Nov 18
This is a quick tutorial about sending and receiving SMS from/of the computer with a GSM/GPRS modem and Java.
Requirements
Introduction
It is possible to use a programming language to send Hayes Commands (aka AT commands) through the serial port to a cellphone modem, plugged into a PC . With these commands the cellphone can send SMS.
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Nov 12
Continuing in the Anemometer project, I guess I found the cheapest way to send data over the GPRS network.
The SSerial2Mobile project is a library for Arduino, to stablish a serial connection with a mobile phone.
The project web site says that they could connect with a cheap Motorola C168i.
It costs around U$27,00 plus shipping on Ebay.
I bought an used one for U$14,00 (plus U$13,00 of the shipping)
It is pretty cheap compared to the EUR$77,00 GPRS Shield for Arduino from Libelium.
Nov 11
In my last post about the Anemometer project I did mention that the LaCrosse station could be integrated in Arduino, but it would require a complex reverse engineering.
Looks like Jonathan Oxfer and his friend Marc Alexander have already implemented it. Check it out:
http://www.practicalarduino.com/news/id/171
I have previously discarded the option to integrate LaCrosse stations in my projet, due to its total cost. However, it is now back on the plan.
I still consider that this station is too expensive when compared to a DIY version, but the truth is that many people are currently using them. Altough, many are unhappy, due to the complex infrastructure needed to transmit data over the internet, as explained in the previous post.
By running a parallel project to integrate LaCrosse stations with Arduino, I could provide this “extensions” to these guys in a kind of partnership.
I would give them the ability to measure wind without their expensive computers and they would give me permission to use the anemometer measurements in my web-site.
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