RCAP v.3 + WPS + EM406 working [Archive]

eladiomf

Mar 06, 2007, 03:51 PM

Hello

After I have finish of asembling and shipping all the kits of the AltHold unit (See: Altitude hold + Zlog mod3 working (http://www.rcgroups.com/forums/showthread.php?t=633795) ), I will start to describe the second part of my UAV plane.

Many of you already known or are using the RCAP autopilot or RCAP v.2.

RCAP2 autopilot troubleshooting and testing. (http://www.rcgroups.com/forums/showthread.php?t=484568)

I suppose that you also Known the WPS (Wait point secuencer), if not read first this:

Standalone Waypoint Sequencer (http://www.rcgroups.com/forums/showthread.php?t=515929)

Well, what I have done it's a re-design of the RCAP board, so that it can connect directely to WPS and GPS without adaptor cables. I have also update the RCAP software, so that it can work with EM406 and activate the return home feature of the WPS.

List of changes:

- Decrease size of board
- Direct connection to WPS and GPS without adaptor cables
- Now, it works with EM406 GPS
- RCAP v.3 can activate the Return home feature of the WPS. Using only one channel you can select Manual mode, Waitpoint route mode or Return home mode.
- No MAX232, so it only works with TTL levels GPS.
- You can use receiver power or use external power (Jumper selection)

The system it's working very well for me. In my plane I have RCAP v.3 connect to rudder, a Copilot connect to ailerons and elevator and AltHold connect to trothle.

I will say again here, Excuse my poor English, I'm from Spain :)

eladiomf

Mar 06, 2007, 04:15 PM

The plane that I have used to test all the system is a Twin Start 1 from Multiplex.

For stablility I'm using and old and out of production autopilot from Ripmax, the HAL2100. You can get a similar autopilot from Futaba (Futaba PAR1 or Futaba PAR2).

Or you can even get a better autopilot from FMA the Copilot, that sense temperature instead of luminosity.

eladiomf

Mar 06, 2007, 04:34 PM

This plane don't have too many space in the interior, so I had to organice all the components very well.

I left some pictures. Later I will make a more extensive description of the RCAP v.3

Eladio

workshop

Mar 06, 2007, 05:19 PM

Wow.... :cool:

BTW your English is better than some of the kids that go to my Son's school... he's 11. :eek:

Jeff

eladiomf

Mar 07, 2007, 03:42 PM

Description of RCAP v.3

The board have 2 potenciometers, one to set the gain, and one to set the max servo travel.

There is a female servo connector to connect the rudder servo and to males servo conector to connect to receiver's elevator channel and receiver aux channel (select mode of operation).

There is also to jumpers: one to select receiver or external power and another to reverse the operation of the rudder servo.

Trere is also a 3 pin conector for GPS (+, - and signal).

Modes of operation:

With an aux channel of the receiver you select Manual mode, Waypoint mode or Return home mode.

Manual mode: In this mode you control de rudder servo and all the sticks commands are passthrought to the servo. Led is always OFF. To select this mode aux channel must be <1.5 ms

Waypoint mode: In this mode plane will start to make all the waipoints that are in the WPS. You have no manual control of rudder. Led will make a quick flash. To select this mode aux channel must be >1.5 ms and <1.8 ms.

Return home mode: RCAPv.3 will activate the return home feature of the WPS and the plane will retur home. Home are the coordinates of the point that you were when turned ON the GPS. You have no manual control of rudder. Led will be half second ON and half second OFF. To select this mode aux channel must be >1.8 ms.

I'm very thanks to MX for creating the WPS. It's a unvaluable device. Only problem it's that WPS it's now out of production.

Total weight of GPS + WPS + RCAP v.3 is 35 gramos (little more than 1 Oz.)

If any of you have a WPS and would like to try RCAP v.3, tell me

Eladio

Mar 07, 2007, 03:45 PM

...I'm very thanks to MX for creating the WPS. It's a unvaluable device. Only problem it's that WPS it's now out of production...

If there's enough demand, I'll make 20 more.

MX

docphi

Mar 07, 2007, 04:02 PM

If there's enough demand, I'll make 20 more.

MX

I want one! Pretty please! :D

ios

Mar 07, 2007, 04:35 PM

Yeah,... I'd like one too :)

workshop

Mar 07, 2007, 06:07 PM

Build it and we will buy! :p

I'm good for one... Jeff

Wmacky

Mar 07, 2007, 07:20 PM

I'll Take one. Really!

Crash Pilot

Mar 08, 2007, 01:37 AM

I would like to try the RCAP V3

Thanks

Crash Pilot

CrashingDutchman

Mar 08, 2007, 04:59 AM

Very nice, but it would have been nicer if everything was on one board!

icebear

Mar 08, 2007, 05:10 AM

Eladio,

Yes please - I would also like to try the RCAP V3, I have a testbed ready in my Super Impress with the Co-pilot installed - and soon the Zlog+Alt Hold :)

PM me if you would consider selling me a unit since I alreday have the WPS from MX ...

Thanks,

/Icebear

HELModels

Mar 08, 2007, 01:41 PM

I have a 401 GPS, would this work?

Why didnt the 406 work initially?

Leaving out the max232 saves alot of space and weight and the WPS mates right up, very nice.

hfriling

Mar 08, 2007, 02:21 PM

I have been following the threads for some time now!

I would also like to get one of each. An RCAP V3, ALT-HOLD, and WPS.

Guys, start building, the input for the development has been great!

eladiomf

Mar 08, 2007, 02:40 PM

I have a 401 GPS, would this work?

Why didnt the 406 work initially?

Leaving out the max232 saves alot of space and weight and the WPS mates right up, very nice.

Hello

I have problems at the begining with EM406 because this GPS don't follow exactly the NMEA standar. I had to made some fix in the RCAP code to accept it.

I think that 401 would work OK too, with RCAP3, but I have not test.

I you can capture and send me some NMEA code of your GPS I will tell you if it's compatible.

Good about EM406 is that it only cost now 56$ at sparkfun.

Eladio

eladiomf

Mar 08, 2007, 02:53 PM

Hello

Lot of people have PM me about the RCAP v.3, so I have made 10 boards.

I have also the PIC's so I will start shipping on Monday.

I have calcule the cost of kits, and have make 3 options, so is easy for everyone:

1) Board, all the parts, connectors and jumper. WITHOUT servo cables.

2) Board, all the parts, connectors and jumper. WITH servo cables (2 males and 1 female).

3) Fully asembled unit, ready for use.

I have also calculate shipping cost (Certificate) to Worldwide: $

I have only prepare 10 beta units for now. In the Future if Beta testers are Happy with it, I can make more units.

Eladio

d_wheel

Mar 08, 2007, 03:44 PM

Hello

Lot of people have PM me about the RCAP v.3, so I have made 10 boards.

Eladio

I am VERY happy to see that you are keeping this great project going! Many of us have had a lot of fun and learned quite a bit from the building and use of these boards.

I am curious if you have had experience with a, I will call it, "bug" in the RCAP software? What I am referring to is that after the RCAP software has been activated, and then for some reason can no longer receive GPS data, it will lock up in the last rudder position and not allow the user to go back to manual control. I have never lost an airplane because of this but the potential for catastrophic failure does seem to exist.

Later;

D.W.

icebear

Mar 08, 2007, 03:49 PM

Great work Eladio!
Paypal sent.
/Icebear

Crash Pilot

Mar 09, 2007, 01:30 AM

Eladio

Do you know if the EM-411 will be compatable.

I understand it is very similar to the EM406.

Crash Pilot

eladiomf

Mar 09, 2007, 02:05 AM

I am curious if you have had experience with a, I will call it, "bug" in the RCAP software? What I am referring to is that after the RCAP software has been activated, and then for some reason can no longer receive GPS data, it will lock up in the last rudder position and not allow the user to go back to manual control.

Later;

D.W.

I have not detect this failure. Usually I fix 6 sattelites.

I will try next dat disconnect the GPS and see what happen.

Regards

Eladio

eladiomf

Mar 09, 2007, 02:07 AM

Eladio

Do you know if the EM-411 will be compatable.

I understand it is very similar to the EM406.

Crash Pilot

I have not tested with EM411, but it must work. Capture and send me some NMEA code and I will tell you.

Regards

Eladio

Crash Pilot

Mar 09, 2007, 07:02 PM

Eladio

I only just received the EM411 and have not had a chance to set up yet. I will wait till my order arrives from you and I will test then and report my progress.

Thanks for the reply

Crash Pilot

ALtitudeap

Mar 12, 2007, 04:24 PM

I to am interested in the RCAP3 board. Please and thank you

eladiomf

Mar 12, 2007, 05:07 PM

I to am interested in the RCAP3 board. Please and thank you

Hello

No more Beta units avalaible.

I have send you a PM.

Eladio

ios

Mar 12, 2007, 05:23 PM

If there's enough demand, I'll make 20 more.

MX

Hay MX ! :)

Will you be going ahead with the new units? I'm really interested in getting one of those babies !!,... also is it possible to put the required code straight into the zlog Mod3 ?

Mar 12, 2007, 05:50 PM

Hay MX ! :)

Will you be going ahead with the new units? I'm really interested in getting one of those babies !!,... also is it possible to put the required code straight into the zlog Mod3 ?

Yes, I'm making another batch of WPS-1. I got the parts today. I'll drop them off at the assembler tomorrow and find out then how quick they can turn it around.

What do you mean "put the required code straight into the zlog Mod3"? Do mean turn a ZLog into a WPS? Or add RCAP function to ZLog?

MX

hfriling

Mar 12, 2007, 07:51 PM

MX, Glad to hear that you got the parts today, as I am anxiously awaiting their completion so as to order one!

ios

Mar 12, 2007, 09:16 PM

Yes, I'm making another batch of WPS-1. I got the parts today. I'll drop them off at the assembler tomorrow and find out then how quick they can turn it around.

What do you mean "put the required code straight into the zlog Mod3"? Do mean turn a ZLog into a WPS? Or add RCAP function to ZLog?

MX

What I meant was, can someone change the "firmware" on the Zlog to make it function like a WPS? Zlog Mod3 looks almost like a WPS (including the pin-outs), so I'm guessing if it has the ability to "physically" connect to RCAP v3, while functioning as either a Zlog or a WPS, it might make it an even more interesting device.

I think its great that eadiomf has made the RCAP & ALTHold easily integrate with MX's Zlog & WPS. I see an oppertunity for you guys to integrate each of the two respective devices you have made into one (each) (hopefully by software modification only) and provide (1) two really useful integrated products for the AP anthusiasts/hobbiest ~ (2) two very interesting projects for those interested in electronics, and (3) some income for your great work and contribution.

Specifically on the second point ~ I would really like to see these projects become more Open Source, (1) so that those interested in eletronics/software are able to get involved and contribute to development and (2) so that there is information available which will allow people to continue making and developing these devices, even if you guys stop making them. I don't know what the solution is, but I fear that if you guys just disappeared, all the knowledge you have brought to this very interesting forum would be completely lost, and that would be truely regretable.

Great work guys, I look forward to seen how this discussion evolves. Keep up the great work :)

Mar 12, 2007, 10:31 PM

What I meant was, can someone change the "firmware" on the Zlog to make it function like a WPS? Zlog Mod3 looks almost like a WPS (including the pin-outs), so I'm guessing if it has the ability to "physically" connect to RCAP v3, while functioning as either a Zlog or a WPS, it might make it an even more interesting device.

WPS is a stripped down ZLog, so you could almost turn a ZLog into an expensive WPS, except that the processor on the WPS has a larger memory to handle the GPS strings and extra code to do the waypoint calculations.

...I see an oppertunity for you guys to integrate each of the two respective devices you have made into one ...

That's the intent of the WPS-2 design I've been working on: incorporates waypoint sequencing, barometric altimeter, RCAP capability and altitude hold, along with SD flash data logging.

Specifically on the second point ~ I would really like to see these projects become more Open Source,...

I posted links to source code in the WPS thread:

http://www.rcgroups.com/forums/showthread.php?t=515929

Posts #40 and #395.

MX

Mar 12, 2007, 11:05 PM

One thing I should note. I'm out of the RS232 - TTL converters, so if you don't have one of them or the USB adapters I sold with the MOD3 ZLogs, you'll need to find a RS232/USB - TTL adapter somewhere and wire it up to connect to the WPS. This will be necessary to program the waypoints into the WPS.

MX

Gary Mortimer

Mar 13, 2007, 02:34 PM

Now I think I too would like the combination of the three but I am more than a little lost here.

Please help a lurker newbie at all this.

The RCAP takes the GPS signal and interfaces with the rudder to make turns.

The FMA or some such device holds the wings level and using the elevator to approximate level.

The Alt Hold is accompished by the Zlog+alt hold which plugs into the RCAP and controls throttle based on a barometric reading, if your high less low more??

The WPS is the clever bit to take a simple GPS receiver and add in waypoint selection rather than using a garmin handheld or some other, main advantage being a drop in weight and better waypoint sequencing?

Perhaps somebody better PM the new guy rather than waste all you clever types time.

I must say this is a fantastic example of clever types from all over the world working on complex problems and solving them. Its brill, just wish I understood some of it.

Thankyou all for your work.

Oh how much would all of that together cost??

G

Wmacky

Mar 13, 2007, 07:44 PM

hfriling

Mar 13, 2007, 07:54 PM

Hey Wmacky, try this site:

http://www.compsys1.com/html/usb_rs232.html

I have one but haven't tried it yet!

Hal

hfriling

Mar 13, 2007, 07:56 PM

They also have DB9 to TTL too, make sure to get one that does the 3.3 volts as well as 5 volts!

Wmacky

Mar 13, 2007, 08:47 PM

How about this one?

http://www.acroname.com/robotics/parts/S13-SERIAL-INT-CONN.html

docphi

Mar 13, 2007, 09:23 PM

Here's a couple...

http://www.pololu.com/products/pololu/0391/

askman

Mar 14, 2007, 02:43 AM

I believe CC pheonix link is probably usb to ttl. too bad we don't have a pinout for it. (I guess I can look up the chip's datasheet)

Mar 14, 2007, 03:00 AM

I believe CC pheonix link is probably usb to ttl. too bad we don't have a pinout for it. (I guess I can look up the chip's datasheet)

Probably requires a special driver though.

Dropped off the WPS parts today. The lady that does the assembly told me two weeks :(. I asked for Monday at the latest and she looked like she was passing a kidney stone, but her boss assured me he would see what they could do. I got him into flying RC also, so he tries to help me out. We'll see.

MX

shanghai_fool

Mar 14, 2007, 05:46 PM

Here also is a source for adapters.
http://www.ftdichip.com/Products/EvaluationKits/TTL-232R.htm
I have the TTL-343R USB and it works great.

Donald

workshop

Mar 16, 2007, 05:03 PM

IMO... :rolleyes:

MX and Eladio should work together and keep the code to themselves as they rely on us to provide feedback, testing and income.

One only needs to look to the indecipherable mess that is the Paparazzi project as a fine argument against an open source UAV.

I’m not knocking the hard work that has gone into the Paparazzi project nor the intelligence or abilities of the people that documented the project. I just don’t think we need another one.

Jeff

Kalyptos

Mar 16, 2007, 11:57 PM

Hi,

Interested in getting hold of RCAP/WPS/ALT-HOLD ...

Well let me rephrase that in first principles - Interested in setting an RC Model off, to fly some waypoints, (optional - press a button/action at a waypoint) and come back, want it to fly at configureable altitudes. This seems the thread to be .

Could I ask for a PM on price/availability to Brisbane, Australia.

Thanks in Advance.

I understand that this is still a development/beta item?

Kalyptos

Mar 17, 2007, 12:13 AM

Kalyptos

Mar 17, 2007, 12:45 AM

Edited Duplicate Post from above

Mar 17, 2007, 03:08 AM

The WPS boards were ready today, so I have them now:

http://store.hexsys.biz/cubecart/index.php?act=viewProd&productId=15

I've haven't had a chance to program them yet, so I'll do that this weekend.

MX

wallaguest1

Mar 17, 2007, 12:27 PM

i just understand 25% of what people is talking about here,

i just wanna ask something: it's possible to program some of the "things (boards)" available actualy in order to stop motor's when the plane reach 150 meters, and don't run them until plane reach's 100 meters, in order to extend battery life ? that could be a great thing with gliders, bcos they can almost move itself's lot of kilometers just using thermal winds,

2º) any way to make a picture with a small digital camera when a waypoint become reach ?

Wmacky

Mar 17, 2007, 10:15 PM

I just ordered mine. A big thanks to mx for this second opportunity, and still at a very nice price. Everybody that has been waiting for it's return jump in, and you'll be ready for batch 2 of the RCAP3's!

Gary Mortimer

Mar 18, 2007, 04:33 AM

Just made my first paypal, transaction to aquire the setup.

In a lot of ways gulp and lots other hooray!!

Standby for reports of flights over South Africa and the Serengeti

Now if only you clever types could get it to climb at different waypoints.

I will insert some google earth images now to show you why.

(Well I've attached some images, another first in this space not sure if it has worked)

The private game reserve which belongs to a friend of mine lies in two valleys separated by a 1500' spur. The base altitude of the reserve is around 5000' with the Drakensberg rising behind it to 10,000'

On the spur, Mount Lebanon there is a vulture breeding area.

What we would like to be able to do is fly the fence, its 20km long and check it for breaks. (looking at video footage afterwards is what I was thinking transmitting images back might be too hard in the terrain)

So the ability to climb up over the ridge would be good. ie when climbing to a differenrt altitude at a different waypoint.

The next project if this one works is keeping track of lion prides, at the moment its very difficult to get the physical driving on the ground done in the Masai Mara to keep up with each group.

Main reason for that being a north south river with only two crossing points, one in the north and one in the south, long drive to either. Sat on the escarpment to the west you can see the entire reserve.

Big Hairy Audacious Goal I know but what the heck.

If it was not so windy I'd go out and fly my plane in excitement :) :cool:

G

Tom Harper

Mar 18, 2007, 08:33 AM

Gary,

Great project!

What kind of aircraft are you using?

One of these days maybe we can get a group dedicated to wildlife monitoring.

Gary Mortimer

Mar 18, 2007, 11:55 AM

Well I hope to use an electric senior Telemaster or some such larger aircraft.

Not sure if it will have the duration.

We have plenty of missions for a UAV just no experience of them.

I do make a ham fisted job of flying RC, mostly gliders and recently powered.

The powered flying started because of this very task, always found them too noisey ;-)

I have asked around a few of my friends with big farms and private game reserves and sadly the most requested application is thermal imaging at night, looking for poachers.

A friend of mine in the US is looking at thermal imaging and shape recognition for aerial game counts, day and night!!

Anyhow very early days, lets see if I can get an aircraft to fly around the polo field that we fly from first!!

I would have thought there was a wildlife project on everybodys backdoor that would need help one way or another.

Cheers

G

Tom Harper

Mar 18, 2007, 12:27 PM

I think poacher patrol is a good application.

I want to do some work with low powered GPS collars on Big Horn Sheep. The model flies over at a given time window and the GPS collars report position. Also, some ranch managers collar the mountain lions. It would be interesting to track them by model airplane.

Agreed everybody has a local archeological, agricultural or wildlife opportunity.

Tom

workshop

Mar 18, 2007, 12:36 PM

One could take the waypoint arrival pin of a Nav unit (PicoPilot has one, so might RCAP) and connected it to a microcontroller (BasicStamp, AVR, PIC) that will send signals to Eladio's beta AltHold module's altitude channel.

That way the microcontroller could read waypoints arrivals (or departures) and set a new altitude for the leg to the new waypoint. The BasicStamp code would be almost childish.

Jeff

Gary Mortimer

Mar 18, 2007, 04:46 PM

Funnily enough Tom.

There are some collars out there that send the animal positions via txt message, I'm sure you are aware of that.

The snag is the animals have to be in range of a cellphone tower, for that to happen.

One of our aims is to try and work around that.

It would also be nice to have an aircraft listen for the more conventional collars and then track until it finds the strongest signal, giving a rough position to be followed up on the ground.

I have had to fly Hyena researchers in a balloon (my day job but normally with tourists) on several occasions to get them some altitude to look for lost animals.

I'll pm you and maybe we could start a thread um somewhere less intrusive for the others!!

As to childish BasicStamp code, it would still be beyond me!! I'm just a balloon driver.

G

Tom Harper

Mar 18, 2007, 05:50 PM

Maybe I can contribute a coded part for a special application.

workshop

Mar 18, 2007, 06:48 PM

Keep it here Gary; the cats don't mind. Not necessarily this thread but the UAV forum for sure. You've got a fascinating application and the right recipe for some interesting science (i.e. no FAA). As Tom indicated, he’ll lend a hand with coding as will I. MX and Eladio are working on beta boards that will provide a hardware / software basis. Kd7ost will chime in any minute I’m sure; he’s got one of the best skill sets on this forum. My passport is up to date but you’ll probably be able to manage the project yourself with help from the group.

Re: Telemaster Threads

http://www.rcgroups.com/forums/showthread.php?t=511550

http://www.rcgroups.com/forums/showthread.php?t=631757

Jeff

Jeff W. Parisse
Director, kVA Effects
www.teslacoil.com

(nothin’ to do with UAVs… FAA)

Gary Mortimer

Mar 19, 2007, 02:44 AM

Thanks for the encouragement all.

I think the sense of group about this group is what made me take the plunge.

On the altitude subject what is the feeling about this http://www.dgadv.com/aerotracker/

I'm keeping my head down re the FAA thing, there really are very few people playing with this idea in Africa so its not seen much attention.

Trouble is when the FAA set something down, we tend to follow ;-(

So once you types have cracked the altitude thing!!!! Just add in the camera firing method and I'm sure you have built what every hobbiest wants.

Oh what about Blue Tooth GPS?? They are getting very cheap.

As ever well done,

G

hfriling

Mar 19, 2007, 11:13 AM

Hey guys, don't forget about Mr.RC-CAM he as had a lot of input in the past and has video integration under control.

workshop

Mar 19, 2007, 11:23 AM

Thomas Black... Yeah, and he's got a great user's group forum too. I use his Vizion OSD; it's great for electric fliers. He's very open to helping out too.

Great guy... I didn't mean to leave him off the list!

Jeff

Mar 19, 2007, 04:31 PM

Ok, all the WPS boards have gone out, so hopefully most of you will have them in a couple days, more if you're outside the US.

I'll be out of town for about 10 days, starting Wednesday, with some limited access to the internet, so get them hooked up and let us know how things work. I'll check in when I can.

MX

Gary Mortimer

Mar 20, 2007, 01:32 AM

So what chance of getting 3D waypoints Eladio??

Cheers

G

eladiomf

Mar 20, 2007, 06:25 AM

So what chance of getting 3D waypoints Eladio??

Cheers

G

Actually waypoint navigation is's done by the WPS's board. So, getting 3D waypoints, would only be posible if MX can modificate the WPS firmware and and the PC aplication software.

Only option I see is that the WPS write the altitude of the Waypoint in some unused GPRMB field, for instance the cross-track error field. I can read this field with RCAP3 and send the information to AltHold. AltHold will compare the actual altitude with the altitude of the next waypoint and would start to make the correction.

Regards

Eladio

d_wheel

Mar 20, 2007, 08:02 AM

eladiomf

Mar 20, 2007, 09:08 AM

The RCAP v.3 board looks good Eladiomf. I'm in the process of connecting a EM-411 and will let you know how it works out. While on this subject, where can I find a connector for the 3 pin socket you provided for the GPS receiver connection? I can't seem to find anything that fits.

Later;

D.W.

The connector it's a standar 0.1 pitch male conector. I usually buy them in 64 pins strips. If you can not find one, you can use even a IC socket. You must cut it and solder the wires in the holes.

I was going to include a free male connector with each unit, but I forgot.

I will try to make a little web document explaining functions and pinouts. It will be ready in a couple of days.

Will put a link here

Eladio

d_wheel

Mar 20, 2007, 03:08 PM

Thanks Eladio. I'm having trouble finding enough channels to use for the test flights. I am using a DX7, and here's how it is set up now. Elevator going through the altitude hold. That uses the elevator channel; the 3 way switch for manual, automatic, and preset; and aux1 to set the altitude in preset mode. That's 3 channels. I am using aileron (connected to the rudder on this airplane) and throttle, that's 5 channels total. I don't have another 3 way switch to use for RCAP, so have it on the rudder stick. I use rudder trim and an offset mix to get the pulse widths I need for RCAP control. That's 6 channels. Aux 2 is set up to activate the copilot. That's all 7 channels. I was just wondering how you have yours set up.

Later;

D.W.

workshop

Mar 20, 2007, 03:45 PM

JR 7 Channel SPCM R/X

I saved a channel by leaving the Co-Pilot disconnected (always on).

1 Throttle
2 Ailerons (Co-Pilot always on)
3 Elevator (Co-Pilot always on)
4 Rudder
5 AltHold Enable (2 Position - Off, 40% trim = auto, 100% trim = preset)
6 RCAP (3 position)
7 AltHold Preset Altitude Select (proportional)

Jeff

eladiomf

Mar 20, 2007, 06:48 PM

Futaba 9Zap radio. Hyperion 8 Channel receiver.

Channel 1 Right aileron
Channel 2 Elevator.
Channel 3 Right and Left trothle
Channel 4 Rudder
Channel 5 AltHold OFF/Automatic/Preset 3 positions switch
Channel 6 RCAP3 OFF/Automatic/Home 3 positions switch
Channel 7 Left aileron
Channel 8 AltHold Preset mode. Dial Channel

Ripmax HAL2100 Autopilot always ON.

d_wheel

Mar 20, 2007, 07:42 PM

Tom Harper

Mar 20, 2007, 07:54 PM

The only problem I've had with the EM-406 is that the input has to be held high. If it gets noise on the input it interprets it as data and outputs a CRC Error message instead of the NMEA sentence.

eladiomf

Mar 20, 2007, 08:34 PM

Thanks again. I just pulled the AR7000 out of the airplane and installed an R5014. No problems with enough channels on the 14MZ.

Next problem. I have a EM-411 wired up, but so far the WPS/RCAP don't seem to recognize it. The led on the GPS comes on and starts flashing, so it is receiving data but evidently it's output is not set correctly. Did you have to change any default settings on the EM-406? Information on the 411 does not say what it defaults to.

I have been able to get the RCAP board to go into waypoint mode (quick flashing) but so far it will not go into the return to launch mode. The led is off at either up or down on the 3 way switch, and flashes quickly in the center position. The WPS "nav lights" do nothing at all.

Later;

D.W.

For first test forget about RCAP3. Use only the GPS and the WPS. Set 2 or 3 waypoints and go for a walking arount the waypoints. Pay atention to the leds. It have 3 leds, one for left turn, another for right turn and a center led that it's always flashing and go ON when you have done the waypoint.

If you can capture some NMEA data I will tell you if your GPS in compatible.

Eladio

shanghai_fool

Mar 20, 2007, 09:01 PM

If you can hook up the 411 to your pc first, that will tell you if the default baud rate is still 4800. There are several mini-gps applications that can look at the output. PM if you need them. It basically has 2 modes, NEMA and SIRF
proprietary.

HELModels

Mar 21, 2007, 03:22 AM

Eladio, while I wait for my RCAP 3 to arrive I managed to capture some GPS from my 401. I am assuming all the 0's are because I didnt have any SV's in view. Does the format look compatible with v.3? $GPRMB is missing because I did not hook up the WPS.

$GPRMC,001349.949,V,0000.0000,N,00000.0000,E,,,100 803,,*15
$GPGGA,001350.949,0000.0000,N,00000.0000,E,0,00,50 .0,0.0,M,0.0,M,0.0,0000*75
$GPGSA,A,1,,,,,,,,,,,,,50.0,50.0,50.0*05
$GPRMC,001350.949,V,0000.0000,N,00000.0000,E,,,100 803,,*1D
$GPGGA,001351.949,0000.0000,N,00000.0000,E,0,00,50 .0,0.0,M,0.0,M,0.0,0000*74
$GPGSA,A,1,,,,,,,,,,,,,50.0,50.0,50.0*05
$GPRMC,001351.949,V,0000.0000,N,00000.0000,E,,,100 803,,*1C
$GPGGA,001352.949,0000.0000,N,00000.0000,E,0,00,50 .0,0.0,M,0.0,M,0.0,0000*77
$GPGSA,A,1,,,,,,,,,,,,,50.0,50.0,50.0*05
$GPRMC,001352.949,V,0000.0000,N,00000.0000,E,,,100 803,,*1F
$GPGGA,001353.948,0000.0000,N,00000.0000,E,0,00,50 .0,0.0,M,0.0,M,0.0,0000*77
$GPGSA,A,1,,,,,,,,,,,,,50.0,50.0,50.0*05
$GPGSV,1,1,01,30,00,000,00*4B

d_wheel

Mar 21, 2007, 11:41 AM

For first test forget about RCAP3. Use only the GPS and the WPS. Set 2 or 3 waypoints and go for a walking arount the waypoints. Pay atention to the leds.

Eladio

Looking at the circuit, it appears that connecting the GPS receiver to the WPS through the RCAP3 would be the same as connecting the GPS directly to the WPS. That is why I went ahead and did it that way. Am I missing something?

I am familiar with the lights on the WPS and will do as you suggested if it is really necessary to remove the RCAP from the circuit.

I will dig out my TTL/RS232 converter and capture some data for you. I was just hoping that this step would not be necessary.

Later;

D.W.

eladiomf

Mar 21, 2007, 12:53 PM

Looking at the circuit, it appears that connecting the GPS receiver to the WPS through the RCAP3 would be the same as connecting the GPS directly to the WPS. That is why I went ahead and did it that way. Am I missing something?

I am familiar with the lights on the WPS and will do as you suggested if it is really necessary to remove the RCAP from the circuit.

I will dig out my TTL/RS232 converter and capture some data for you. I was just hoping that this step would not be necessary.

Later;

D.W.

Yes, you can leave RCAP3 connected. What I wanted to say is that forget about servo movements and check before that the leds in the WPS are working OK.

Regards

Eladio

d_wheel

Mar 21, 2007, 01:56 PM

Yes, you can leave RCAP3 connected. What I wanted to say is that forget about servo movements and check before that the leds in the WPS are working OK.

Regards

Eladio

I understand. So far the led's on my WPS are not working. I will capture the GPS data and we can go from there.

Later;

D.W.

eladiomf

Mar 21, 2007, 02:55 PM

I understand. So far the led's on my WPS are not working. I will capture the GPS data and we can go from there.

Later;

D.W.

If leds of WPS are not working, WPS is not receiving good GPS signal.

Are you sure you connect the TX, positive and ground wires correctly?

Eladio

d_wheel

Mar 21, 2007, 03:26 PM

If leds of WPS are not working, WPS is not receiving good GPS signal.

Are you sure you connect the TX, positive and ground wires correctly?

Eladio

Yes I am sure. The EM-411 has a status led that comes on steady when power is applied. Once enough satellites are acquired to get a good fix, it starts blinking at a 1hz rate. Mine is doing this but the WPS is doing nothing at all after the led's flash when first powering up. I will make sure the baud rate and data are correct after getting home from work today.

Later;

D.W.

Mar 21, 2007, 07:12 PM

Yes I am sure. The EM-411 has a status led that comes on steady when power is applied. Once enough satellites are acquired to get a good fix, it starts blinking at a 1hz rate. Mine is doing this but the WPS is doing nothing at all after the led's flash when first powering up. I will make sure the baud rate and data are correct after getting home from work today.

Later;

D.W.

Double check that the GPS Tx line goes to the WPS Rx line, and that the baud rates are correct. WPS should flicker the center LED when it starts receiving GPS sentences.

MX

d_wheel

Mar 21, 2007, 08:24 PM

If leds of WPS are not working, WPS is not receiving good GPS signal.

Are you sure you connect the TX, positive and ground wires correctly?

Eladio

Found the problem! It appears that the data sheet I have has the tx and rx lines reversed. After an hour or so of troubleshooting, I pulled out my o'scope. There was absolutely nothing on pin 4 of the GPS (which the data sheet says is the tx line) except a positive voltage. Out of curiosity, I connected the scope probe to line 3 and it was pulsing away. Connected pin 3 to the wps and everything started working.

Just got in from a quick walk around and it all works as expected. Next step, install it in the test aircraft and wait for a day when the wind is less than 15mph. All predictions say that will be sunday or monday. I guess that gives me time to get everything ship shape without having to rush.

For those interested, the EM-411 pinout is as follows. With the antenna up, pin 1 is on the right. Pins 1 is ground. Pin 2 is vin - 4.5 to 6.5 volts. Pin 3 is tx - data out to the WPS/RCAP. Pin 4 is rx - receive. Pin 5 is ground (the data sheet says to connect all grounds together). Pin 6 is a 1 pps pulse.

Later;

D.W.

eladiomf

Mar 22, 2007, 04:42 PM

I have upload a little document with the instrucctions and settings of the RCAP3 unit.

http://alai.h3m.com/~s0350672/rcap3.htm

Waiting to hear your fly tests of the unit.

Eladio

workshop

Mar 22, 2007, 06:15 PM

Any word on the second batch?...

Jeff

eladiomf

Mar 22, 2007, 06:53 PM

Any word on the second batch?...

Jeff

Hi Jeff

Second batch already finish. Will ship your unit on Saturday.

Eladio

Wmacky

Mar 22, 2007, 07:11 PM

Got both the RCAP3 and WPS in the mail today. Time to experiment! I just need to find that connector for the Gyro. I guess Radioshack isn't going to have it?

docphi

Mar 22, 2007, 10:03 PM

Hi Jeff

Second batch already finish. Will ship your unit on Saturday.

Eladio

Any chance of purchasing one? Or are they all spoken for?

Aeroflot

Mar 23, 2007, 01:37 AM

Hi, nice work, been reading this group for for quite some time, as not to ask too many stupid questions, was wondering if any one has source of good UAV airframe RTF ARF if not, is there any interest in something like this (bigger 2m with ailerons) Next Q. Where can I purchase an RCAPv3?

icebear

Mar 23, 2007, 04:04 AM

RCAP3's instructions and settings
--------------------------------------------------------------------------------
I have upload a little document with the instrucctions and settings of the RCAP3 unit.
http://alai.h3m.com/~s0350672/rcap3.htm
Waiting to hear your fly tests of the unit.
Eladio

Thanks Eladio! Got the RCAP v3 this week and I have installed it in my Super Impress together with the AltHold! Getting crammed with electronics in there :)

Weather has been poor for a week now, but it's getting better for the weekend :)

Will report back as soon as I can!

/Icebear

Gary Mortimer

Mar 23, 2007, 04:59 AM

eladiomf

Mar 23, 2007, 06:03 AM

Any chance of purchasing one? Or are they all spoken for?

Actually all the units of the second bach (second bach of PCB's) are already spoken and pay.

If there is enought interest and the beta reports are good I can make a new order of PIC's (I have to order from digikey, imposible to get local) and go for the commercial version.

For now, I have place a waiting list. So people interesting PM me.

In the commercial version price of the kits would almost be the same. People that will want the full asembled units would have to pay the real price of the asembling.

Eladio

eladiomf

Mar 23, 2007, 06:09 AM

Ok heres my first dumb question...

Looking at http://alai.h3m.com/~s0350672/rcap3.htm and having noted Jeffs comment about running out of channels.

I was wondering if it would make sense to fire all the electronics up using a spare 3 channel box I have lying around.

I am assuming that a complete control deflection in one of the channels would arm the systems??

Please be gentle with me if I have just made a howling error.

Otherwise I'll have to buy a new box, still a good excuse to get a Spektrum or Freqency spread Futaba.

G

Yes you can use a second Tx and receiver to fire all the aux channel from RCAP and AltHold. But this second system don't have failsafe you can't no let the plane go after radio range.

If you want the plane to fly without receiving radio signal your system must have failsafe.

Eladio

d_wheel

Mar 23, 2007, 08:45 AM

is there any interest in something like this (bigger 2m with ailerons)

YES!! That is exactly the kind of airframe I have been wishing for! More information please.

Later;

D.W.

d_wheel

Mar 23, 2007, 08:59 AM

The 15 mph winds and occasional light sprinkle of rain were not enough to prevent me from testing the RCAP v3, yesterday evening. The airplane was getting tossed around quite a bit by the gusts, but the bottom line is that the autopilot works fine. After a short first flight I had to land and make two adjustments to the system. The second flight was terminated because of darkness, but after initially climbing to about 200 feet, I switched everything on and did not touch the transmitter for 15 minutes while just watching the airplane continuously follow the route I had programmed in.

I will give more details when time allows.

Later;

D.W.

eladiomf

Mar 23, 2007, 09:11 AM

d_wheel

Mar 23, 2007, 01:09 PM

Hi Dale

Nice to hear is working well for you.

What airplane, and wing leveler are you using?

Also, what are your settings of Gain and Travel?

Eladio

Our weather forecasts at the beginning of the week were saying windy and chances of rain until saturday. On tuesday, they pushed it back to sunday. Wednesday, they again pushed it back to monday. That was when I pulled the unit out of my Easystar and isntalled it in my Giant Stik in place of the older RCAP 1.1. The Stik handles wind with out much problem (16 pounds and a 35cc gasoline engine). It already had FMS copilot set up on ailerons/elevator and Picopilot altitude hold on elevator, so it took less than an hour to replace the RCAP and GPS receiver.

Sensitivity is set at 50% and servo throw at 25%. The first flight had them both set to about 10% and the turns took forever to complete. At 50/25 it gives a good turn rate with out over controlling. It was difficult to tell if it was hunting from left to right because the wind was making it bounce around quite a bit.

The EM-411 GPS receiver is fantastic. Since the initial turn on it has always taken 3 minutes or less for it to lock on, even inside my house! My older units (Garmin) would sometimes take up to 10 minutes outside and would not lock on at all inside. At the flying field it was taking about 5 to 10 seconds each time! The small size is also great.

Later;

D.W.

Aeroflot

Mar 23, 2007, 08:37 PM

d_wheel

Mar 23, 2007, 10:08 PM

I have a friend that sources all types of electronic and plastic parts from china, I'II give him a sample and see if It can be scaled up. The existing one is only 1m to small to carry anything useful. The cost is what I like it's only $35 complete airframe!

If the wing separates into 2 pieces, I could even go for a 2.5 or 3 meter version. The pusher configuration lends itself nicely to aerial photography. No propeller in the way.

I suppose we really need to take this to another thread, however.

To purchase the RCAP 3, you need to send a private email to eladiomf.

Later;

D.W.

hfriling

Mar 23, 2007, 10:29 PM

If the wing separates into 2 pieces, I could even go for a 2.5 or 3 meter version. The pusher configuration lends itself nicely to aerial photography. No propeller in the way.

I suppose we really need to take this to another thread, however.

To purchase the RCAP 3, you need to send a private email to eladiomf.

Later;

D.W.

Just make sure you let us know where you're taking it!

Hal :D

Wmacky

Mar 24, 2007, 12:04 AM

Rats! I sat around and didn't order a EM-406 this week, but just went to Sparkfun to do the deed. It's out of stock! Can I get one for the same price elsewhere? I hope it's not being discontinued.

Crash Pilot

Mar 24, 2007, 07:43 AM

Not Fair

Ordered my Rcap V3 and Alititude hold but because i live further away (Australia) have to wait longer than everyone else.

Everyone that is posting their test results keep up the good work.

As soon as I receive my gear I will throw it in my magpie ap and post my results.

Crash Pilot

Gary Mortimer

Mar 24, 2007, 10:51 PM

Well it will take longer to build for those of us in the Southern Hemisphere because we fly upside down ;-)

G

workshop

Mar 25, 2007, 05:09 PM

I have the WPS breadboarded up to my PC and I can’t seem to get Waypoint.exe to talk to it. The COM1 port works because I can move the pins of the GPS over to it and see the data scroll on the PC. I’ve reversed TX and RX and I’ve tried it with and without a MAX232 between the WPS and the serial port.

The unit gives me a cycle of LEDS and then a steady green so I believe that it is powered correctly and booting up.

I’m probably missing something simple/silly but I’m running low on ideas… What am I doing wrong (other than grammatically)? :rolleyes:

Jeff