi everybody!

Recently I had a little time even to program my Arduino and now I’m here writing a new post. What I did was the library to use the sensor BMP085 that I bought for the weather station. It’s my first library so it is not so sophisticated, I am limited to rearrange the test code of SparkFun; everything works on IDE 1.0 and a version of Debian testing I’ve just upgraded from Ubuntu.

The requirements for use this library are:

• Use an Arduino with I2C interface (The Arduino Ethernet I use have one)
• A little trick in the code, when you call the library you must do like the code above:

void setup() {
  Wire.begin();  //be sure that this command is before the BMP085 init
  myBMP085.init();
  ...
 }

For any questions comment please!

You can download the library in the “My Arduino Libraries” page

Weather station with Arduino

Hi!

With this post I begin the weather station made with arduino.

Actually I bought an Arduino Ethernet (it contains an ethernet port and a microSD slot for record data), a temperature and humidity sensor and a pressure sensor.

To use Arduino I use Ubuntu 11.10 and the Arduino IDE 1.0 (you can find on the Arduino webpage), both at 64bit. To program the Arduino Ethernet I use the USB FTDI cable and with this last version of Arduino IDE you have not to burn a new bootloader.

At the moment I only tested the humidity and temperature sensor RHT03 (also called DHT22) with this library avaible at this link. But for use this library with last version of Arduino IDE I have to change the code in the DHT22.cpp file:

43: #include "DHT22.h"
44: #include "pins_arduino.h"
45:
46: extern "C" {
47:   #include "WConstants.h"
48:   #include <avr/io.h>
49:   #include <avr/interrupt.h>
50:   #include <avr/pgmspace.h>
51:   }

to:

43: #include "DHT22.h"
44: #include "pins_arduino.h"
45: #include "Arduino.h"
46:
47: extern "C" {
48:   #include <avr/io.h>
49:   #include <avr/interrupt.h>
50:   #include <avr/pgmspace.h>
51:   }

With this change everything works!

Bye! Stay tuned!