750 wiersze
37 KiB
Markdown
750 wiersze
37 KiB
Markdown
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<div class="mainsection"><br>
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<div class="article">
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<h1><font style="font-size: 20pt" size="5">Vaisala RS-41 SGP
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Modification.</font> </h1>
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<p class="siteSub">
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</p>
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<div class="articleRight"> <img
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src="img/rs1.png" alt="rs41" width="79" height="270">
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</div>
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<br>
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<p style="user-select: auto !important; margin: 0px 0px 20px;
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padding: 0px; border: 0px; outline: 0px; font-size: 15px;
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vertical-align: baseline; background: 0px 0px rgb(255, 255,
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255); color: rgb(68, 68, 68); font-family: "Helvetica
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Neue", sans-serif; font-style: normal;
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font-variant-ligatures: normal; font-variant-caps: normal;
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font-weight: 300; letter-spacing: normal; orphans: 2;
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text-align: start; text-indent: 0px; text-transform: none;
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white-space: normal; widows: 2; word-spacing: 0px;
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-webkit-text-stroke-width: 0px; text-decoration-style:
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initial; text-decoration-color: initial;">Radiosondes are
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light weight sensor packages that are attached to weather
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balloons. <br>
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They transmit live RF weather telemetry down to earth as
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they rise. <br>
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One related hobby that a few people enjoy is radiosonde
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chasing, which is tracking and collecting radiosondes once
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they have fallen back to the earth. <br>
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Some people collect them as trophies, and others like to
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repurpose them.</p>
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<p style="user-select: auto !important; margin: 0px 0px 20px;
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padding: 0px; border: 0px; outline: 0px; font-size: 15px;
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vertical-align: baseline; background: 0px 0px rgb(255, 255,
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255); color: rgb(68, 68, 68); font-family: "Helvetica
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Neue", sans-serif; font-style: normal;
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font-variant-ligatures: normal; font-variant-caps: normal;
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font-weight: 300; letter-spacing: normal; orphans: 2;
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text-align: start; text-indent: 0px; text-transform: none;
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white-space: normal; widows: 2; word-spacing: 0px;
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-webkit-text-stroke-width: 0px; text-decoration-style:
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initial; text-decoration-color: initial;">Another way to
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repurpose radiosondes is to reprogram the commonly used
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Vaisala RS-41 radiosondes into being able to transmit radio
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APRS, 4FSK, RTTY or CW mode signals in the ISM or HAM bands.
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<br>
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The initial modified firmware was first performed by SQ5RWU,
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and then OM3BC who managed to create firmware able to
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configure settings thru the serial connection off the
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radiosonde.<br>
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Darkside did also modified firmware and added a very
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promising demodulation mode 4FSK, which not only decrease
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the package size but also has better coverage. <br>
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This firmware could be useful for anybody requiring a cheap
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transmitter for their own high altitude balloon experiments.<br>
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</p>
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<p style="user-select: auto !important; margin: 0px 0px 20px;
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padding: 0px; border: 0px; outline: 0px; font-size: 15px;
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vertical-align: baseline; background: 0px 0px rgb(255, 255,
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255); color: rgb(68, 68, 68); font-family: "Helvetica
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Neue", sans-serif; font-style: normal;
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font-variant-ligatures: normal; font-variant-caps: normal;
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font-weight: 300; letter-spacing: normal; orphans: 2;
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text-align: start; text-indent: 0px; text-transform: none;
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white-space: normal; widows: 2; word-spacing: 0px;
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-webkit-text-stroke-width: 0px; text-decoration-style:
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initial; text-decoration-color: initial;">Also it is
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possible to enter the service menu of the Vaisala RS-41
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Radiosonde to learn more about its operation.<br>
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</p>
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<br>
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<div class="contentsPanel">
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<div class="contentsHeader">Contents:</div>
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<br>
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<ul>
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<li><span>1.1 <a href="#Hardware_Details_">Hardware
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Details</a></span> </li>
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<li><span>1.2 <a href="#Needed_Stuff_">Needed
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stuff</a> </span> </li>
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<li><span>1.3 <a href="#RS-41_Connector_">RS-41
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Connector</a><br>
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</span></li>
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<li><span>1.4 </span><a
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href="#ST-Link_STM32_Connection_">ST-LINK STM32
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Connection</a></li>
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<li>1.5 <a
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href="#Orginal_Firmware_and_Terminal_Connection">Orginal
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Firmware and Service Menu </a><br>
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</li>
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<li><span>1.6 </span><a href="#Firmware_">Modified
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Firmware</a> </li>
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<li><span>1.7 <a href="#Program_and_Flashing_">Program
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and Flashing</a></span></li>
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<li><span>1.8 <a href="#Horus-Decoder_">Horus-Decoder</a><br>
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</span></li>
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<li><span>1.9 </span><a href="#OM3BC_Firmware_">OM3BC
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Firmware</a><a href="#Zilog_DFM_Decoder_Scripts_"><br>
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</a></li>
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</ul>
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</li>
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</ul>
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</div>
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<h2><a name="Hardware_Details_"></a>Hardware Details<br>
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</h2>
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<br>
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The radiosonde RS41-SG was introduced by Vaisala in 2013. <br>
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On <a
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href="https://www.vaisala.com/en/products/instruments-sensors-and-other-measurement-devices/soundings-products/rs41"
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target="_blank">Vaisala's website</a> it is possible to find
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very detailed specifications of the RS41-SG.<br>
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<br>
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<p style="margin-bottom: 0cm">LED Lights operation.</p>
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<p style="margin-bottom: 0cm">Red LED:<br>
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1 - Temperature or humidity sensor broken.<br>
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2 - Low battery.<br>
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3 - Battery should be empty.<br>
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4 - Expected interface, but there is none.<br>
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<br>
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Flashing Green LED:<br>
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</p>
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<p style="margin-bottom: 0cm">Insufficient data for GPS
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positions.<br>
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<br>
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After switching on the RS41, the LED will flashes four
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times.</p>
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<p style="margin-bottom: 0cm">Flashing Green LED:<br>
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1 - Turns red when something is wrong.<br>
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2 - Enable transmitter.<br>
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<br>
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When the Radiosonde is flying over 100 seconds,</p>
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<p style="margin-bottom: 0cm">1 - The LED goes out.<br>
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2 - And the transmitter operates at full power.</p>
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<br>
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<a href="https://github.com/bazjo/RS41_Hardware"
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target="_blank">RS-41 Details Thanks to Bazjo</a><br>
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<h2><a name="Needed_Stuff_"></a>Needed Stuff<br>
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</h2>
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<br>
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USB-TTL converter.<br>
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Some wires and connectors.<br>
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Soldering tools.<br>
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ST-LINK STM32.<br>
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<br>
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<h2><a name="RS-41_Connector_"></a>RS-41 Connector<br>
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</h2>
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<br>
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<img src="img/RS41pinout2.jpg" alt="" width="385" height="354"><br>
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<br>
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<p style="margin-bottom: 0cm">1 - GND</p>
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<p style="margin-bottom: 0cm">2 - Uart3 Rx</p>
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<p style="margin-bottom: 0cm">3 - Uart3 Tx</p>
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<p style="margin-bottom: 0cm">4 - PB1 * (10k + cap + 10k)</p>
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<p style="margin-bottom: 0cm">5 - Vcc (Boost out) 5.0V</p>
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<p style="margin-bottom: 0cm">6 VBAT 3.3V</p>
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<p style="margin-bottom: 0cm">7 - RST</p>
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<p style="margin-bottom: 0cm">8 - SWCLK</p>
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<p style="margin-bottom: 0cm">9 - SWDIO = SWID</p>
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<p style="margin-bottom: 0cm">10- GND</p>
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<br>
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<h2><a name="ST-Link_STM32_Connection_"></a>ST-Link STM32
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Connection<br>
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</h2>
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<p> <br>
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Download ST-LINK STM32 Software <a
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href="http://www.st.com/en/development-tools/stsw-link004.html"
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target="_blank">http://www.st.com/en/development-tools/stsw-link004.html</a><br>
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</p>
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<p style="margin-bottom: 0cm"><br>
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</p>
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<img src="img/ST-Link-V2-STM8-STM32.jpg" alt="stm" width="220"
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height="220"><br>
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Connect ST-LINK STM32:<br>
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<br>
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<p style="margin-bottom: 0cm">RS41 ----- ST-LINK</p>
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<p style="margin-bottom: 0cm">===================</p>
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<p style="margin-bottom: 0cm">Pin 1 ----- GND</p>
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<p style="margin-bottom: 0cm">Pin 8 ----- SWCLK</p>
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<p style="margin-bottom: 0cm">Pin 9 ----- SWDIO = SWID<br>
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<br>
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</p>
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<p style="margin-bottom: 0cm"><img src="img/conn.jpg" alt=""
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width="215" height="258"><br>
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<br>
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</p>
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<img src="img/ST-LINK.jpg" alt="" width="436" height="326"><br>
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<br>
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<h2><a name="Orginal_Firmware_and_Terminal_Connection"></a>Orginal
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Firmware and Service Menu </h2>
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<p style="margin-bottom: 0cm"><br>
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</p>
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For a terminal connection the following data pins are
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connected to the USB TTL Serial Converter in order to enter
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the service menu:<br>
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<br>
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<img src="img/sku_224704_1_small.jpg" alt="" width="140"
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height="140"><br>
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<br>
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<p style="margin-bottom: 0cm">Pin 1 ----- GND</p>
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<p style="margin-bottom: 0cm">Pin 2 ----- TxD</p>
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<p style="margin-bottom: 0cm">Pin 3 ----- RxD<br>
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</p>
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<p style="margin-bottom: 0cm"> Pin 4 ----- 3.3V<br>
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Or:<br>
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</p>
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Pin 5 ----- 3.3V<br>
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<img src="img/RS41pinout.jpg" alt="" width="346" height="490"><br>
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<br>
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<p>Build together -><br>
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</p>
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<img src="img/Terminal_connection.jpg" alt="" width="358"
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height="477"><br>
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<br>
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Connect a terminal (9k6 8N1) to the XDATA UART port. <br>
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<p style="margin-bottom: 0cm">Select COM Port (most probaly <a
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href="http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=225&pcid=41"
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target="_blank">Prolific driver</a> is needed on Windows)
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.</p>
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<p style="margin-bottom: 0cm">Start (hyper)terminal like Putty
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and connect to serial COM Port and use 9600 Baud.</p>
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<br>
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<p>Power on RS-41, Welcome message should appear with
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information about software version, serial number, etc: </p>
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<p>Vaisala RS41 Radiosonde SW
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V2.02.14
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<br>
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Copyright (c) Vaisala Oyj 2016. All rights
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reserved.
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<br>
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Serial number: P1234567
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<br>
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Pressure module serial number: Px SW
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V2.01
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<br>
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Transmitter frequency: 403.90
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MHz
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<br>
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Transmitter power:
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3/7
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<br>
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Enabled TX <br>
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</p>
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<br>
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Now enter the following five characters and press Enter :<br>
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<p style="margin-bottom: 0cm">STwsv<br>
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<br>
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Press ENTER again and you should see a service menu.<br>
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Where you can change the TX power, frequency and more
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options.</p>
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<br>
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(S)ensors
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Fre(q)uencies (P)arameters
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(A)lfa
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TX p(o)wer<br>
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TX (f)requency T(X)
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state (T)X registers TX
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contin(u)ous TX ran(d)om<br>
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TX (c)arrier (B)aud
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rate Ser(i)al no
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(R)ed LED info (N)o menu<br>
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(K)eep test mode S(W) version
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(M)easurements (L)aunch/Drop (E)xit<br>
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>Enabled TX<br>
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<br>
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A few examples:<br>
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<br>
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X Transmission of the data is stopped.<br>
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o Change power level 0 - 7.<br>
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f Change Frequency.<br>
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i Change Serial Number<br>
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K Keep test mode, with this setting you do not have to re
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enter the pw again in order to show the service menu.<br>
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M Measurements show the following menu:<br>
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<br>
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(S)ensors Fre(q)uencies S(W)
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reset (D)efault
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params (U)se sensor<br>
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(R)eg offset Reg (c)heck (T)
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self-check St(o)p sequence (H)eat ref<br>
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(G)PS
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(N)MEA
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D(I)rect GPS mode (E)xit<br>
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<br>
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D Direct GPS mode, with option the RS-41 can be used as a GPS
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mouse sending True NMEA bidirectional data via UART, you can
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also send "N" then just NMEA is output.<br>
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<br>
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Unfortunately, the settings are not retained after a power
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cycle.<br>
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<br>
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The (T)X Registers menu option allows reading and writing of
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arbitrary register values. <br>
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However, these changes are not persistent, and get overwritten
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on startup, and whenever the transmitter is disabled and
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re-enabled.<br>
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The (T)X register menu is used by entering:<br>
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Txx\r (where xx is the register value in hex)<br>
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You get a prompt as follows:<br>
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>T<br>
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Register number (00-7F) >77<br>
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Register value E3 ><br>
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At this point you can either send a \r to exit back to the
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main menu, or you can enter a value in hex + \r which will be
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written to that register.<br>
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Example RS41 onto the 70cm band (434.650 MHz) by programming
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the following values:<br>
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<br>
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0x75: 61<br>
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0x76: 10<br>
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0x77: D3<br>
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<br>
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A very handy online Calculator for more Frequencies is <a
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href="https://www.makemehack.com/2020/12/how-to-change-the-tx-frequency-of-the-vaisala-rs41-radiosonde.html"
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target="_blank">overhere</a>.<br>
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<br>
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P (parameters):<br>
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<br>
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Data ID is a hexadecimal number.<br>
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The value does not seem to have any meaning other than being
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used as a selector.<br>
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Values are strings or decimal numbers.<br>
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<br>
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ID card Value Changeable Note:
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<p style="margin-bottom: 0cm">10 5 *<br>
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20 14 *<br>
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30 0 *<br>
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40 0 *<br>
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45 S0341201 * Serial number<br>
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50 RS41-SG * RS41 model<br>
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||
60 20215 --- Firmware Version (V2.02.15)<br>
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70 9089 *<br>
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80 4 ---<br>
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90 5 ---<br>
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A0<br>
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B0<br>
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C0<br>
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D0 600 * Height [m] above the launch site that the RS41 must
|
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climb to before entering flight mode.<br>
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E0 18 * Low battery voltage threshold [100 mV] below which
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the probe will turn off (if the condition persists for some
|
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time). 18 = 1.8V<br>
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100180<br>
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||
110 60<br>
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||
120 1700<br>
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||
130 20<br>
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140135<br>
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150 50<br>
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||
160 1<br>
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||
170 RSM412 PCB type<br>
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180 R4550425 PCB serial<br>
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||
190 0000000000<br>
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||
1A0<br>
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1A8<br>
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1B0<br>
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1B8<br>
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1C0<br>
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1C8<br>
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1D0<br>
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1D5<br>
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1D8<br>
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||
1E0<br>
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200 29 --- Current battery voltage [100 mV]. 29 = 2.9 V.<br>
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||
210 0 ---<br>
|
||
220 41 --- Current CPU temperature [° C]<br>
|
||
230 48 --- Current radio temperature (Si4032) [° C]<br>
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||
240 1 ---<br>
|
||
250 42 --- Current temperature reference range [° C]<br>
|
||
255<br>
|
||
260</p>
|
||
<h2><a name="Firmware_"></a>Modified Firmware<br>
|
||
</h2>
|
||
<p style="margin-bottom: 0cm"><br>
|
||
There are a few different firmware's each with their
|
||
advantages.<br>
|
||
</p>
|
||
<br>
|
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1: 70cm Band, GPS and telemetry data in RTTY, APRS and CW on
|
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seperately defineable TX frequencies.<br>
|
||
<a href="https://github.com/df8oe/RS41HUP" target="_blank">https://github.com/df8oe/RS41HUP</a><br>
|
||
<br>
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||
<p style="margin-bottom: 0cm">2: 70cm Band, GPS and telemetry
|
||
data in CW, RS41-FOX - RS41 Amateur Radio Direction Finding
|
||
(Foxhunting) Beacon<br>
|
||
This codebase turns a Vaisala RS41 into a 70cm 'radio fox',
|
||
suitable for use in amateur radio direction finding
|
||
contests. <br>
|
||
<a href="https://github.com/darksidelemm/RS41FOX"
|
||
target="_blank">https://github.com/darksidelemm/RS41FOX</a><br>
|
||
</p>
|
||
<p style="margin-bottom: 0cm">Features:</p>
|
||
<p style="margin-bottom: 0cm"> Morse Ident containing callsign
|
||
& current battery voltage.<br>
|
||
Long CW beacon (user-defined length and number of repeats)<br>
|
||
Low-Voltage Cutout, to avoid destroying rechargable
|
||
batteries.<br>
|
||
Beacon GPS position when battery is below a user-defined
|
||
threshold.<br>
|
||
<br>
|
||
</p>
|
||
<p style="margin-bottom: 0cm">3: 70cm Band, GPS and telemetry
|
||
data in 4FSK and RTTY.<br>
|
||
<a href="https://www.rowetel.com/?p=5906" target="_blank">Information
|
||
on the 4FSK mode's performance.</a><br>
|
||
</p>
|
||
<p style="margin-bottom: 0cm">Recommend for short and long HAB
|
||
floater flights.<br>
|
||
</p>
|
||
<a href="https://github.com/darksidelemm/RS41FOX"
|
||
target="_blank"></a><br>
|
||
<p style="margin-bottom: 0cm"> Features:</p>
|
||
<p style="margin-bottom: 0cm">Powersave modes for Radio:<br>
|
||
Then the transmitter will turn off between transmissions,
|
||
saves about 50mA of power consumption.<br>
|
||
</p>
|
||
<p style="margin-bottom: 0cm">GPS in PowerSave Mode,
|
||
Transmitting @ 13 dBm = ~120 mA, not Transmitting = 30-50mA,
|
||
depending on GPS state.<br>
|
||
</p>
|
||
<p style="margin-bottom: 0cm">Deep Sleep Mode intended for
|
||
long duration flights only!<br>
|
||
Power consumption in sleep mode = 32mA @ 3V<br>
|
||
<br>
|
||
In this mode, the GPS is turned into a sleep mode in between
|
||
transmissions.<br>
|
||
During this sleep period, we sent one 'pip' every few
|
||
seconds.<br>
|
||
At the end of the sleep period, the GPS is powered back up,
|
||
and we await the GPS to obtain a fix before transmitting our
|
||
position. <br>
|
||
While waiting for GPS lock, we send a 'double pip'.</p>
|
||
<p style="margin-bottom: 0cm">Tracking sonde position from
|
||
habhub.<br>
|
||
<br>
|
||
<a href="https://github.com/darksidelemm/RS41HUP"
|
||
target="_blank">https://github.com/darksidelemm/RS41HUP</a></p>
|
||
<p style="margin-bottom: 0cm"><br>
|
||
</p>
|
||
<p style="margin-bottom: 0cm">Settings and Config (edit in
|
||
config.h) for this software must be written before flashing.<br>
|
||
<br>
|
||
</p>
|
||
<p>Grab the latest GNU ARM Embedded toolchain from here: <a
|
||
href="https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads"
|
||
target="_blank">https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads</a><br>
|
||
Extract the tarball to ~/opt/</p>
|
||
<p>Within the RS41HUP directory:<br>
|
||
Edit CMakeLists.txt and set the correct path to the un-tar'd
|
||
directory.<br>
|
||
cmake .<br>
|
||
make<br>
|
||
<br>
|
||
</p>
|
||
<img src="img/make.jpg" alt="" width="372" height="273"><br>
|
||
<p><br>
|
||
</p>
|
||
<p><b>Note:</b><br>
|
||
</p>
|
||
<p>For your own flights, you will need to request a payload
|
||
ID.</p>
|
||
<p>Payload IDs can be requested by either raising an Issue, or
|
||
a Pull Request on
|
||
https://github.com/projecthorus/horusdemodlib/</p>
|
||
Change the payload ID in config.h<br>
|
||
#define BINARY_PAYLOAD_ID 0 // Payload ID for use in Binary
|
||
packets <br>
|
||
<br>
|
||
Use the newly created bin or hex file to flash the RS-41.<br>
|
||
<br>
|
||
<h2><a name="Program_and_Flashing_"></a>Program and
|
||
Flashing
|
||
<br>
|
||
</h2>
|
||
<br>
|
||
<img src="img/ST-LINK2.jpg" alt="" width="501" height="375"><br>
|
||
<br>
|
||
Connect RS-41 and power on.<br>
|
||
<br>
|
||
Open ST-Link Utility:<br>
|
||
<p style="margin-bottom: 0cm"><br>
|
||
</p>
|
||
<img src="img/ST-Link_util.jpg" alt="st link" width="410"
|
||
height="300"><br>
|
||
<br>
|
||
<p style="margin-bottom: 0cm">Load bin or hex file.<br>
|
||
<br>
|
||
</p>
|
||
<img src="img/ST-Link_util2.jpg" alt="" width="415"
|
||
height="301">
|
||
<p style="margin-bottom: 0cm"><br>
|
||
</p>
|
||
<p style="margin-bottom: 0cm">In target menu select Connect.<br>
|
||
<br>
|
||
</p>
|
||
<img src="img/ST-Link_util3.jpg" alt="" width="357"
|
||
height="143">
|
||
<p style="margin-bottom: 0cm"><br>
|
||
</p>
|
||
<p style="margin-bottom: 0cm"> </p>
|
||
<p style="margin-bottom: 0cm">This message can happen:</p>
|
||
<p>Can not read memory!</p>
|
||
<p>Read out protection is activated</p>
|
||
<p>Disable Read Out Protection and retry.</p>
|
||
<p>In the target menu/option bytes/ disable bytes read out
|
||
protection.<br>
|
||
<br>
|
||
</p>
|
||
<img src="img/ST-Link_util4.jpg" alt="" width="484"
|
||
height="395"><br>
|
||
<br>
|
||
Target menu select Program and wait for flash to finish and
|
||
disconnect.<br>
|
||
Disconnect RS-41 and ST-LINK STM32.<br>
|
||
<br>
|
||
<h2><a name="Horus-Decoder_"></a>Horus-Decoder<br>
|
||
</h2>
|
||
<br>
|
||
Telemetry demodulator for the following modems in use by
|
||
Project Horus and <a
|
||
href="https://github.com/darksidelemm/RS41HUP"
|
||
target="_blank">RS-41 4FSK Modified Firmware</a><br>
|
||
<br>
|
||
Horus Binary Modes (4FSK)<br>
|
||
v1 - Legacy 22 byte mode, Golay(23,12) FEC<br>
|
||
v2 - 16/32-byte modes, LDPC FEC (Under development)<br>
|
||
RTTY (7N1, 7N2 and 8N2, standard UKHAS sentences with CRC16
|
||
only)<br>
|
||
<br>
|
||
<a href="https://rfhead.net/horus/horusgui/" target="_blank">Windows
|
||
builds overhere</a><br>
|
||
<a href="https://github.com/projecthorus/horusbinary"
|
||
target="_parent">Linux decoder for the 4FSK mode is
|
||
available overhere</a><br>
|
||
<br>
|
||
<img src="img/gqrx.jpg" alt="" width="662" height="425"><br>
|
||
<br>
|
||
Flash RS-41 with <a
|
||
href="https://github.com/darksidelemm/RS41HUP"
|
||
target="_blank">4FSK Modified Firmware</a><br>
|
||
Tune in with any SDR Application (<a
|
||
href="https://github.com/projecthorus/horusdemodlib"
|
||
target="_parent">or the Horus rtl_fm scripts</a>) on the
|
||
frequency specified in config.h in USB Mode.<br>
|
||
<br>
|
||
Start Horus-gui decoder:<br>
|
||
<br>
|
||
<img src="img/horus-gui.jpg" alt="" width="678" height="392"><br>
|
||
<br>
|
||
Select audio device (in this example YDP thru GQRX is used).<br>
|
||
Mode RTTY of 4FSK, check mark for data feed to <a
|
||
href="https://tracker.habhub.org/" target="_blank">habhub
|
||
upload.</a><br>
|
||
<br>
|
||
Output is also possible with UDP thru <a
|
||
href="https://github.com/projecthorus/chasemapper/"
|
||
target="_blank">Chasemapper.</a><br>
|
||
<p> </p>
|
||
<h2><a name="OM3BC_Firmware_"></a>OM3BC Firmware<br>
|
||
</h2>
|
||
<br>
|
||
70cm Band, GPS and telemetry data in RTTY, APRS and CW on
|
||
seperately defineable TX frequencies,<br>
|
||
configurable settings thru terminal serial connection from the
|
||
radiosonde. <br>
|
||
<a href="http://www.om3bc.com/docs/rs41/rtty.hex"
|
||
target="_blank">Hex file for flashing from om3bc.com</a><br>
|
||
Recommend for playing with the Radiosonde but not for real
|
||
flight's GPS outage occur for shorts periods during flight.<br>
|
||
APRS callsign bugs.<br>
|
||
<br>
|
||
<p style="margin-bottom: 0cm">Start (hyper)terminal like Putty
|
||
and connect to serial COM Port and use 9600 Baud.</p>
|
||
Power on RS-41, Welcome message should appear:<br>
|
||
<br>
|
||
<img src="img/welcome.jpg" alt="ter" width="367" height="229">
|
||
<p style="orphans: 2; widows: 2"><span style="font-variant:
|
||
normal"><font color="#000000"><font face="Liberation
|
||
Serif, serif"><font style="font-size: 12pt" size="3"><span
|
||
style="letter-spacing: normal"><span
|
||
style="font-style: normal"><span
|
||
style="font-weight: normal">$$$$$$ STM32 RTTY
|
||
& APRS tracker by OM3BC ...<br>
|
||
cmd></span></span></span></font></font></font></span><span
|
||
style="font-variant: normal"><font color="#000000"><font
|
||
face="Times New Roman"><font style="font-size: 14pt"
|
||
size="4"><span style="letter-spacing: normal"><span
|
||
style="font-style: normal"><span
|
||
style="font-weight: normal"><br>
|
||
<br>
|
||
</span></span></span></font></font></font></span><span
|
||
style="font-variant: normal"><font color="#000000"><font
|
||
face="Liberation Serif, serif"><font style="font-size:
|
||
12pt" size="3"><span style="letter-spacing: normal"><span
|
||
style="font-style: normal"><span
|
||
style="font-weight: normal">Allowed commands
|
||
(not case sensitive):<br>
|
||
<br>
|
||
BUTTON ON / OFF - use button to turn off /
|
||
this parameter specifies whether the push
|
||
button can be used to turn off the radiosonde
|
||
or not.<br>
|
||
LEDs on / off - use LEDs / you can save energy
|
||
when you do not use LEDs. After switching on,
|
||
the LEDs always work, but when set to OFF,
|
||
they automatically turn off after 10 minutes
|
||
of operation.<br>
|
||
POWER n - rf power n = 1 to 7 (7 is max.) /
|
||
output power setting 0 = smallest, 7 = maximum
|
||
power (approx. 40 mW).<br>
|
||
APRSFRQ n - n = aprs frequency in kHz / APRS
|
||
frequency (recommended frequency is 432,500
|
||
MHz)<br>
|
||
RTTYFRQ n - n = rtty frequency in kHz / RTTY
|
||
frequency. This frequency is also valid for CW
|
||
identification.<br>
|
||
APRSCALL string - aprs callsign (up to 6
|
||
characters)<br>
|
||
RTTYCALL string - rtty callsign (up to 15
|
||
characters)<br>
|
||
CWIDMESS string - cw message (up to 25
|
||
characters)<br>
|
||
RTTY on / off - send rtty message<br>
|
||
HOLDOFF n - n = time between two rtty messages
|
||
in seconds<br>
|
||
BAUD n - n = rtty baudrate<br>
|
||
DBITS n - n = rtty databits (7 or 8)<br>
|
||
SBITS n - n = rtty stop bits (1 or 2)<br>
|
||
SHIFT n - n = 1,2,3,4 1 = 270, 2 = 540, 3 =
|
||
810, 4 = 1080 Hz<br>
|
||
TEMP on / off - send temperature in rtty
|
||
messages / (The value is the temperature of
|
||
the radio chip, not the environment.)<br>
|
||
ALT on / off - send altitude in rtty &
|
||
aprs messages<br>
|
||
SPEED on / off - send speed in rtty messages<br>
|
||
COURSE ON / OFF - send course in rtty messages<br>
|
||
UBAT on / off - send battery voltage in rtty
|
||
messages<br>
|
||
USYS on / off - send system voltage in rtty
|
||
messages / This is a constant value for
|
||
testing only.<br>
|
||
SAT on / off - the number of GPS satellites
|
||
heard in rtty messages<br>
|
||
APRS on / off - send aprs messages<br>
|
||
SPEEDCOURSE on / off - send speed and course
|
||
in aprs messages<br>
|
||
SYMBOL string - symbol from aprs symbol table
|
||
(2 characters) / two characters that determine
|
||
how the radiosonde appears on the www.aprs.fi
|
||
website. <br>
|
||
SSID n - aprs ssid n = 1 to 15 / </span></span></span></font></font></font></span><span
|
||
style="font-variant: normal"><font color="#000000"><font
|
||
face="Liberation Serif, serif"><font style="font-size:
|
||
12pt" size="3"><span style="letter-spacing: normal"><span
|
||
style="font-style: normal"><span
|
||
style="font-weight: normal">t</span></span></span></font></font></font></span><span
|
||
style="font-variant: normal"><font color="#000000"><font
|
||
face="Liberation Serif, serif"><font style="font-size:
|
||
12pt" size="3"><span style="letter-spacing: normal"><span
|
||
style="font-style: normal"><span
|
||
style="font-weight: normal">he caller ID of
|
||
the APRS. <br>
|
||
TXD n - Tx delay n = 10 to 500<br>
|
||
MICE on/off - send coded aprs messages in
|
||
mic-e format<br>
|
||
TELEMETRY on/off - send telemetry data in aprs
|
||
messages<br>
|
||
APRS_EVERY n - time between aprs messages is n
|
||
x holdoff / APRS packages are not required to
|
||
be given too often. This parameter specifies
|
||
the time between the two packets.<br>
|
||
TAIL_EVERY n - time between tail text is n x
|
||
aprs time / frequency of transmission of the
|
||
attached information text (comment field).<br>
|
||
TTEXT string - tail text (up to 100
|
||
characters) / attached information text
|
||
(comment).<br>
|
||
CWID on/off - send cwid messages<br>
|
||
CWID_EVERY n - time between cw messages is n x
|
||
holdoff<br>
|
||
CW_SPEED n n = the CW identification speed in
|
||
WPM.<br>
|
||
IGATE on/off - monitoring aprs message via
|
||
UART / after the parameter has been enabled,
|
||
the radiosonde sends a text through the serial
|
||
port that the iGate can link to.<br>
|
||
NMEA on/off - send MNEA GPGGA and GPRMC
|
||
messages via UART / If the parameter has been
|
||
enabled, the radiosonde sends standard NMEA
|
||
GPGGA and GPRMC text via the serial port.<br>
|
||
DISP - shows the set parameters.<br>
|
||
SERCOM n - speed of serial communication port
|
||
(n = 300 to 115200)<br>
|
||
DEF - set parameters to default values.<br>
|
||
SAVE - save parameters to flash<br>
|
||
<br>
|
||
If you need help, you can use the HELP or the
|
||
? command. </span></span></span></font></font></font></span><br>
|
||
<br>
|
||
</p>
|
||
<img src="img/w7.jpg" alt="gqrx2" width="641" height="404"><br>
|
||
<br>
|
||
RS-41 Sending APRS Decode with Soundmodem.<br>
|
||
<br>
|
||
<img src="img/xub.jpg" alt="gqrx" width="643" height="405"><br>
|
||
<br>
|
||
RS-41 Sending RTTY Decode with FLdigi.<br>
|
||
<br>
|
||
<img src="img/ax25.jpg" alt="gps" width="642" height="386"><br>
|
||
<br>
|
||
APRS Position showing in APRSIS32.<br>
|
||
<br>
|
||
<img src="img/PE2BZ.jpg" alt="raam" width="640" height="437">
|
||
<p style="orphans: 2; widows: 2">Connect it with Solar panels
|
||
like PE2BZ did and launch it :)</p>
|
||
<p> <br>
|
||
</p>
|
||
<p>Note:</p>
|
||
<p><a href="https://airspy.com/download/" target="_blank">SDRSharp</a></p>
|
||
<p><a href="http://gqrx.dk/" target="_blank">Gqrx</a></p>
|
||
<p><a href="http://uz7.ho.ua/packetradio.htm" target="_blank">UZ7HO
|
||
SoundModem</a></p>
|
||
<p><a
|
||
href="https://drive.google.com/open?id=160_7nVCYmewZSPXMG9on-2Gah_uHO5KP"
|
||
target="_blank">FLdigi Appimage</a></p>
|
||
<p><a
|
||
href="https://sourceforge.net/projects/fldigi/files/fldigi/"
|
||
target="_blank">FLdigi Windows</a></p>
|
||
<p>ST-LINK STM32 / USB-TTL Converter can be found on Ali/Ebay.</p>
|
||
</div>
|
||
</div>
|
||
</body>
|
||
</html>
|