Date   

Re: An update to antuino

Ashhar Farhan
 

Well, it is an early release i usually take a few weks between me and raj to sort out thr bugs.
Im this case, i was making incremental tweaks for sometime and then i realized that the software was stable enough for me to not bother with making more changes. At that point, i cleaned it up, added comments and pushed it on github.
What being foolhardy means is that of it is not stable enough for your use, you may want to go back to the 2.1 version and you should be confident of loading that back again.
73, f


On Fri 19 Jun, 2020, 8:17 PM Ted via groups.io, <k3rta=yahoo.com@groups.io> wrote:
Hey, just for clarity, what sort of circumstance should I expect with this upgrade, that makes it suitable for the "foolhardy"?  Certainly, the improvements listed would have a lot of appeal and I'm going to want to try this.  

Thanks.


Re: Nextion breakout ribbon cable for v6 #v6 #nextion

rpremo
 

From the description supplied in support case the digital pins via the ribbon cable are not compatible with serial communication, as such are not wired to each other in anyway since the other side with 4 pins is a serial connection.

 

Sent from Mail for Windows 10

 

From: W9THC CriP Sparks
Sent: Friday, June 19, 2020 5:46 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Nextion breakout ribbon cable for v6 #nextion #v6

 

Why not just use your ohm meter and prob the connector while touching the pin on other side Id imagine you would get continuity on the corresponding pins??

 


Re: Nextion breakout ribbon cable for v6 #v6 #nextion

W9THC CriP Sparks
 

Why not just use your ohm meter and prob the connector while touching the pin on other side Id imagine you would get continuity on the corresponding pins??


Re: Nextion breakout ribbon cable for v6 #v6 #nextion

rpremo
 

Reply to Nextion ticket....

Sorry, Schematic is not available.
RX/TX is not mapped to Nextion GPIO

GPIO is for digital signal allowing
- input binding to Nextion component on page.
- input read or output write
Consistent with HMI requirements such as buttons
Not consistent with spi / i2c or the likes.

see cfgpio in Nextion Instruction Set.


Re: Hfsignals send ubitx on 3rd of march #ordering #ubitxv6 #homebrew #v6

G1KQH
 

Mine got stuck too! Sent 23/3/20 from HF Sigs.. Arrived yesterday at my UK QTH 18/6/20.

Its Corona lockdowns fault sorry, I believe India was in total lockdown, but anything ordered from overseas at the moment patience is a virtue.

It also crept in through UK customs without any charges, but this only seems to be achievable using India post, which UK Post Office delivers, use of DHL gets caught every time and 20% VAT gets added and a DHL charge.

73 Steve

G1KQH


Re: "sketchy"

Evan Hand
 

Here is a file on how to use the KD8CEC software with the v6 ubitx.  You doneed to change out the screen, as the KD8CEC software does not work with the stock screen.  If you want touch and graphics, then the 2.8" Nextion screen can be made to fit in the stock case with the other version 6 boards.  Here is a pdf file that explains what was done:


FWIW
73
Evan
AC9TU


Re: "sketchy"

Rick Walker
 

Hi KF4ZGZ,

I have a very recent ubitx v6 running the stock 6.1 software with the 2.8" TFT.  I tried to get the KD8CEC sketch to work, but after trying all the display settings available, I could only get a blank white screen after the update.  Since none of the settings mention the TFT and the code never refers to anything beyond v5, I concluded that the KD8CEC wouldn't work on a new version.

I found another port at https://github.com/reedbn/ubitxv6/.  This one compiled just fine and plays with the 2.8 TFT.

What .h file settings did you use to get the CEC working on your rig?  Do you have the 2.8 TFT?

I'm doing everything using the Arduino IDE 1.8.12 on linux.

kind regards,
--
Rick Walker
WB6GVI


Re: Nextion breakout ribbon cable for v6 #v6 #nextion

rpremo
 

I suppose I can try and search and replace the usage of the touch and D_C in the HMI file to a Digital pin equivalent on the ribbon cable.  Anyone who is more familiar with the HMI agree this is the likely required action and also if you know off hand the reference variables in the HMI.  


Re: Opposite side band rejection ubitx V6

barry halterman
 

I did some experimenting with my V6 Crystal filter to see what I could do to improve the opposite side band rejection, if anything.
I did the Crystal can grounding that Allison suggested. My biggest gain, for me, was to change the tuning capacitors from 68 pf to 150 pf as I had five in the same smd package and the same size as the originals. I mainly operate CW so loosing a little fidelity in ssb, if there is such a thing, was no concern. The original bandpass was 3.0 khz. With the new capacitors the bandpass went to 2.1 khz. More to my liking for CW. I readjusted the BFO and seem to have improved the sideband rejection. I think that with a more narrow filter the opposite sideband is not heard too far from zero beat and the signal attenuates faster as you move further away. 
My test station to listen to the opposite sideband was W1AW last evening on both 80 and 40. W1AW can be extremely strong but I did not get to make measurements. Hopefully I can do that this evening.
So far, I like what I hear.
K3bo

On Thu, Jun 18, 2020, 5:10 PM Dale Parfitt <PARINC1@...> wrote:

Thank you Gary,

My apologies for not doing my homework. Much appreciated.

Dale W4OP

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Gary Anderson
Sent: Thursday, June 18, 2020 3:57 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Opposite side band rejection ubitx V6

 

On Thu, Jun 18, 2020 at 11:38 AM, Dale Parfitt wrote:

Hi Allison et al,

What  is the design in/out impedance of the crystal filter?

Dale,
SSB filter is 200 ohms per the circuit description
https://www.hfsignals.com/index.php/ubitx-circuit-description/
Rgds,
Gary


Re: Nextion breakout ribbon cable for v6 #v6 #nextion

rpremo
 

Thanks for posting the file.  The other one was complaining of access control issues. 

This diagram I was aware of, thanks for sending it though.  Unfortunately this one focuses on the 4 wire connector and I'm looking on other side of the screen to the flat ribbon cable for this breakout board.so flat ribbon would be alternative to the 4 wire connector.

I'm going to try and submit a support case with Nextion to see if I can get this mapping as well.  We'll see if I can find anything with that channel


Re: Nextion breakout ribbon cable for v6 #v6 #nextion

Evan Hand
 

Here it is.  Not sure what is wrong with the link.

73
Evan
AC9TU


Re: Nextion breakout ribbon cable for v6 #v6 #nextion

rpremo
 

Can you upload the diagram as the link is not working.


Re: Nextion breakout ribbon cable for v6 #v6 #nextion

Evan Hand
 


Nextion breakout ribbon cable for v6 #v6 #nextion

rpremo
 

With the v6 I am looking to use the Ribbon cable from Nextion but I could not find documentation of blue and yellow cable equivalents on the breakout board.  The ribbon cable uses IO_0 to IO_07 for the pins outside of 5v and GND which is clearly labeled.  Anyone have a mapping equivalent for TX and RX should be connected too on this board?  There is no mapping from the 4 pin connector to the ribbon cable equivalents that I can find, nor can I find the schematic of the display to try and figure it out.

Looks like the D8 and D9 on the Arduino is used for these two cable connections.


Re: neton screen to ver 6 board

rpremo
 

From this set of files.  The following file did work for the NextionNX3224K028_011 screen using the ubtix_28_E.tft.  When opening the HMI file equivalent I get an error however with a parameter failure but the tft is working fine loading fine via SD card method.

 

Thanks for the help in getting to the working file.

 

From: BITX20@groups.io <BITX20@groups.io> On Behalf Of Evan Hand
Sent: Thursday, June 18, 2020 5:08 PM
To: BITX20@groups.io
Subject: Re: [BITX20] neton screen to ver 6 board

 

rpremooak,
That is a 2.8" Enhanced screen, so you need the files that end in _E.tft.  I do not remember where I got these from, ut here is a zip file with what I believe is the correct tft file.

73
Evan
AC9TU


Re: "sketchy"

Arv Evans
 

Earlier TTY-to-USB adapters used an older FTDI IC for the conversion.  That design 
is still available but most newer units use the CH340 IC which is less expensive,
Most UNIX based operating systems (Linux, OS-X, BSD, etc.) are already CH340 
capable, but Windows usually needs a CH340 specific driver installed.  

Arv K7HKL
_._


On Fri, Jun 19, 2020 at 3:19 AM <Lizooki@...> wrote:
So I am a total noob to arduino stuff. But I did want to upgrade the software to and upload KD8CEC sketch.
I watched Ashar's video,a few others and read a few how to and set off.
Using my newest computer, the shack desk top, I failed, several times. The IDE didn't work.
I decided to try xloader and hex. Nope, not today bobo.
So I tried my laptop. It's a good, powerful, fast laptop.
Guess what? Nope. Nada.
I eventually dug out my 14 yr. Dell laptop out of desperation.
Xloader didn't work.
I went to the IDE ... it immediately told me I need the ch340 ( or whatever the specific USB driver is) that neither new 'puter told me about.
10 minutes later my V6.1 is purring along with CEC hex loaded!
YAY ME! Another small victory!


Re: An update to antuino

Ted
 

Hey, just for clarity, what sort of circumstance should I expect with this upgrade, that makes it suitable for the "foolhardy"?  Certainly, the improvements listed would have a lot of appeal and I'm going to want to try this.  

Thanks.


Re: ANTUINO antenna analzer CERTAIN CLARIFICATIONS REG

Jorge Luiz Fenerich
 

             Thanks for the lesson on antennas Peter, living and learning. Congratulations.
             Jorge PY2PVT _._

Em sex., 19 de jun. de 2020 às 05:10, Peter LB0K <lb0k@...> escreveu:

Muthu - Checking antennas can be confusing.
An antenna only achieves its theoretical impedance and size when in free space, but we don't have long enough feeders for that to ever happen.
In real life we can get a close fit to the theoretical numbers when the dipole antenna is mounted at one half wavelength above ground, whatever 'ground' is. Also at one whole wavelength above ground, about 73 ohms.
One illustration is the graph of 'impedance variation at height over ground' given in the ARRL handbooks and antenna books.
In most of our real situations these sorts of spacing are very difficult to achieve, so we compromise and probably don't get them over a 1/4 wave of 10m or 5m, as in your case. Therefore the 40m section and probably the 20m sections won't achieve anything like 73ohm maybe 50ohm, or under.
These effects pull down the resonance frequency(s) but your antenna doesn't swing on 40m, nor on 20m, indicating that it is too short on both.
As G4NFR suggests make a new one say 5-10% too long, or add on short pieces to similar lengths.

As a rough starting point a 40m dipole will need about 20.5m of wire, a 20m one will need 10m.

The chosen lengths can then be adjusted by folding back the ends and taping them to the 'active portion', while you make more measurements, this way you get a good idea of how much can be easily removed before one cuts tooooo much off. Keep the lengths symmetrical.  I leave mine with a good bit folded back so that when I move the antenna it can be easily be lengthened!
One point not yet answered it that you seem to have an extra resonance in the middle, this is probably coming from one arm of the 40m dipole and an opposite arm of the 20m dipole resonating together.
But perhaps you can't get the projected length suspended above your property, don't despair, just fold the ends down or around.
If you have to cut the ends off, making it too short again, you can use an AMU (aka ATU) to achieve a match.

Now with your analyser you have an exciting time ahead seeing more of what really happens with antennas, and remember you'll see much more of the matching TO the antenna but only a little more of the matching OUT of the antenna into the æther.

Good luck!



--
  73 de Jorge PY2PVT
  Campinas SP
  GG67MD


Re: [Antuino] An update to antuino

Ashhar Farhan
 

Yes, i meant the A7.


On Fri 19 Jun, 2020, 5:07 PM Dave New, N8SBE, <n8sbe@...> wrote:
"extra pin A&"

I think you meant "extra pin A7"?

73,

-- Dave, N8SBE
-------- Original Message --------
Subject: [Antuino] An update to antuino
From: "Ashhar Farhan" <farhanbox@...>
Date: Fri, June 19, 2020 6:36 am
To: Antuino@groups.io, bitx20@groups.io

I have been using thr Antuino exclusively as my main instrument for two weeks now. In the process, I have had to rewrite the entire firmware to make it more usable.
I have uploaded the new code.  I only recommend it for the fool hardy. It is available on github.com/afarhan/antuino2.2
Among the new features is continuous scanning at very fast sweeps, continuous coverage with no gaps to 250 mhz, and much simpler user interface. I have also added a voltmeter hack onto the extra pin A&. You have to add the attached circuitry to it. 


Re: [Antuino] An update to antuino

Dave New, N8SBE
 

"extra pin A&"

I think you meant "extra pin A7"?

73,

-- Dave, N8SBE

-------- Original Message --------
Subject: [Antuino] An update to antuino
From: "Ashhar Farhan" <farhanbox@...>
Date: Fri, June 19, 2020 6:36 am
To: Antuino@groups.io, bitx20@groups.io

I have been using thr Antuino exclusively as my main instrument for two weeks now. In the process, I have had to rewrite the entire firmware to make it more usable.
I have uploaded the new code.  I only recommend it for the fool hardy. It is available on github.com/afarhan/antuino2.2
Among the new features is continuous scanning at very fast sweeps, continuous coverage with no gaps to 250 mhz, and much simpler user interface. I have also added a voltmeter hack onto the extra pin A&. You have to add the attached circuitry to it. 

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