Yes, I wish I could get Pascal to respond. I'd like to use one to build
a board for talking to a wind vane and anenometer as my AAG
weatherstation has gone the way of all flesh.
Nigel
On 19/10/16 18:26, Paul Everett 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
> <mailto: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
>>> <mailto:pwhb...@gmail.com>> wrote:
>>>
>>> Thanks. I'll work on it.
>>>
>>> On Tue, Oct 18, 2016 at 3:59 PM, Jan Kandziora <j...@gmx.de
>>> <mailto: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
>>> <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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