decoder for radiosonde RS41, RS92, DFM06/09/17, M10/M20, and MP3H based on a TTGO LoRa ESP32 board.

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README.md

rdz_ttgo_sonde

See https://dl9rdz.github.io/rdz_ttgo_sonde/download.html for automated builds.

For downloading these to the ESP32 board, use something like

esptool --chip esp32 --port /dev/cu.SLAB_USBtoUART --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0x1000 <filename.bin>

Most important part is the start offset 0x1000.

The binary image contains everything including the flash file system, so all configurations options will be overwritten. If you want to update only the software, you can flash update.ino.bin at offset 0x10000 (or use OTA update via http://rdzsonde.local/update.html).

If you prefer a GUI instead of a command line flash tool, you can get the Flash Download Tools from https://www.espressif.com/en/support/download/other-tools

Here are the correct settings for flashing one of the images: