77 lines
3.0 KiB
Markdown
77 lines
3.0 KiB
Markdown
rdzTTGOsonde
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============
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This a decoder for radiosonde RS41, RS92, DFM06/09/17, M10/M20, and MP3H
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based on a TTGO LoRa ESP32 board.
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It supports OLED displays (SSD1306, SH1106) and TFT displays (ILI9225).
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It also supports feeding data to external applications using WiFi (NOT bluetooth):
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- Arduino app by dl9rdz (see https://github.com/dl9rdz/rdzwx-go for apk download)
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- AXUDP (for aprsmap application by oe5dxl, among others)
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- KISS TNC (aprs format, mainly useful for APRSdroid app)
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- MQTT
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- SondeHub tracker (experimental)
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Please consult the Wiki at https://github.com/dl9rdz/rdz_ttgo_sonde/wiki/Supported-boards
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for details on supported boardsi, and additional setup instructions.
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## Button commands
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You can use the button on the board (not the reset button, the second one) to
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issue some commands. The software distinguishes between several inputs:
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- SHORT Short button press (<1.5 seconds)
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- DOUBLE Short button press, followed by another button press within 0.5 seconds
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- MID Medium-length button press (2-4 seconds)
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- LONG Long button press (>5 seconds)
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You can optionally use a second button, which you have to add manually to your board.
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See https://github.com/dl9rdz/rdz_ttgo_sonde/wiki/Hardware-configuration for details.
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## Wireless configuration
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On startup, as well as after a LONG button press, the WiFI configuration will
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be started. The board will scan available WiFi networks, if the scan results
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contains a WiFi network configured with ID and Password in networks.txt, it
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will connect to that network in station mode. If no known network is found, or
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the connection does not suceed after 5 seconds, it instead starts in access point
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mode. In both cases, the ESP32's IP address will be shown in tiny letters in the
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bottom line. Then the board will switch to scanning mode.
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## Scanning mode
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In the scanning mode, the board will iterate over all channels configured in
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channels.txt, trying to decode a radio sonde on each channel for about 1 second.
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If a valid signal is found, the board switches to receiving mode on that channel.
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A SHORT buttong press will also switch to receiving mode.
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## Receiving mode
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In receiving mode, a single frequency will be decoded, and sonde info (ID, GPS
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coordinates, RSSI) will be displayed. The bar above the IP address indicates,
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for the last 18 frames, if reception was successfull (|) or failed (.), or had
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some errors (E), e.g., CRC check failed.
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A DOUBLE press will switch to scanning mode.
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A SHORT press will switch to the next channel in channels.txt
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A SHORT press on the second button will switch to a different display screen.
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## Spectrum mode
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A medium press will active scan the whole band (400..406 MHz) and display a
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spectrum diagram (each line == 50 kHz)
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For TTGO boards without configurable button there are some new parameter in config.txt:
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- spectrum=10 // 0=off / 1-99 number of seconds to show spectrum after restart
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- timer=1 // 0=off / 1= show spectrum countdown timer in spectrum display
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- marker=1 // 0=off / 1= show channel edge freq in spectrum display
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## Setup
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see Setup.md
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