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During development, its ok to use the 2.4Ghz xbee. During flight tests its extremely important to use the S3B 900Mhz modules, as the 2.4Ghz will interfere with the DJI light bridge connection. In addition the 900Mhz modules provide a longer range (should be at least 10km). |
Shortened Datasheets
The Xbee documentation is pretty long, however if you're just trying to understand the communication structure, the following two datasheets should provide most of the information you'll need. The first file describes the AT commands the module uses. The AT commands are used to configure each module, and it is what software like XCTU uses. The second file describes the API packet structure that the PicPilot sends to the Xbee's for various functionalities (like sending a TX packet, getting RSSI, etc).
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| name | Xbee900Docs-ATCommands.pdf |
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| height | 150 |
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| name | Xbee900Docs-ApiFrameStructures.pdf |
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| height | 150 |
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