[time-nuts] Temperature (environmental) sensors
Gary E. Miller
gem at rellim.com
Thu Jan 5 15:40:59 EST 2017
Yo jimlux!
On Thu, 5 Jan 2017 12:21:44 -0800
jimlux <jimlux at earthlink.net> wrote:
> > http://www.pcsensor.com/usb-hygrometer/temperhum.html
>
> I'm kind of curious about their "UI".. hold CapsLock? how does this
> device manifest itself to the host computer? I saw a mention of HID,
> so it is emulating a keyboard?
It presents to the host OS as an HID/Keyboard,, but sends no data by
default. I run it on Linux and use the following FOSS Python program to
read it:
https://github.com/padelt/temper-python
Looking at the Python code, a simple binary packet is sent to the
device and it returns a binary packet with the data.
I can't speak to how it works on anything but Linux. I've never seen
the TEMPer interfere with anything.
RGDS Veritas liberabit vos
GARY Quid est veritas?
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
gem at rellim.com Tel:+1 541 382 8588
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