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Oct 30, 2017, 08:59 PM
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All the ULRS Mini modules are much more reliable than the OrangeRX or Wolfbox modules, because of their protection resistors on almost all pins. I'd also recommend to use a simple ULRS Mini such as spongeboard or monkeyboard.

Spongeboard has a slight difference in its wiring but is supported with a setting in ULRS CC.

Paul, can you confirm if you're using the Pixracer ? If so did you add a protection resistor on the TX line ?
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Oct 30, 2017, 09:16 PM
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FlyingW's Avatar
flipflap,

Yes a Pixracer. I did not add a protection resistor on the Tx line. I suppose you mean from the Orange module's serial Tx pin out to the TELEM1 serial port in on the Pixracer? Would I need this addition with a Spongeboard?

I'm very depressed right now. I was planning to fly with ULRS this week but now I am probably months away if I have to figure out how to build the hardware.

For the Spongeboard, do you or anyone else reading this know of a complete list of known working parts with links to a USA supplier? I see generic lists of parts and example links to French companies - they are probably great but I'll likely get it wrong if I try to buy stuff I do not understand well and and try to do it another language.

For example. see the screenshot below. I tried to look up the simplest part, a 1/4w 3.3k resistor. Digikey has thousands of them, but how do I narrow it down to the right ones?

Carbon film, carbon composite, metal film? etc. etc.

Thanks,

Paul
Last edited by FlyingW; Oct 30, 2017 at 09:39 PM.
Oct 30, 2017, 09:27 PM
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Last edited by yak-54; Feb 22, 2018 at 02:51 AM.
Oct 30, 2017, 09:43 PM
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FlyingW's Avatar
All really cool Yak-54. A couple of questions about the boards. When I go to the dirtypcbs site, and add your board to the cart, a new page with a bunch of questions about numbers of layers, thickness, stencils, and other stuff. Do I need to specify any of those parameters?

If I simply put in the default order for $11.95, how many boards do I get? Looks like maybe ten (10).
Oct 30, 2017, 10:13 PM
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007trains's Avatar
Quote:
Originally Posted by FlyingW
All really cool Yak-54. A couple of questions about the boards. When I go to the dirtypcbs site, and add your board to the cart, a new page with a bunch of questions about numbers of layers, thickness, stencils, and other stuff. Do I need to specify any of those parameters?

If I simply put in the default order for $11.95, how many boards do I get? Looks like maybe ten (10).
You can change color and thickness of board without changing price (if you want to) but the defaults are usually fine and you get about 10 (could be 9 or 11) for that price
Oct 30, 2017, 10:14 PM
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007trains's Avatar
Quote:
Originally Posted by yak-54
Ok i have new designs that i have been using from june this year testing so far the have not missed a beat
first one is
http://dirtypcbs.com/store/designer/...e-banggood-zip
witch i made to fit in this case from banggood
https://www.banggood.com/Multi-Proto...l?rmmds=search

2 is an upgrade of the wombat with a built in regulator
http://dirtypcbs.com/store/designer/...lin-jr-rx1-zip

i have tested them out 4Km as that is as far as i can go with out crossing roads or houses
I really like the look of the TX module you've utilized the space really well for a through hole design. How does the TX board connect to the transmitter?
Oct 31, 2017, 12:23 AM
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Last edited by yak-54; Feb 22, 2018 at 02:52 AM.
Oct 31, 2017, 12:25 AM
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Last edited by yak-54; Feb 22, 2018 at 03:20 AM.
Oct 31, 2017, 12:45 AM
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Last edited by yak-54; Feb 22, 2018 at 02:52 AM.
Oct 31, 2017, 07:58 AM
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007trains's Avatar
Quote:
Originally Posted by yak-54
i use them as rx only as i have made tx bay one

http://dirtypcbs.com/store/designer/...-bay-v2-tx-zip

i have not tested it yet
I use the starfish boards the same way.

It'd be nice to have a through hole design that fits in a case like the one you've used that also uses the conventional plug.
Then we'd have a through hole design that is easily swap-able like the standard jr modules.
Perhaps if the pro-mini board on your design was raised a bit more the plug could sit underneath although routing the traces may be difficult
Oct 31, 2017, 08:18 AM
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007trains's Avatar
Quote:
Originally Posted by FlyingW
flipflap,

Yes a Pixracer. I did not add a protection resistor on the Tx line. I suppose you mean from the Orange module's serial Tx pin out to the TELEM1 serial port in on the Pixracer? Would I need this addition with a Spongeboard?

I'm very depressed right now. I was planning to fly with ULRS this week but now I am probably months away if I have to figure out how to build the hardware.

For the Spongeboard, do you or anyone else reading this know of a complete list of known working parts with links to a USA supplier? I see generic lists of parts and example links to French companies - they are probably great but I'll likely get it wrong if I try to buy stuff I do not understand well and and try to do it another language.

For example. see the screenshot below. I tried to look up the simplest part, a 1/4w 3.3k resistor. Digikey has thousands of them, but how do I narrow it down to the right ones?

Carbon film, carbon composite, metal film? etc. etc.

Thanks,

Paul
I'm in Australia so not the best person to suggest suppliers but as for resistor type metal film is best
Also if your buying resistors it may be worth buying a bulk pack as long as it's got all the sizes you need, then you'll have plenty spare for future projects
I think the spongeboard was designed for 1/4w but 1/8w would work fine (just a little smaller)
The spongeboard (as with all ULRS Mini modules) have a resistor on the tx line so it's protected
Also it'll take a while to receive the boards from dirtypcbs (won't take long to build) so if you've got some 2.4ghz gear laying around it may be worth using that to get your aircraft flying in the meantime
Oct 31, 2017, 08:34 AM
Registered User
Thread OP
Yes a resistor on the RX and TX lines would be perfect, it's included on the ULRS Mini boards, but not present on OrangeRX / Wolfbox.
Oct 31, 2017, 11:25 AM
Registered User
Quote:
Originally Posted by yak-54
Ok i have new designs that i have been using from june this year testing so far the have not missed a beat
first one is
http://dirtypcbs.com/store/designer/...e-banggood-zip
witch i made to fit in this case from banggood
https://www.banggood.com/Multi-Proto...l?rmmds=search

2 is an upgrade of the wombat with a built in regulator
http://dirtypcbs.com/store/designer/...lin-jr-rx1-zip

i have tested them out 4Km as that is as far as i can go with out crossing roads or houses
Awesome upgrade!!! i am really happy with the wombat boars...

I commented a mistake when I made the order, and I selected 2 units, if I know that each unit is approximately 10, so I received 22 pcb! I have sold many of them at cost, others I have given them to my colleagues in the club. I am very happy, I have made 3, and they work without problem. good contribution Yak-54
Oct 31, 2017, 12:57 PM
Registered User
Thread OP
Quote:
Originally Posted by yak-54
Ok i have new designs that i have been using from june this year testing so far the have not missed a beat
first one is
http://dirtypcbs.com/store/designer/...e-banggood-zip
witch i made to fit in this case from banggood
https://www.banggood.com/Multi-Proto...l?rmmds=search

2 is an upgrade of the wombat with a built in regulator
http://dirtypcbs.com/store/designer/...lin-jr-rx1-zip

i have tested them out 4Km as that is as far as i can go with out crossing roads or houses
Wow !

I'll add them to the site, so the second is a kind of Wombat V2 ? Can you post another photo ?

And the first one is a new design, do you have already an animal name for it ?
Oct 31, 2017, 09:19 PM
FPV Melbourne
yak-54's Avatar
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Last edited by yak-54; Feb 22, 2018 at 02:53 AM.


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