[SGVHAK] Raspberry PI and 1-wire sensors

[Claude Felizardo]

Got this from a personal weather station mailing list where the tread was
about using Raspberry Pi's and 1-wire sensors.

As for problems with SD cards, I had one that needed to be reformatted
after losing power so hearing about other people having similar problems
and the idea of moving the OS to a USB drive is interesting -- to bad the
Pi doesn't have enough USB ports.

Claude


---------- Forwarded message ----------
Date: Fri, Jul 19, 2013 at 11:10 AM
Subject: Re: [Weather] Weather Digest, Vol 104, Issue 2
To: weather at users.buoy.com


Even better for the Raspberry and DB18B20's is a data site I ran into
yesterday. I haven't tried it yet because I am working on a bench supply.
But this looks much simpler. Almost seems too simple.

http://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/temperature/

Another issue is that SD cards are not particularly sturdy, and don't last
long especially when written to frequently. The following allows you to
move the entire OS over to a USB drive or flashdrive, both of which are
much more sturdy. You still need an SD card in your raspberry, but it is
only read, not written to. You can even lock the SD card to prevent
writing. I did this with a 32GB Corsair voyager 3.0 yesterday, and it has
been running fine as well as faster -- USB flash drive writes and reads go
about twice as fast as an SD card. When I get to it, I will try doing the
same with a small external drive.

http://raspi.tv/2012/mount-a-usb-flash-drive-on-raspberry-pi

Michael
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