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Hi to all I built a digipeater with raspberry pi b+ and direwolf .? It work very fine, but I have a question . I have connected to raspberry pi a bmp085 sensor that acquire values like : Temperature, Pressure, altitude and so on , and I want to send these info through beacon when direwolf send it . Is it possible ? I read the documentations of direwolf to use the I2c bus data of raspberry pi but is not clear .
Please could you help me ?
regards Daniele ...#
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Good morning,
The subject interests me too. Did you get any answers?
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On the HamGate BBS project we use a "finger" command to collect a MetoGram?from a university in Norway. you might be able to fashion?this for your own purposes?
finger ^ philadelphia@...? ? ?The city you are interested in is preceded?by the hat (shift 6) symbol.
NI2O:NI2O-7 Area: g7ltt Current msg# 0.
BOFH,DX,GAMES,MUD,TIME,WX,JPL,?,A,B,C,CONV,D,E,F,H,I,IH,IP,J,K,L,M,N,NR,O,P,PI,R,S,T,U,V,W,X,Z >
wx
Trying...? The escape character is: CTRL-T
*** connected to 178.255.144.27:finger
? ? ? ? ?-= Meteogram for Philadelphia, Pennsylvania, United States =-
?'F ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Rain (in)
?74 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? =--=-----
?73 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?^^^ ? ? ? ? ---
?72
?71 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ===
?70 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ====== ? ? ? ? ? ? ? ? ?---
?69
?68
?67 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?===
?66====== ? ? ? ? ? ? ? ? ? ? ? ? ? ===
?65 ? ? ?==|==| ?| ?| ?| ?| ?| ?|^^^ ? ? |
? ? 22 23 18/09 02 03 04 05 06_07_08_09_10_11_12_13_14_15_16_17_18_19 Hour
? ? ?S ?S ?S ?S SE ?S ?S ?S ?S ?W NW NW ?N ?N NW NW NW NW NW NW NW ?W Wind dir.
? ? ?3 ?2 ?2 ?2 ?1 ?1 ?1 ?1 ?1 ?1 ?1 ?2 ?3 ?3 ?3 ?4 ?4 ?4 ?5 ?5 ?4 ?4 Wind(mph)
Legend left axis: ? - Sunny ? ^ Scattered ? = Clouded ? =V= Thunder ? # Fog
Legend right axis: ?| Rain ? ?! Sleet ? ? ? * Snow
[Peace, love, Linux.]
*** reconnected to NI2O:NI2O-7
On Sun, Sep 17, 2023 at 9:59?PM ROBERT < om.f6gdl@...> wrote: Good morning,
The subject interests me too. Did you get any answers?
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Good morning
Sorry, but that was not at all the meaning of my question and I
didn't understand anything from your answer. It's much simpler. I
would like to know if we can transmit the temperature of a room
from Direwolf to a Raspberry located on a relay, and how to do
it...
Thanks
Le 18/09/2023 ¨¤ 04:40, Mark Phillips a
¨¦crit?:
On
the HamGate BBS project we use a "finger" command to collect a
MetoGram?from a university in Norway. you might be able to
fashion?this for your own purposes?
finger ^ philadelphia@...?
? ?The city you are interested in is preceded?by the hat (shift
6) symbol.
|
Robert -
The answer is Yes - as far as I can tell.
There is a "Telemetry Toolkit" which provides means of gathering information from sensors and formatting a APRS packet message with the data.
This packet message will be sent out by Direwolf according to the configuration of the "SENDTO=" designation.
This works quite well under Linux (so on the Pi), but you need to work with other langueages: Pearl
There are examples in the APRS-Telemetry-Toolkit.pdf file included with Direwolf.
Look through the PDF, and maybe a search on this Groups.io message board for "Telemetry" or "Telemetry Toolkit".
Section 5 has specifics on using the I2C bus, including kernel support.
What area are you having issues with:
a) Reading the sensor(s) on the I2C bus?
b) Scaling the data and formatted the APRS packet?
c) Issues understanding the :PARM, :UNIT, :EQNS, and :BITS message(s)?
d) Decoding the information on the other end?
-------
Rob KB8RCO
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It's quite easy.? I do it like this, but this is NOT weather:
# compressed telemetry
PBEACON sendto=IG slot=9:59 every=30 symbol="igate" overlay=R lat=37^48.66N long=121^48.20W COMPRESS=1 commentcmd="telem-data91.pl `sudo python telem_mor_b91.py`"
?
I'm sending voltages and temperatures.
If you want to see my python code, just ask.? It's not the best, but it works including sequence number.
There is no reason to send telemetry parameters, the :PARM, :UNIT, :EQNS, and :BITS message(s), more than once a day.? I send them once a year, and it's all good.? After all, the data is for me, so I know what everything is...
?
Arnold, KQ6DI
?
?
On 09/18/2023 12:34 AM PDT ROBERT <om.f6gdl@...> wrote:
?
?
Good morning
Sorry, but that was not at all the meaning of my question and I didn't understand anything from your answer. It's much simpler. I would like to know if we can transmit the temperature of a room from Direwolf to a Raspberry located on a relay, and how to do it...
Thanks
?
Le 18/09/2023 ¨¤ 04:40, Mark Phillips a ¨¦crit?:
On the HamGate BBS project we use a "finger" command to collect a MetoGram?from a university in Norway. you might be able to fashion?this for your own purposes?
?
finger ^ philadelphia@...? ? ?The city you are interested in is preceded?by the hat (shift 6) symbol.
?
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On 9/17/23 19:40, Mark Phillips wrote:
On the HamGate BBS project we use a "finger"
command to collect a MetoGram?from a university in Norway. you
might be able to fashion?this for your own purposes?
finger ^ philadelphia@...?
? ?The city you are interested in is preceded?by the hat
(shift 6) symbol.
"finger help@..." indicates that the caret symbol prior to the
municipal name returns imperial units.
Many thanks for reminding me of the finger command. I used to use it
extensively 1989-1991 to check the online status of a graduate
astronomy friend at UNMLC, and then "talk" for realtime textual
communications. There were several days when he wasn't online, and
then I was informed that he didn't survive a private AC crash in TX.
Maybe that's why I put the finger command out of mind, but again,
thank you for reminding me of this very useful UNIX/Linux tool.
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I don't want to use an IG but just sent locally from a raspberry and a transmitter located at altitude, the temperature and humidity from a text file (data from a DHT22 probe and saved in a txt file) without this is visible on aprs.fi
Is it possible ? what is the format of telemetry frames? base 91 is it?
THANKS
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You might the information here useful.
APRS Telemetry Tool Kit
APRS Weather Station
If you don't want something on RF getting processed by an IGate station, put RFONLY or NOGATE at the end of the digipeater path.
73,
John WB2OSZ
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as I wrote, I don't have a weather station. I use a DHT22 probe.
temperature and humidity are recorded in a text file using a python program.
The question was how to use this text file in telemetry, I think that would be best.
I had already read the tool kit documentation but without understanding everything for my case.
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You could append the .txt file to a beacon, like this, using the head, tail or cut commands. PBEACON LAT=42^37.14N LONG=71^20.83W SYMBOL="weather station" COMMENTCMD="tail -1 filename.txt" An even better solution would be to format your .txt file like a wxnow.txt file. PBEACON LAT=42^37.14N LONG=71^20.83W SYMBOL="weather station" COMMENTCMD="tail -1 wxnow.txt"
(Found on page 115 of the Direwolf User Manual) Patrick (N3TSZ)
On Saturday, October 21, 2023 at 12:57:13 PM EDT, ROBERT <om.f6gdl@...> wrote:
as I wrote, I don't have a weather station. I use a DHT22 probe.
temperature and humidity are recorded in a text file using a python program.
The question was how to use this text file in telemetry, I think that would be best.
I had already read the tool kit documentation but without understanding everything for my case.
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I send the data in Telemetry.? Just as an example, see WA6DOP-4.
I also have one sending temperature, humidity and calculated dew point.
?
P use Python to build my telemetry strings for direwolf to send
Arnold, KQ6DI
On 10/21/2023 9:57 AM PDT ROBERT <om.f6gdl@...> wrote:
?
?
as I wrote, I don't have a weather station. I use a DHT22 probe.
temperature and humidity are recorded in a text file using a python program.
The question was how to use this text file in telemetry, I think that would be best.
I had already read the tool kit documentation but without understanding everything for my case.
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ok but that doesn't help me much... HI
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I have done this for many years with BMP sensors to send as a weather packet. It's pretty easy to do. I'm not sure what specifically you're looking for. I alternatively send as telemetry on some of my systems.
?
Can you elaborate your use case?
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For some reason my original message never made it to the list, only this message with where the weather data is.
I have code I wrote that uses Direwolf to send my weather data via radio and there is also code in there to send that same data directly to APRS-IS. ?The code is probably more than you need and it¡¯s not all that clean but is here if you want to check it out:?
The relevant routines are:
sendToRadio()
send_to_kiss_tnc()
connectToDireWolf()
The code that creates the weather packet:
transmit_wx_frame()
And then the code to send directly to APRS-IS:
sendPacket_thread_entry()
An example of the data is here: ?
Please contact me off list if you have questions about the code, assuming it's useful to you.
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Daniele
Mark Phillips
Patrick Connor