FPV backpack PCB build

If you've been building electronic bits or modifying stuff you've bought then tell us all about it here. A good place to discuss the installation of 2.4GHz DIY modules too.

Re: FPV backpack PCB build

Postby suxi » Tue Aug 13, 2013 1:02 pm

Hi Pam,

CNCing a PCB sounds cool and you might as well go for it for the fun of it. I ended up simply soldering capacitors (as per module instructions), dip switch and antenna directly to the boards (see post No 1 on page 38). That is a piece of cake, lightweight and works great. In my humble opinion there is really no need for a pcb.

All the best

suxi
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Re: FPV backpack PCB build

Postby pam » Tue Aug 13, 2013 1:29 pm

Hi suxi, I like your solution (I'm a fan of parsimony too). For my application a circuit board makes sense due to confinement problems & mounting simplicity. I take it that Bruce's original circuit diagrams have been confirmed by you & others? Are you using the 5.8G receiver module? Pam.
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Re: FPV backpack PCB build

Postby suxi » Tue Aug 13, 2013 1:50 pm

Yes, I m using the receiver modules as well. If you search this thread you'll find revised transmitter and receiver boards by Tim. He's got a pdf link in is footer.
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Re: FPV backpack PCB build

Postby Jase1973 » Tue Aug 13, 2013 1:56 pm

pam wrote:Hi suxi, I like your solution (I'm a fan of parsimony too). For my application a circuit board makes sense due to confinement problems & mounting simplicity. I take it that Bruce's original circuit diagrams have been confirmed by you & others? Are you using the 5.8G receiver module? Pam.


The circuit works, components can be omitted or substituted and still get a working result, but this has been optimized to minimize interference.

a RX circuit has knocked together it's quite simple.
just needs a stable 5v in and an antenna. maybe a couple of 330 or 470 uF capacitors too.
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Re: FPV backpack PCB build

Postby terma-nator » Tue Aug 13, 2013 2:08 pm

If I were you Pam, I would follow TIMJC's Post about making the boards.

Here is a good one to read...http://www.rcmodelreviews.com/forum/viewtopic.php?f=47&t=1888&start=160#p15279

He also has a complete parts list https://dl.dropbox.com/u/3706414/FPV/DIY%20FPV%20TX-RX.pdf (with some sources) and pretty much all you need to build them)
Or you could just buy completed units from hobbyking.
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Re: FPV backpack PCB build

Postby amtpdb1 » Wed Aug 21, 2013 4:14 am

Anybody have any updates on their builds or changes to module modes or.......?
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Re: FPV backpack PCB build

Postby suxi » Wed Aug 21, 2013 8:35 am

What exactly would you like to know? Besides the "exciting news" of not matching modules and the solution (see posts above) everyone should be happily fpving.

Best wishes

suxi
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Re: FPV backpack PCB build

Postby VCR » Thu Aug 22, 2013 12:34 pm

Hi Pam

Any Luke white CNCing the circuit board. I was thinking to do the same.

Vasco Reis

pam wrote:Hi, I'm following Bruce's RCModel Reviews FPV Project and trying to make a couple of backpacks & receivers with :

600TVL SONY SUPER HAD CCD D-WDR Board Camera w/ OSD DNR (http://www.ebay.co.uk/itm/600TVL-SONY-S ... 0542076742), &

5.8G 200mw Wireless AV Transmitter Module & 5.8G Video AV Receiver Set for FPV Sy (http://www.ebay.com/itm/251063961973?ss ... 1439.12649).

I noticed several people have succeeded on this forum & so I wondered if I could get a few details confirmed?

1) Are the circuit details (http://www.rcmodelreviews.com/fpvbackpack02.shtml) correct & complete?
2) Does anyone have a link to, or details of a receiver circuit?
3) Has anyone tried a stereo version?
4) I am going to CNC a double sided circuit board. Anyone else tried this?

Thanks, Pam.
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Re: FPV backpack PCB build

Postby VCR » Fri Aug 23, 2013 12:45 pm

Hello
In new to all of this but I really would like to give it a try.
I want to build one of Tim´s circuit boards and I have the possibility to cut it in CNC. I downloaded Eagle files but unfortunately they aren’t working. Can same one share a picture of the board whit the length and width? Ill have to draw it 1/1 in CAD to generate the Gcode if I want to machine it.
Thanks in advance and Ill share the DXF file when it’s done.
Vasco Reis
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Re: FPV backpack PCB build

Postby pam » Sun Aug 25, 2013 11:18 am

Hi Vasco, I’m also going to draw the geometry myself. I find pcbToGcode is too much of a compromise (though I’ve only used it a couple of times). I also prefer to divide the circuit into regions to minimize the amount of cutting. I’ll upload an example photo ( http://www.flickr.com/photos/100780492@N03/9590550234/ ) of a single sided WiFi router add on board I made to carry an smt SD card socket, serial IO level shifting IC‘s & sockets. If your interested I can give you a copy of my geometry(Cambam) and/or gcode (when I’ve made it :) ), Pam.
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