USB – Simple idea of attachment

Universal Serial Bus (USB) is one of the few interfaces on computers that is certainly a big success story. You plug in your Camera, Memory stick etc, and in most cases it loads up the drivers and in a few seconds you are away, who can remember the hours spent messing around configuring RS232? However, on smaller devices, Tablets and Mobile devices, the USB socket and plug are scaled down in size (Micro or Mini USB), my Chuwi Vi8  is no exception with only "One" Micro USB socket and one mini HDMI:




The One micro USB socket is not only used for data, but also for charging the device. A lot of excess  daily wear and tear, plugging in and out switching between USB devices. Of course the idea of cutting down to one socket is to help keep costs down in production, but how long can the socket possibly last before something gives? 







The best way is to expand by using a cheap USB Hub, and there are quite a few different types available for a couple of Pounds. These also allow conversion back to standard USB for other devices, and a seperate power feed via another Micro USB socket which can be used to charge the device while the hub is connected in theory anyway, read on:








Although this solves the problem of USB connection. There is another problem with this arrangement, the weight of the hub and devices hanging on the end of the Tablet, put unwanted stress on the USB Micro socket on the side of the tablet, there has got to be a be a better way of fixing this and tidying it all up.



I was lucky, I had a  case that came with a USB Keyboard, could I work out some sort of method of attaching the hub to the case? I had an idea!





A visit to a discount stationary shop while I was in town, I came across a packet of medium sized binder clips. The sort you use for holding files of paper together and hanging up on a hook for reference. The clips came in a pack of twelve for 69p making the fix less than 6 pence!






The clip provides an excellent amount of force suitable for the job of trapping the hub to the rear of the case. There is no movement and it is quite secure:








Once happy that it is square and fixed to the rear of the case, the two leverage arms, hooks or whatever you wish to call them can be detached from the main body of binder clip and discarded.




This provides the solution, and as you can see all the weight and stress is removed off the main cable and the micro USB socket on the tablet. With the sockets happy and tidy on the back of the case ready for use:


All seemed ok?  I could then use the hub with various USB devices, but when I came to charge the tablet via the micro USB charging socket on the hub, this was found not to work? I came to the conclusion it was not wired into the hub or faulty in someway, I contacted the ebay dealer for a replacement he offered me $1, so I had to use the ebay tools to force his little Chinese hand to give me my full refund.

Shortly after, I found what looked to be a better USB hub from another reliable ebay dealer which had a switch to change between charge, or data, plus an extra USB Port:



This was a slightly tighter fit under the binder clip due to the hub casing being slightly thicker, but all is now well, I can now charge the tablet without removing the mini USB from the side of the tablet, plus I have three USB sockets at hand, one which is taken up with the USB keyboard in the case:






Steve, G1KQH, is a regular contributor to AmateurRadio.com and writes from England. Contact him at [email protected].

4 Responses to “USB – Simple idea of attachment”

  • Mike, WV2ZOW:

    Steve: Its never going to end. As soon as one gets all the cables needed, the format changes. Your next device will have a USB 3 connector, or a micro USB 3, and that will give way to the USB C connector. That one really gets it down to 1 connector on the tablet — its the same connector for just about all devices from keyboards to monitors. You won’t have to use hubs either – devices daisy chain. One question I have — does a micro USB really save that much space over a mini USB? –Mike, WV2ZOW

  • Steve G1KQH:

    Just the type of plug is different, Mike.. I agree anything you buy today is history tomorrow. But as my old boss used to say, you buy it, and stick with it until its time to throw in the dustbin(trash).

    73 Steve

  • Phil f1hbo:

    No, you modify it!

  • Steve G1KQH:

    Plenty of USB info here: https://en.wikipedia.org/wiki/USB

    73 Steve

Leave a Comment

Subscribe FREE to AmateurRadio.com's
Amateur Radio Newsletter
News, Opinion, Giveaways & More!

E-mail 
Join over 7,000 subscribers!
We never share your e-mail address.



Also available via RSS feed, Twitter, and Facebook.


Subscribe FREE to AmateurRadio.com's
Amateur Radio Newsletter

 
We never share your e-mail address.


Do you like to write?
Interesting project to share?
Helpful tips and ideas for other hams?

Submit an article and we will review it for publication on AmateurRadio.com!

Have a ham radio product or service?
Consider advertising on our site.

Are you a reporter covering ham radio?
Find ham radio experts for your story.

How to Set Up a Ham Radio Blog
Get started in less than 15 minutes!


  • Matt W1MST, Managing Editor




Sign up for our free
Amateur Radio Newsletter

Enter your e-mail address: