wettersonde.net




rdzTTGOSonde Installation


Current versions

Devel version:

devel20240521-B17

Master version:

master_v0.9.5-B17


Overview

  • Flashing the software onto the TTGO
  • Configuring rdzTTGOSonde for Wi-Fi
  • Configuring rdzTTGOSonde for wettersonde.net
  • rdzTTGOSonde frequency import from sondehub.org (optional)
  • Advanced rdzTTGOSonde frequency hopping settings (optional)
  • rdzTTGOSonde frequency import from wettersonde.net (optional)
  • Configuring rdzTTGOSonde as a chaser with a different symbol (optional)


    • Flashing the software onto the TTGO

    Download the rdzTTGOSonde software (Download). You can find it on the DL9RDZ download page.
    In the Development repository section, download the latest devel version. It is provided as a *.bin file.

    You also need Windows software to flash the rdzTTGOSonde firmware. You can download it directly from this server: (Download) Start flashing the firmware.

    Open the flash_download_tool application. A small window opens where you can select the board or chipset. Select ESP32 here.

    Flash download tool board

    Click OK. A new window will open. Here you must load the firmware, enter an address, and select the COM port. Then flash the software by clicking Start.

    Flash download tool

    After that, the software should be installed on your TTGO. Restart the TTGO.

    Configuring rdzTTGOSonde for Wi-Fi


    The TTGO now provides an access point that you need to connect to. Search your Wi-Fi networks for the access point RDZSonde and connect to it. While connected, you will temporarily no longer be connected to your home network. The username and password are both RDZsonde. Once connected, look at the display. You will find an IP address in the lower right corner. Open it in your browser: http://192.168.4.1
    A web page opens where you can configure the software.

    Select the Wifi tab in the menu. Add your home Wi-Fi network to the list and make sure you enter the details exactly. Otherwise, the TTGO will not be able to connect to your home network.

    rdzTTGOSonde Wlan

    Click the Save changes button at the bottom to save the settings.

    Select the Config tab in the menu.

    rdzTTGOSonde Config

    Here you will find several submenus where different settings can be changed. First, configure the Wi-Fi mode.

    Click General configuration.

  • Set Wifi mode to 3. The TTGO will then connect to your home network.

    • Then reboot the TTGO so it can connect to your home network.


    Configuring rdzTTGOSonde for wettersonde.net


    The TTGO should now be connected to your home network. The IP address assigned by your router is shown in the lower right corner of the display.
    Open this IP address in your browser: http://ip-address. The configuration web page opens again. Click the Config tab.

    rdzTTGOSonde Config

    Click General configuration.

  • Receiver fixed latitude: your northern latitude in decimal format, for example 52.1234
  • Receiver fixed longitude: your eastern longitude in decimal format, for example 8.1234

    • Click KISS TNC/AXUDP/AXTCP data feed configuration.

  • Call: enter your callsign, for example DO2JMG  // It should not be longer than 8 characters
  • Passcode: generate a passcode for your callsign using the following link. Important: generate it without SSID (link)
  • APRS TCP active must be set to 1 to enable APRS.
  • APRS TCP host: the correct server is wettersonde.net.
  • APRS TCP port: use port 14580.
  • APRS location reporting: set this to 1. A position beacon will be sent using the coordinates you saved earlier.

    • Restart your TTGO with these settings. A blue dot with your information should now appear at your location on wettersonde.net.


    rdzTTGOSonde frequency import from sondehub.org (optional)


    The software can import current frequencies from sondehub.org. This keeps your frequency list up to date and helps prevent missing any radiosonde. This setting is also configured under the Config tab. Near the bottom of the submenus you will find the section SondeHub frequency import.

  • SondeHub frequency import active: set this to 1 to enable it.
  • Import frequency: set this to 5. A request will be made every five minutes.
  • Import maximum distance: a value of 300 is recommended. More than 300 km is usually not useful.
  • Import maximum age: set this to 0.0833. After 5 minutes of inactivity, the radiosonde will be removed.


    • Advanced rdzTTGOSonde frequency hopping settings (optional)


    Edit the screens1.txt file through the browser using the following link: http://[IP]/edit.html?file=screens1.txt. Replace the IP address with the IP address of your TTGO. A window opens where you can edit the file. Search for the line @Legacy.

    rdzTTGOSonde Legacy

    Replace the following lines so that they look like this example.

    timer=-1,10,1
    key1action=+,0,F,W
    key2action=>,#,#,#
    timeaction=#,+,+

     Then click Save to save the changes.

    The important setting is timer. The value -1,10,1 means that it stays on the frequency for 10 seconds when data is present, and moves to the next frequency after 1 second. Only these two lines need to be changed. In this mode, frequency hopping will only be active on the Legacy screen.


    rdzTTGOSonde frequency import from wettersonde.net (optional)

    Please note in advance: as soon as the import is obtained from wettersonde.net, upload to sondehub.org will be disconnected. Proceed as follows. Click Config in the menu and then find the submenu Sondehub settings. Change the following settings there.

  • SondeHub reporting (0=disabled, 1=active) - Set this value to 0 to stop uploading to sondehub.org.
  • SondeHub location reporting (0=off, 1=fixed, 2=chase/GPS, 3=auto) - Set this value to 0 as well.
  • SondeHub host (DO NOT CHANGE) - Change the domain from api.v2.sondehub.org to api.wettersonde.net

    The other fields are not relevant for the import and can remain unchanged.


    Configuring rdzTTGOSonde as a chaser with a different symbol (optional)

    To make yourself easier to recognize on the map when chasing a radiosonde, make the following configuration changes.
    A stationary receiver is shown as a blue dot, while a chaser is shown as a red dot.

    Under Config, click KISS TNC/AXUDP/AXTCP data feed configuration.

    Change the following settings there.

  • APRS location reporting - Set this value to 2 to use the tracker's GPS for the position.
  • APRS tracker symbol - Set this value to /`/(

    • The symbol must consist of four characters. The first two characters are the symbol for the stationary receiver: first the overlay, then the symbol. Characters three and four are the mobile symbol, again first the overlay and then the symbol.


    The software is very extensive, and this guide does not cover all settings and functions. It is therefore worth taking a look at the developer's wiki: rdzTTGOSonde Wiki. This guide only covers the basic settings required to feed data to wettersonde.net. Questions are also welcome in the Telegram group.

    End


    This guide was created in cooperation with the Telegram group for this website.
    Many thanks also to DL9RDZ (Hansi) for adapting the software to wettersonde.net.

    © wettersonde.net - Jean-Michael (DO2JMG) - 2021