Thanks for the very useful answers. I will order the Sheepwalk board but in
the meantime will try the "cheap&dirty solution". To do so I need help. Let
me put it in perspective. I'm a 79 year old former mainframe computer
programmer but know next to zero electronics.
" ... connecting it (and a 1k pullup to 3.3V) to GPIO4 is sufficient."
The waterproof DS18B20 has three leads:
+5V (red)
Ground (yellow)
Data (blue)
Do I wire:
GPIO pin 1 (3.3V) to red
GPIO pin 6 (Gnd) to yellow
GPIO pin 7 (GPIO4) to blue
??
Thanks. You will be rewarded for helping an old geezer.
Peter
Stuart Island, B.C.
On Mon, Jun 13, 2016 at 2:43 AM, Jan Kandziora <j...@gmx.de> wrote:
> Am 13.06.2016 um 04:11 schrieb Peter Hollenbeck:
> > This article:
> > https://www.packtpub.com/books/content/raspberry-pi-and-1-wire
> > suggests using a 1-Wire DS2482-100 bridge from AB Electronics to connect
> to
> > a DS18B20.
> >
> This board is an overly complex design. The DS2483 onewire host chip
> will work on a 3.3V I²C bus and gives you a 5V onewire at the same time.
> External circuit: two resistors.
>
> If you only want to connect a single DS18B20, the cheap&dirty solution
> of connecting it (and a 1k pullup to 3.3V) to GPIO4 is sufficient.
>
> Kind regards
>
> Jan
>
>
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planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e
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