HaddingtonDynamics / Dexter

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Plugging in more than 1 USB device requires a USB hub. #77

Open JamesNewton opened 4 years ago

JamesNewton commented 4 years ago

As soon as #64 was addressed, it became obvious that having multiple devices plugged in would be a very good idea.

This USB hub seems to work well, can can be powered from our own internal +5 volt bus as needed: https://www.adafruit.com/product/4115 Currently available here: (as of 2020/06/01) https://www.amazon.com/Adafruit-4115-Zero4U-Port-Without/dp/B07PP91HWD/ref=sr_1_2

There is some concern that it may not be available in the future, but the basic footprint is for the RasPi model Zero, so others will be available, e.g. https://www.amazon.com/MakerSpot-Stackable-Raspberry-Connector-Bluetooth/dp/B01IT1TLFQ/ref=pd_cp_147_1/137-9153670-7027920

The placement of the USB ports and the input port may vary.

For now, just strap tying it inside a skin or onto the center spar seems to work. The WiFi dongle ( #51 ) and Audio adapter / speakers ( #72 ) can perhaps be mounted with it.

JamesNewton commented 4 years ago

I've had problems with the above unit dropping off-line after extended on-time. It /may/ have shorted out to the carbon fiber strake it was mounted on, but I had a strip of cardboard behind it and that did not appear to be perforated, so I'm doubtful that was the issue. Will try again with plastic or rubber insulator.

JamesNewton commented 4 years ago

Also available from Mouser: https://www.mouser.com/ProductDetail/485-4115 and Digikey (but at a higher price) https://www.digikey.com/product-detail/en/adafruit-industries-llc/3298/1528-2083-ND/6834072