Comments on: Using Temper1F USB Temperature Probe on Raspberry Pi

By: Tuxinvader

Tuxinvader — Sat, 28 Jan 2017 15:47:24 +0000

In reply to Jamie.

I had the same problem. Certain Temper devices hang if you only make one request to them? I’ve just submitted a pull request which should fix the issue, but you can check it out for youself here:

https://github.com/TuxInvader/usb-thermometer

By: name

name — Wed, 25 Jan 2017 09:27:12 +0000

Where download script for python\apache?

By: mm7

mm7 — Sat, 26 Sep 2015 18:26:16 +0000

Hi.
I have just plugged two Temper1F sensors into RPi running raspbian.

Seems that executing./pcsensor returns only reading from one sensor.

Idea idea how to get both sensors output?

Thanks.
mm7

By: Jamie

Jamie — Thu, 24 Sep 2015 22:42:39 +0000

Hi. Thanks for this tutorial. I have 1 question:

When I get to Steps 6 and 7, unplug and replug, and run ./pcsensor, I do get the correct output on the first try. However, if I run ./pcsensor again, I get an error: “Fatal error> USB read failed”

If I unplug/replug again, it works, but again, only the first time.

Is this the expected behavior? If so, is there a workaround?

Thanks!

By: Sébastien

Sébastien — Fri, 03 Jul 2015 16:05:01 +0000

Thank you !

By: Lee

Lee — Wed, 17 Jun 2015 17:26:54 +0000

In reply to nik. Interesting Nik, thanks for that. Looks pricey for larger projects but good to know it's free for the fun stuff :)

By: nik

nik — Tue, 16 Jun 2015 17:16:21 +0000

If you don’t want to go through the trouble of setting up the db and highcharts you can use Librato (shameless plug). For tiny data amounts like this you can use it for free. I run this ruby script on my raspberry pi to send temperature information to Librato every minute:

require 'librato/metrics'


Librato::Metrics.authenticate 'email', 'api_key'

loop do begin sensor_output = `sudo ./pcsensor` temperature = /(? {:source => 'raspberry', :value => temperature} rescue StandardError=>e puts "Error: #{e}" else puts temperature ensure sleep 60 end end

By: Lee

Lee — Tue, 21 Apr 2015 13:23:14 +0000

In reply to pHun. Maaaaaaybe ;) If I find a free day, then why not. The code is ugly as sin, but it works!

By: pHun

pHun — Tue, 21 Apr 2015 12:26:15 +0000

In reply to Lee. maybe you can spend a second blog post to share that to. I mean your script getting the data and putting it into the database, the database tables and your php script with highcharts to read get it out of the database... that would be great!!

By: Lee

Lee — Mon, 20 Apr 2015 18:13:09 +0000

In reply to pHun. I put temperature data collected from various sources into a MySQL database. I then just pull it out and run it through HighCharts which does most of the hard work on the display side. Awesome (free!) application for building just about any chart you can think of.