So after a few, shall we say unplanned landings, my GoPro got a bit of a beating and with the last dtich effort the battery caved in the screen on the back of my camera. Before it starts getting expensive replacing cameras, as we all crash. I decided to mod my goggles with a DVR. A few benefits of course going the DVR route, better battery life so more time in the air, less to break and less instablilities from have the big wind sail on the front of the drone.
The first thing I did was order my Eachine ProDVR from Unmannedtechshop.co.uk. Competitively priced with quick delivery.
So we start here. Here is the kit you get and the first thing to do with your goggles is split them apart.
Next we need to remove the 4 Philips head screws that holds it all together
Carefully remove the contents, you may find the battery has a blob of glue, so dont pull it out by the wire or you'll need a new battery too.
Now going back to the top part you took off when opening the goggles up, on the inside is a small clear bit of plastic that emits te glow from the status LED. pull this of as you'll be threading the wires for the DVR through the hole.
You only need this group of wires, thread the wires through the top, through the LED whole as above. Once the wires are through, they then need "tinning" in preperation for soldering onto the reciver moduel. Solder the 3 black wires together
Next, remove the battery as soldering wires on to a live board might not be the best idea, just incase. Obvious i know, but someone might not be lucky. Then solder on the wires in the same locations as pictured.
starting from the FAR RIGHT, the first connection is for the ground (black wires)
second from the right is the video signal (yellow)
third from the right is the audio (white)
and finally, the fifth from the right is the 5v+ (red)
Screw on the antenna and plug in the battery, power it up to make sure it powers the DVR. Touch wood everything's gone right and now the DVR has a shining red light. Power it off, remove the antenna and carefully place everything back together in the opposite way you took it apart. use the sticky pads that comes with the kit to fix it to the goggles. position it more to the middle though than i did as the antenna gets in the way if you want to plug the RCA cable in, which you will need to do inorder to set up the DVR.
You will need to update the firmware for the DVR, as without update you will only be able to record in VGA resolution. and not HD. the firmware update can be found on the Banggood website.
This is my first test with footage. The camera on the drone is the Eachine 700tvl cmos 110. the quality really depends on your fpv camera and the antennas used. in this video the vtx was an eachine 200mw, Aomway vtx antenna and the stock antenna on the goggles