StratoSat-TK1 jpg creating on LINUX
I could establish a method for converting the signal data from StratoSat-TK1
into JPG image. @EU1SAT
1. Generate the new 'stratosat' folder.
2. Extract 'geoscan-tools-main.zip' in this folder, and rename the
generated 'geoscan-tools-main' folder to 'stratosat-tools-main' folder.
3. Open 'process_simple.py' by the text editer', and change 3 lines
in this py file. (red and pink)
4. Save this rewriten py file with a new name "stratosat_simple.py".
5. This newly modified "stratosat_simple.py" is the actual situation
when generating to a jpg image.
In the question and answer at "Libre Space Community",
I understood that the strage method was called "little endian".
For example, if you want to store a 4-byte number (0x)01020304 in memory,
separate it as 01 02 03 04.
* "little endian": numerical values are stored in the lower addresses
of memory in order, such as 04 03 02 01.
* "big endian": numerical values are stored in the lower addresses of
memory in order, such as 01 02 03 04.
In other words, "little endian" is the storage method in which the lower
digits of a number are lower in memory (Windows, Linux, etc), and
"big endian" is the storage method in which the upper digits of a number
are lower in memory (Mac, etc).
Therefore, when it store the number '02003E20' in memory, it becomes
'203E0002' by "little endian".
$ cd ~/stratosat/stratosat-tools-main
$ grep '^2023-08-17 08' 31116str.csv > 2023-08-17_08.csv
$ python3 stratosat_simple.py 2023-08-17_08.csv
> Writing image to: 2023-08-17_08.jpg
$ cd ~/stratosat/stratosat-tools-main
$ grep '^2023-08-25 17' 31116str.csv > 2023-08-25_17.csv
$ python3 stratosat_simple.py 2023-08-25_17.csv
> Writing image to: 2023-08-25_17.jpg
$ cd ~/stratosat/stratosat-tools-main
$ grep '^2024-01-21 20' 40124str.csv > 2024-01-21_20.csv
$ cut -c 1-148 2024-01-21_20.csv > 2024-01-21_20_modified.csv
$ python3 stratosat_simple.py 2024-01-21_20_modified.csv
> Writing image to: 2024-01-21_20_modified.jpg
StratoSat-TK1 real-time Decoder #1 (5 Mar 2024)
"Real-time image decoder" of StratoSat-TK1 is published.
I confirmed that it literally draws in real time. The completed image will be
saved in the AVI folder. This is the real-time decoder that runs on Windows.
Download the zip file from the above github site, unzip it, and follow the steps below.
1. Run "[GUI] StratoSat TK-1 Decoder.exe" in "Dist_Windows32-64" folder
2. Click on "Start soundmodem"
3. Set your soundmodem to your input audio device from which
the signal will be captured.
Soundmodem -> Settings -> Devices -> AGWPE Server Port -> 8003
4. Click on "Start decoder" (If everything is fine, you will
receive a message about successful connection.)
5. Click on "Read Stream" -> To display the photo in real time.
The photo will also be in the folder with the decoder
[Note] Check the following in advance.
* Install "Java 1.8.0", i.e, jre-8u391-windows-x64.exe
* Make the Decoder folder readable and readable, i.e,
Right click on folder -> Properties -> Security -> Users -> Edit -> Full Control -> All Check
* When you first start Soundmodem, it is minimized, so uncheck this setting, i.e,
in Soundmodem in Dist_Windows32-64 folder,
Settings -> Devices -> (non-check) Minimized windows on startup
StratoSat-TK1 real-time Decoder #2 (6 Mar 2024)
Save in C:\Program Files\ojos\ojos3_4_3\AVI
Change it from AVI to MP4 via Windows_Movie_Maker
If it doesn't play, click the popout in the upper right corner to play it.
(9 Apr 2024)
