That is the cct I have been using :-(
Sent from my iPhone
On 1 May 2016, at 14:32, Jan Kandziora <j...@gmx.de <mailto:j...@gmx.de> >
wrote:
Am 01.05.2016 um 14:58 schrieb Colin Law:
> On 1 May 2016 at 12:35, John Bass <j...@johnbass.co.uk
> <mailto:j...@johnbass.co.uk> > wrote:
>> Hello Colin,
>>
>> You got it, with a 1k resistor(which Jan recommended rather than a 4.7k)
>> from VDD to DQ as the pull up..
>
> Not from VDD, from 3v to DQ.
>
Ah, Colin, you are a genius. Yes, that would explain it, no power during
conversion. John, please use this circuit:
Raspi DS18B20
----- -------
_______
3.3V -----. |G V|
| |N D D| Front to enemy.
\ |D Q D|
/ 1k –––––--
\ | | |
| | | |
GPIO4 -----+------\\-----)-´ |
| |
GND ------------\\-----+---´
Kind regards
Jan
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