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Feb 21, 2019, 11:03 AM
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Tank, That's good to hear, it's been a long time since someone wanted to do this just because, and had some of the knowledge and skills to get it done. I don't know if this is the largest thread on this forum, but if not it is up there. Crossup, Cybermike and I were all active on this project and can probably help you out if you get stuck. Please post your progress here, I'll keep an eye out. Dave
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Feb 21, 2019, 05:20 PM
Senior to who? Member
crossup's Avatar
Its really great to hearwhat you say after what we come to see the last several years. Seems most people dont get whats involved and want to do it for the wrong reasons.
Then you come along with the right idea, we do this because we want to, not because it makes sense. I will be interested to see how it goes and if you can add any new ideas to the mix.

Quote:
Originally Posted by Tankogen
Good to know thanks. I read a lot and got to this. And then read a lot. And then was told to read more. I have all hardware and or skills for soldering and programming and making my own pcb and everything else. Thanks guys I'll be making my own for fun and I r and rf and will purchase also !
Feb 22, 2019, 07:37 AM
Aedificem ergo sum
cybermike's Avatar
You're making me want to pull out the old 2-channel IR RX I made in, oh, 2004 that used a TV remote as the Tx It worked but the range was terrible, and chasing the plane around the Lakehurst hangar with a TV remote was pretty comical. I started to make an IR booster add on for the TV remote, but got distracted and never finished...
Feb 22, 2019, 08:26 AM
Registered User
Quote:
Originally Posted by cybermike
You're making me want to pull out the old 2-channel IR RX I made in, oh, 2004 that used a TV remote as the Tx It worked but the range was terrible, and chasing the plane around the Lakehurst hangar with a TV remote was pretty comical. I started to make an IR booster add on for the TV remote, but got distracted and never finished...
I built an add on module that plugged into the trainer port of a simple 4 channel Futaba TX. As I remember it was designed by Dave DeWit, but may have had it's origins in a Koichi design. I think it had a total of about 20 LED's and I never had any range issues indoors, then again I didn't have a blimp hanger at my disposal
Feb 22, 2019, 02:22 PM
*******
coriolan's Avatar
Quote:
Originally Posted by d wulff
I built an add on module that plugged into the trainer port of a simple 4 channel Futaba TX. As I remember it was designed by Dave DeWit, but may have had it's origins in a Koichi design. I think it had a total of about 20 LED's and I never had any range issues indoors, then again I didn't have a blimp hanger at my disposal
Didel used to have IR modules usable with a regular Tx, doesn't show anymore on their site!
https://www.didel.com/en/
https://www.didel.com/News.html
But they still have discrete components:
https://www.didel.com/en/product-cat...santscapteurs/
Jun 15, 2019, 07:10 PM
First joined Sep 2001

Got asked about DIY-IR the following is my response.


Quote:
Originally Posted by crossup
I have the original Koichi IR setup and parts and Chinese units as well as RC actuator gear, so you can take this advice as gospel.
mmmmmmmmmmm Gospel? not quite. Sorry crossup but some of that is simply not true.


Quote:
Originally Posted by crossup
C)If you are merely interested in the lightest RC gear, DONT bother with IR. A Deltang receiver is as light as anything you can build and lighter than anything you can buy.
Is it?
Lightest DT actuator rx (Rx46) made and no longer available was 0.15 - 0.16 gram and was for 1 x actuator. Current lightest DT actuator rx is 0.28g (servo rx is 0.21). Koichi's IRX262 is 0.16g. IR receivers have been built down to 0.013g (yes only 13mg), pictured below is a simple one I made years ago and it is 0.125g, no lightened components, on a single sided pcb and includes sensor (I have made lighter).

Quote:
Originally Posted by crossup
Also available are several options in non DSM systems from Micro Flyer Radio some of which are lighter than IR gear by a lot.
By a lot you say?
Weights as above, IR receivers down to 0.013g. The 900mHz receivers @ 0.100g are a "little" lighter than commercially available IR rx, are not cheap, and if you go down that road you also need a tx or a module, again not so cheap. Diy IR can be much much lighter, and both diy and commercial IR cheaper.

Quote:
Originally Posted by crossup
If you go DIY, it will cost you at a minimum 5x to 10x the cost of a Deltang Rx or even more if you pooch up and kill your transmitter.
DT receivers arn't exactly cheap either. If you go about diy the "right" way it can be relatively cheap. You can also build or buy a stand alone tx. All less than 10x a dt rx.

A couple more notes. Nobody uses a tv remote and diy done properly has very good range. Koichi's home page and e-shop are still active, links below, and all info is still available to diy if you look. I still have a small quantity of pcb somewhere
"if" I can find them.

That said, the satisfaction from building you own IR gear is big, so if that's what floats your boat or you are chasing low weights you cannot beat DIY IR.

Koichi is still selling IR tx and rx.
Koichis homepage https://blog.goo.ne.jp/toko0131
PIC/AVR http://www7b.biglobe.ne.jp/~toko0131/pic/index.html
e-shop http://indoor-airplane-world.com/
Last edited by BlRDMAN; Jun 15, 2019 at 07:38 PM. Reason: forgot to add pic
Jun 16, 2019, 01:12 AM
A.K.A sir Crashalot
methuso's Avatar
if you want light you can select the lightest pics and grind them down. then skip the pcb all together and stick components to the pic. And dont hang 1gram acts on 10awg cables. I did it in 06 i think. got pretty light from what i remember. (one of my first electronics projects, how hard can it be) I do remember feelinf 0.1mm lintzwire being overkill.
never flue it naturally sins new projects takes over (doctors gave me pappers on it (licence)).
but i had rudder and motor control from 7-10m away. just not good enough at depron at that time.

and i bought 2 sets of unassembled dtrxs to try this. just too much fun stuff to try and not enough energy.

Just came home from a second brain/eye tumour removal (unsuccessful) but waking this thread up, chears me up sooo much.


my 3cents it DOIIIITTTT....
Jun 16, 2019, 03:58 AM
First joined Sep 2001
Yep, dead bud style, a few of us went down that road. You can also grind down the sensors, That's what it takes to break records.
Jun 16, 2019, 04:06 AM
First joined Sep 2001
oops, dead bug, not dead bud

having trouble logging into some pages
Aug 21, 2020, 05:56 PM
Registered User
billystiltner's Avatar
The missing page.
https://web.archive.org/web/20090806...ay/diy-ir.html

files
https://web.archive.org/web/20091027...1/infraredray/
Last edited by billystiltner; Aug 21, 2020 at 06:04 PM.
Aug 21, 2020, 06:14 PM
Registered User
billystiltner's Avatar
The missing page for IRXA261.

https://web.archive.org/web/20091027...1/IRXA261.html

The irxa261f.hex is missing from that backup.
You can get it from Koichi's page.
http://www7b.biglobe.ne.jp/~toko0131...071/index.html
Last edited by billystiltner; Aug 22, 2020 at 03:18 PM.


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