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16  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: I want to build an autonomous GPRS weather station on: January 18, 2011, 03:21:03 am
TFD, thanks for information , it is very good job.

However some things need to be chage smiley  (nop I didnt tested, but it is logical) .

1. Please send some array of random ID , my guess is that isnt so random .
2. How central device know which device send data ?
    - according your information it may be from :
      a) random ID
      b) bits 8,9,10,12,13, 14
3. How central device know which format is in use ?
    -may you send binary data log I would like to chechk real value

Regards,
Dubravko


17  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: I want to build an autonomous GPRS weather station on: December 30, 2010, 08:55:57 am
jumpjack: unfortuantly no smiley

In this particular case I prefer to talk about same parts not actual complet . Auriol rain gouge are different, probably diferent elctronic .
18  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: I want to build an autonomous GPRS weather station on: December 28, 2010, 02:03:48 am
Wind orientation on central device display dont show exat position at measuring time (maybe I need to configure something smiley ).

Algoritam of orientation presentation is very upredictable, it doesnt appear it is avrage position after few reeds. It show some adding behavior, but still upredictable.

Aerozg if I understand correctly you study aerospace engineering (FPZ) maybe you know what algoritham is used for wind orientation presentation ?
19  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: I want to build an autonomous GPRS weather station on: December 28, 2010, 01:51:16 am
Some small changes :

Rain gouge :
* only one reed switch, count off state (which is very unpractical, battery life)
* 1-wire ready (4N25)

Wind station:
* wind speed count Low state (GND) - 1-wire ready (4N25)
* wind orientation is reed short time before sending data and very probably used 4 reed switch and few diodes

I have few picture of inner PCB which will be posted later.

Finally, in my opinion it will be very hard to decode radio communication from central device, because electrically all 3 devices are different construction, and doesnt seam to be from same source.

Especially central device isnt good example how to create industrial PCB smiley (it look like amateurs work).
20  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: I want to build an autonomous GPRS weather station on: December 23, 2010, 03:07:28 am
Just capture signal isnt good enought without knowing what exactly system send.

"Wind" device basicly have 4 sensors :
1) Wind Speed
2) Wind orientation
3) Outside temperatura
4) Outside humidity

I did some research becouse I need that device to send data via 1-wire network, but finaly I decide to use both information (I like wide LED screen smiley )

What sensor is used :

1) Wind speed (reed switch)
    Half period on / half period off (not so usual but O.K.)
2) Wind orientation (not sure at the moment)
    From outside device come 7 wire, 2 of them are for Wind Speed , so
    we have 5 other , 16 orientation of wind , that mean 2^4, 1 wire in 4
    out maybe digital/or analog
3) Outside temperature (Normal thermo resistor)
    Analog value
4) Humidity sensor (Low lewel)
    Measuring resistance beatween two cooper field

Rain gouge
Standard dual reed switch system

If I am on your place I will use rein gouge for testing and alayzing signals.

When I finish 1-wire implementation I will send more info on forum.  
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