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32 lines
1.3 KiB
Markdown
32 lines
1.3 KiB
Markdown
# Bluetooth Telemetry in PPM Mode
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## Telemetry
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There are 4 protocols supporting telemetry: Hubsan, DSM, FrSkyD and FrSkyX.
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Hubsan displays the battery voltage and TX RSSI.
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DSM displays TX RSSI and full telemetry.
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FrSkyD displays full telemetry (A0, A1, RX RSSI, TX RSSI and Hub).
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FrSkyX displays full telemetry (A1, A2, RX RSSI, TX RSSI and Hub).
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## If used in PPM mode
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Telemetry is available as a serial output on the TX pin of the Atmega328p using the FrSky hub format for Hubsan, FrSkyD, FrSkyX and DSM format for DSM2/X. The serial paramets depends on the protocol:
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Protocol|Serial Parameters
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--------|-----------------
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Hubsan|9600bps 8n1
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FrSkyD|9600bps 8n1
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FrSkyX|57,600bps 8n1
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DSM2/X|125,000bps 8n1
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The serial stream is also available on pin 5 of the Module connector (pins numbered from top to bottom) on the [4-in-1 module](Module_BG_4-in-1.md) and the [V2.3d modules](Module_Build_yourself_PCB.md) provided the Tx jumper has been soldered. See the linked module documentation for what this means.
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You can connect it to your TX if it is telemetry enabled or use a bluetooth adapter (HC05/HC06) along with an app on your phone/tablet ([app example](https://play.google.com/store/apps/details?id=biz.onomato.frskydash&hl=fr)) to display telemetry information and setup alerts.
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