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REV Robotics Control Hub -- Legal for next Season?

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  • REV Robotics Control Hub -- Legal for next Season?

    Over the past season, the REV Robotics "Expansion hub" has been legal for FTC teams competing in the United States. Meanwhile, there also exists a device called the "Control Hub", which incorporates many of the essential components of the RC phone, and therefore avoids disconnects between the phone and the hub. The Control Hub has been used in FIRST Global. When might we expect FIRST to announce whether the Control Hub will be legal in the US for the coming FTC season?

    (Many continuing teams may be planning budgets, and/or considering purchase of phones or Expansion Hubs. I would help if we can plan ahead for the next season.)

    --Roy Mead
    FTC 9915

  • #2
    We'd like to know more about this option as well, especially as many teams have restricted grants that can only be used for registration or FIRST shopping cart items.
    Michael P Clark
    Founding Mentor, FTC 9958
    http://www.redfishrobotics.com
    "We're Hooked on FIRST"

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    • #3
      Greg from REV said they were unable to get enough boards to make it happen this season.

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      • #4
        They will not be legal for this season. When talking to REV at worlds, they said that they were unable to make a consistent amount of the product due to fluctuating RAM prices. They didn't want to end up with a shortage like we had this year for expansion hubs.

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        • #5
          As others have stated, these are not going to be available for the 2018/2019 season.

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          • #6
            Hi Greg, according to the attached application note from Qualcomm, an external Wi-Fi antenna is "required if the DragonBoard 410c is mounted inside a conductive enclosure. In such a scenario, the on-board Wi-Fi antenna cannot pick up Wi-Fi signals from outside the enclosure. Therefore, an external Wi-Fi antenna is required, ..."

            In the case of an FTC bot, the DragonBoard 410c on the Control Hub will often be "enclosed" by the bot's conductive frame, structure, and/or mechanisms. Are there any plans to put a Wi-Fi SMA port on the Control Hub so that an external Wi-Fi antenna can be connected to the DragonBoard 410c?

            Some USB Wi-Fi adapter dongles have an SMA port. Connecting a Wi-Fi dongle to a USB port of the Control Hub would allow an external Wi-Fi antenna to be connected to the Control Hub. This would also allow Wi-Fi communications with the Control Hub on 5 GHz channels as the DrangonBoard 410c only supports 2.4GHz channels. However, having to connect a USB Wi-Fi dongle to the Control Hub would introduce a point of failure.
            Attached Files

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            • #7
              Originally posted by Alec View Post
              Hi Greg, according to the attached application note from Qualcomm, an external Wi-Fi antenna is "required if the DragonBoard 410c is mounted inside a conductive enclosure. In such a scenario, the on-board Wi-Fi antenna cannot pick up Wi-Fi signals from outside the enclosure. Therefore, an external Wi-Fi antenna is required, ..."

              In the case of an FTC bot, the DragonBoard 410c on the Control Hub will often be "enclosed" by the bot's conductive frame, structure, and/or mechanisms. Are there any plans to put a Wi-Fi SMA port on the Control Hub so that an external Wi-Fi antenna can be connected to the DragonBoard 410c?

              Some USB Wi-Fi adapter dongles have an SMA port. Connecting a Wi-Fi dongle to a USB port of the Control Hub would allow an external Wi-Fi antenna to be connected to the Control Hub. This would also allow Wi-Fi communications with the Control Hub on 5 GHz channels as the DrangonBoard 410c only supports 2.4GHz channels. However, having to connect a USB Wi-Fi dongle to the Control Hub would introduce a point of failure.
              Just to be clear, by "external Wi-Fi antenna" I am referring to an antenna that is mounted externally to the conductive materials on the bot, i.e. on top of the bot. The antenna would be connected to an RP-SMA port of the Control hub via an RP-SMA extension cable.

              Apparently the most common type of SMA port on a Wi-Fi router is "RP-SMA Female". An RP-SMA Female port on the Control Hub will allow teams to make use of readily available RP-SMA Wi-Fi antennas and extension cables.

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