"built four of them onto boards" ...
Breadboards?
Do you have a schematic for connecting to a 1wire network?
I can program but am an electronics moron.
Thanks,
Peter
On Wed, Oct 19, 2016 at 10:26 AM, Paul Everett <rep...@repton.org> wrote:
> I have a load of these and have built four of them onto boards which are
> counting the flashes of the LED on the four electricity meters I have here
> (import, export and two solar PV systems). They work very well.
>
> Paul Everett
>
> On 19 Oct 2016, at 18:16, Nigel Titley <ni...@homechip.com> wrote:
>
> There's also this
>
> http://www.brain4home.eu/node/4
>
> which would seem to be perfect for the job, but I've been completely
> unable to get any response from Pascal either to requests for pin-out
> information or to requests to buy it (Pascal, if you are listening to this
> list, please get back to me)
>
> Nigel
>
> On 19/10/16 02:59, Andrew Errington wrote:
>
> The DS2423 is discontinued and hard to find these days.
>
> I built this, which is a DS2423 implemented on an ATtiny:
> https://www.tm3d.de/index.php/1-wire-device-mit-avr
>
> It works, but the address is hard-coded. There is a utility to generate
> new addresses if you will have more than one in your network.
>
> I also changed the fuse settings to lower the brownout detection voltage
> as I was running it at 3.3V, not 5V.
>
> I used it on a Raspberry Pi 3. It didn't work with the native w1_ds2423
> module, but it did work with OWFS using the w1 driver.
>
> HTH,
>
> Andrew
>
> On 19 October 2016 at 10:36, Peter Hollenbeck <pwhb...@gmail.com> wrote:
>
>> Thanks. I'll work on it.
>>
>> On Tue, Oct 18, 2016 at 3:59 PM, Jan Kandziora <j...@gmx.de> wrote:
>>
>>> Am 19.10.2016 um 00:33 schrieb Peter Hollenbeck:
>>> > I would like to count revolutions of an anemometer, perhaps this one:
>>> > http://www.inspeed.com/anemometers/vortex_wind_sensor.asp
>>> >
>>> > I would appreciate suggestion on how to implement a counter.
>>> >
>>> You could use the DS2423, or some of the homebrewn DS2423 replacements
>>> out there. As it has a reed switch, you need some debouncing on the
>>> input:
>>>
>>> ^ +5V
>>> |
>>> 10kΩ
>>> |
>>> .-----+-------> DS2423 input
>>> | |
>>> o |
>>> \ 100nF
>>> \ |
>>> o |
>>> | |
>>> === === GND
>>>
>>> These values give you ~1ms, which should be enough to debounce the
>>> switch and which is fast enough for 500Hz (== 1250mph for this
>>> anemometer.)
>>>
>>> Kind regards
>>>
>>> Jan
>>>
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