02-02-2024
Based on an article i the Danish OZ magazine december 2023 written by OZ2OE I wanted to build the described radiosonde receiver.

This is the Lora 433MHz board I bought at Aliexpress:
LILYGO® Disaster-Radio LoRa V2.1_1.6.1 ESP32 433/868/915Mhz WIFI Wireless Bluetooth Module 0.96 Inch OLED SD Development Board

The firmware has to be changed, so see it here: MySondy GO v2

Here some pictures of the display after update of firmware:

The ttgo can communicate with an android phone, install the app “MySondy GO”

Here my version of the MySondyGo. With my ovn case made with TincerCad, Cura and a Artillery Genius Pro 3D printer.

The blue line is the recorded track, the red is the distance to the sonde. Shown are the last measures received.
The first with external antenna about 8 m high (height 884 m).
The second one with GP antenna (height 3305 m).