Check your connector. Those Rj12s can get squidgy with enough fussing
about.
On Tue, Mar 1, 2016 at 3:14 PM, Peter Hollenbeck <pwhb...@gmail.com> wrote:
> I must have it wired wrong.
> Really odd that yesterday evening it worked and I got valid ocean
> temperature values.
>
> Back to checking wiring.
>
> Thanks,
> Peter
>
>
> On Tue, Mar 1, 2016 at 1:59 PM, Eric Vickery <eric...@hobby-boards.com>
> wrote:
>
>> Definitely sounds like the 1-Wire bus is getting shorted out.
>>
>> On Mar 1, 2016, at 3:56 PM, Peter Hollenbeck <pwhb...@gmail.com> wrote:
>>
>> I must have something else wrong. When I connect the DS18B20 without a
>> resistor the MS-TV disappears.
>>
>> Odd that it worked last night - with a 5K resistor.
>> I do not know electronics.
>>
>> Thanks,
>> Peter
>>
>> On Tue, Mar 1, 2016 at 1:48 PM, Johan Ström <jo...@stromnet.se> wrote:
>>
>>>
>>>
>>> On 01/03/16 22:38, Peter Hollenbeck wrote:
>>> > Raspberry Pi Ethernet to LinkUSB
>>> > Ethernet from LinkUSB to MS-TV
>>> > Ethernet from MS-TV to DS18B20
>>> >
>>> > Ethernet connections to DS18B20:
>>> > DS18B20 +5V red connected to RJ45 pin 2
>>> > DS18B20 ground blue to RJ45 pin 6
>>> > DS18B20 data yellow to RJ45 pin 4
>>> That looks weird, according to my LinkUSB PDF pin 6 is Auxiliary. Try
>>> pin 1,3 or 5 which is GND.
>>>
>>> There should be no need for a pull-up resistor on a LinkUSB, ever. It
>>> would probably just confuse the active pull-up which the LinkUSB is
>>> equipped with.
>>> The doc you referred to (https://www.adafruit.com/products/381) seems to
>>> assume a direct connection between a Rasberry Pi GPIO pin, and the
>>> device. That makes a non-optimal, but working, 1-wire master. You have a
>>> proper one (the LinkUSB).
>>>
>>>
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