On 19 September 2016 at 13:23, Jan Kandziora wrote:
> Am 19.09.2016 um 10:42 schrieb Colin Law:
>> I have been trying
>> to get to grips with device tree and (on pi with raspbian jessie) in
>> /boot/overlays/README it says
>>
>> "Device Tree makes it possible
>> to support many
Am 05.09.2016 um 09:00 schrieb Colin Law:
>
> When estimating device temperature for devices mounted on a PCB the
> convention is to use a linear model (see [1] for example). This
> applies to devices such as transistors mounted above the PCB on leads
> as well as to surface mount devices. Quite
On 4 September 2016 at 19:59, Jan Kandziora wrote:
> Am 04.09.2016 um 19:08 schrieb Colin Law:
>>
>> I have it to 3.3V ok. So 4.7k is ok for 3 wire mode but for parasitic
>> it should be 1.5k
>>
> Yes.
>
>>
>> To summarize then, for parasitic mode I should not need an external
>>
Am 04.09.2016 um 19:08 schrieb Colin Law:
>
> I have it to 3.3V ok. So 4.7k is ok for 3 wire mode but for parasitic
> it should be 1.5k
>
Yes.
>
> To summarize then, for parasitic mode I should not need an external
> strong pullup and should be able to use just a 1.5k pullup and to
> specify
>
On 3 September 2016 at 13:04, Jan Kandziora wrote:
> Am 03.09.2016 um 10:36 schrieb Colin Law:
> ...
> 2. You have to put
>
> dtoverlay=w1-gpio,gpiopin=4
>
> or
>
> dtoverlay=w1-gpio-pullup,gpiopin=4,pullup=5
>
> into your Raspberry Pi boot partition config.txt. And of course, the
>
On 3 September 2016 at 14:00, Colin Law wrote:
> On 3 September 2016 at 13:45, Jan Kandziora wrote:
>> Am 03.09.2016 um 14:28 schrieb Colin Law:
>>>
>>> Many thanks
>>>
>> I missed one thing: you have to load the w1-gpio kernel module!
>
> Which I do, I think, by
Am 03.09.2016 um 14:28 schrieb Colin Law:
>
> Many thanks
>
I missed one thing: you have to load the w1-gpio kernel module!
Kind regards
Jan
--
___
Owfs-developers
On 3 September 2016 at 13:04, Jan Kandziora wrote:
> Am 03.09.2016 um 10:36 schrieb Colin Law:
>> I want to use owserver on a raspberry pi (zero) running Raspbian
>> (Jessie) using the method of direct connection to GPIO pins with a
>> pullup resistor. Unfortunately I have found a
Am 03.09.2016 um 10:36 schrieb Colin Law:
> I want to use owserver on a raspberry pi (zero) running Raspbian
> (Jessie) using the method of direct connection to GPIO pins with a
> pullup resistor. Unfortunately I have found a fair amount of
> conflicting and confusing information on this around