Hello I'm Graham and I hope everyone's having a great day welcome to this
update video on the projects I'm working on
to allow the field transfer all files from your SDXC card onto an external
hard disk or SSD drive now this is a result of the unit that I was going to
go to that function the Blaine strike not actually living up to its design
expectations so I'm looking at alternative ways of backing up files in
the field now I did intend to use the Raspberry Pi 3 to enable me to transfer
files from the SD card over to the SSD but that only has USB 2.0 ports on it so
what I decided to do was to buy another single board computer which is the ROK
64 which is this device here and this one has USB 3.0 port on it which I can
then use a hub to allow the two drives to connect so I need to write the
program for that first of all but in the meantime I thought keep it simple and
having the Android operating system here on this YP 20 Pro meant that there is a
file transfer program on there which would probably work now this is the USBC
connector and it's got an OTG cable here so we've got the USB C 2 USB 3 type
connector on that I've got a USB 3.0 hub into the hub I've got two devices one is
a USB 3.0 reader and in there I've got a 64 gigabyte SDXC card with 4 gigabytes
of photos RAW files both panasonic and canon files on there and some MP 4th
movies as well the other port has got my 250 gigabyte SSD drive so then here is
to use the Android operating system here as the go-between between the two
devices so on the system we have the files transfer program it allows you to
look at the internal directory structure of the phone but more importantly to any
of the drives connected via the OTG our on-the-go cable so we've got two devices
at sea one is the 64 gigabyte Drive and the
other is the 250 gigabyte Drive so it's seen both these drives so to transfer
the files from this xdxd card I need just to select the source Drive which is
the 64 gig and what I'm going to do is transfer everything that's in the DCIM
folder and that is the 4 gigabyte have both photos and video files then we use
the copy facility so that's the copy command and it's then now select a local
destination drive so I'm going to go back to the menu and select the 250
gigabyte Drive once we got that selected we can create a new folder I'm just
going to call this FQ and go or confirm so we've now got that directory select
the directory and then we go paste and now it's transferring those files from
the SDXC card through the Android operating system on the YP 20 Pro and
writing them back out to the SSD drive now my tests prove this happened in 1
minute and nine seconds for 4 gigabytes if you use the USB 2.0 hub that file
transfer went to 2 minutes and 55 seconds so about 3 times as long using
USB 2.0 compared to using USB 3.0 if you got a lower spec phone which may only
have three on the go over to USB 2.0 then obviously you need to use a 2.0 hub
and 2.0 readers if you want to keep the cost down so that's troubling away quite
nicely and we're up to 70% I say doesn't matter what the file types are it will
transfer them on a one-to-one basis so whatever type of file you've got in
there raw JPEG PNG doesn't matter it will transfer them directly across so
we're approaching the hundred percent so those are the files now which overs are
residing here on the SSD so if I just um that SSD Drive you can see that on the
Panasonic 4 we've got CR - we've got CR three and
we've got an mp4 file there and JPEG so if we just open a JPEG find a JPEG here
that's most of the test files for another project but that's open this one
open it with photos and can see the opens the file directly from that SSD so
that's really an elegant solution to a problem so if you've got an Android
operating system phone you can do this great cheaply unfortunately Apple
iPhones you can't do this with because there's no way you can connect a hard
disk via a wired USB connection through the Lightning port or on the camera
connect gets Apple just don't allow developers to get access to that
facility so unfortunately this is restricted to Android phones again you
can buy a cheap Android phone and this one is illegal
it's about 40 pounds on the second-hand market and again it's OTG over USB 2.0
but the system does work so that's an update on the situation hope you found
that useful I'll bring you more information on this rock 64 single board
computer how I get it to work I'll install an Android operating system on
that and then connect the USB 3 hub together and see if we get an inquiry
solved in this one minute and nine seconds using the same peripherals so
thanks again for watching of course if you're a new viewer to the channel and
you like what you see please do click that subscribe button and the Bell
notification icon and you'll be then advised when I upload any new videos to
the series also check out my father epic blog there'll be much more information
on these devices in the Tech Talk pages I'll put a link to that in the video
description below so as usual thanks very much for watching please do take
care and I hope to see you all in my next one
good bye for now