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Weather station project: Up and running once again

After a long time being silent here in LMR I finally got some time to post an update to my weather station project.

Weather station project: death, autopsy and resurrection

On April 2nd a bit after 11:33:22.546588 AM GMT+3 it happened. My weather station's (http://letsmakerobots.com/node/25773) remote unit died. I was having my morning coffee and noticed that weatherlogger hadn't received any updates for last 10 to 15 minutes or so. Last update was at previously mentioned timestamp.

I finally made it: Got my weather station up and running. Well, actually it's been running for about two weeks now but I've been too lazy to post it and I've been … Read more

Weather station project, Radio silence!

Here's a quick project update: I've been busy with studies, work and other stupid things and I haven't had much time to spend with really important stuff - my weather station project. Now that I finally got more time and spent couple of nights building I got radio silence! Oh ****!

Weather station project, The weather is out there

The weather is out there and so the weather station must be out there too. My weather station (or what will someday be a weather station) has now spent last two nights outside on my backyard. The idea is to test how it, and especially its lead acid battery, survives in cold weather.

Linux crashing when reading from serial port, problem and solution

The problem:

I have a weather station project going on and I'm planning to use my Linux box for data logging. I have ATMega168 writing data to its USART, FT232R doing USB serial (see my first SMD soldering here: http://letsmakerobots.com/node/23323) and Ubuntu Linux logging data. Here's a simple picture of the setup:


Weather station data logging test setup

Weather station project, it's getting windy

Believe it or not but this thing right here is a wind vane for my weather station:

"A wind vane"

Weather station project, the beginning

I've been thinking about making a weather station for a while. My goal is to have it running when I go for a two week trip at the end of the year so I can check how cold it is back here in Finland :-) To put it simply, the idea is this (the usual weather station stuff I think):

Just made my first SMD soldering

Today I made my first SMD soldering. This is where I started:

FT232RL and SSOP28 adapter

And this is what I ended up with:

Done!

Filtering Sharp IR sensor's noise on power rail

I have some problems with Sharp GP2D120 IR distance sensor on my next robot, Hammer. Sharp seems to cause noise on the power rail and the noise gets to LM386N-1 audio amplifier making really annoying "ringing" from speaker. Or at least this is what I suspect. Check the embedded video for a sample of that noise (or go here: http://www.youtube.com/watch?v=WIQ0qY6gFpQ). The video starts with Sharp disconnected and then I connect and disconnect it couple of times.