In my previous post I managed to program the chips in the Canopy. Now I can adjust the code inside the Canopy where needed. Next thing to get working is to allow the Raspberry Pi to talk to the chips inside the Canopy.
Raspberry Pi, Atmel AVR and serial communications
Luckily the Raspberry Pi has a serial port, because the AVR controllers I used have one too, and they use this serial port to get commands from whoever is controlling the bus… Which should be the Raspberry Pi.
Problem is that the Raspberry Pi does not have a true RS232 serial port: the signals are there (on the GPIO headers), but they have 0-3.3V levels Read more
In version 1.0 of the paludarium, I had fetched an entire year of data, and I put that into the controlling software. That software in turn simulated that year of weather over and over again. But wouldn’t it be the coolest thing if I managed to pull the meteorologic data live from the web? With the Raspberry Pi I figured it should be possible. Todays goal was to fetch live meteorologic data from the La Selva biological station in Costa Rica. After some fighting with basic Python, I managed to get it going!
Where the data is
The data is actually freely available here: http://www.ots.ac.cr/meteoro/default.php?pestacion=2.
La Selva Biological Station in Costa Rica – Home of the meteo station who’s data I’ll be using!
I found out you can build a URL that will fetch half-hour data for one entire day. As an example: Read more
Unbelievable what can be accomplished in only two hours. Today I finally unpacked my Raspberry Pi and started to play with it. Pretty soon I had it up and running… This is going to work out just fine 🙂
Getting the Raspberry Pi to boot
The Raspberry Pi. This will be the new brains behind the Paludarium v2.0!
I just typed up the downloads page at raspberry.org, found the tool to Read more