I'm surprised! Astonished!! Gobsmacked!!! I'm a programmer, not a hardware engineer. I built a crystal radio that worked when I was 14, but I haven't advanced much since then. I can use a soldering iron, but I'm not proficient.
Yesterday, the AirPi arrived. Today, I built it. It comes as a kit of parts, plus a PCB, and you have to solder the parts into the PCB. There's lots of scope for getting it wrong; chips to solder in the wrong way round. I did manage to solder one component into the wrong place, and unsoldering it was the dickens, but eventually I had something that was as close as I was ever going to get.
So then I fired up a Raspberry Pi, connected the AirPi, and went through the very long process of installing the software for it. And then I tried to run it. At first, I thought it wasn't working, no great surprise, because I was getting a stream of messages "Error accessing 0x20: Check your I2C address". But then I noticed that there was more; occasionally it was saying:
Temp-DHT: 26.6 C
Humidity: 21.6 %
Air Quality: 0.00
Light Level: 32.85 Lux
UV Level: 0.02 UVI
Temp-BMP: 26.9 C
Pressure: 102357.0 Pa
NO2: 0.193 ppm
NO2 ohms: 69975.0 ohms
CO: 0.000 ppm
CO ohms: 691589.4 ohms
And that looks hopeful.
So I connected it up to Xively, and you can see it here.
What you're seeing there, is the conditions in my garage, where it's currently running. It'll stay there for a while - tomorrow I'm going out on a 12 mile trek, and the day after I'll be waddling like a penguin. But when I come back from Eurodisney, I'll A) install it outside, and B) make the display a lot easier to understand. For example, the pressure is currently in pascals, but this is usually given in millibars (1 millibar = 100 pascals). And UV Level needs some explaining.
Update ... I've done the display
WOW!! Whoa!! Well done you!! I'll have to get one now, as I mentioned it to you earlier! Are you going to register/display it at Airpi too?
ReplyDeleteargh! I have just gone to order one and there is a waiting list!!
ReplyDeleteSame here normally I hear about these pi things quite early but missed this one but will be getting one.
ReplyDeleteI got one what did you do for housing in the end and if outside power?
ReplyDelete