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Re: compile error

 

going for external 3.3v regulator and external level shifter as suggested by G8DJM
#v6 query re test extender board #v6

Andy_501
 

Is there a mfr's extender board available that can plug into the nano/TFT board combination socket to extend display and nano combo board above the chassis box to be able to use scope probes and/or multimeter probes in live test/maintenance/research situations?

73 Andy ve4per
Re: V6 TFT ADAPTOR by G8DJM

 

Thanks again David,
I ordered some too (plus some 8 channel). Saves time soldering lol. Brilliant circuit.

73

Brian_____MM0BEF
Re: #calibration #calibration

 

Hi Evan,
Where is the screen that shows the current settings?
Re: Ubitx V6 Nextion 2.8" Display Modification

 

I agree Reed,
The nextion in bulk would be substansually more expensive than the one supplied with the V6. People will mod it close to the cec firmware though
, even though it has not the memory or speed-(bring back assembly language lol).
Re: Ubitx V6 Nextion 2.8" Display Modification

Jack, W8TEE
 

I haven't played around with the Nextion for years, but I felt constrained by the programming environment. I'm sure cost is a very important factor, too.

Jack, W8TEE

On Monday, January 13, 2020, 12:13:54 PM EST, Reed N <greenkid336600+groupsio@...> wrote:


I don't have a good answer for why he didn't base the v6 software on the CEC version, but the screen choice is absolutely cost driven. Nextion screens, while not all that expensive, are MUCH more expensive than the TFT that comes in the kits, which keeps costs lower.? I think it's the right choice.


Reed

--
Jack, W8TEE
Re: uBitX on CW #v6

Dave Dixon
 

Hi Bob,
?????????? ive found the same on my V6 and am very pleased with it now ive eventually got into the settings to change it from straight to paddle key .now on the hunt for a nice add on cheapishadjustable external cw filter.Dave G0AYD..


On Mon, 13 Jan 2020 at 16:52, Bob Bennett via Groups.Io <bobsmacbox=[email protected]> wrote:
In my case, using a dual paddle, it takes about a second for the initial dit or dah. After that operation os OK as long as you maintain your rhythm. If your pause is too long, the next dit or dah is delayed that second again.?
--
Bob
NZ2Z

Re: Ubitx V6 Nextion 2.8" Display Modification

 

I don't have a good answer for why he didn't base the v6 software on the CEC version, but the screen choice is absolutely cost driven. Nextion screens, while not all that expensive, are MUCH more expensive than the TFT that comes in the kits, which keeps costs lower.? I think it's the right choice.


Reed
Re: VK4PP Ultimate uBitx Daughter Board. #ubitx #filters #parts

 

me too and thanks for the help
Re: uBitX on CW #v6

 

In my case, using a dual paddle, it takes about a second for the initial dit or dah. After that operation os OK as long as you maintain your rhythm. If your pause is too long, the next dit or dah is delayed that second again.?
--
Bob
NZ2Z
Re: Very low ssb output for v5

 

Evan, please study thevpost? PA? lpf for 40m band. Let us take sch values as correct. Tro take out the coils one by one? ( you can do without removing the board) and check for inductance and do some trimming. The 40m band power increases.
All the best
Sarma vu3zmv

On Mon, 13 Jan 2020, 10:57 am Evan Hand, <elhandjr@...> wrote:
To answer your request for the voltage measurements, You can use the v4 values for the SSB transmit side, as there are only minor differences.? The audio receive and bandpass filters are the significant differences, with only the audio section being able to be measured with a volt meter. There is a change in the IF/SSB filter frequencies, however this again will not show up in voltage measurements.

/g/BITX20/files/VU2ZAP/uBitx4%20voltages.xlsx

To help, download the v4 and v5 schematics to compare.




If you compare the two, you will see that the Q6 mic preamp sections are the same.

The most likely issue for low SSB transmit power after the BFO calibration is the mic gain.? There have been varying reports on the supplied mic performance.? Most have required a preamp to boost the signal.? On the three that I have built, I have found the provided mic to be inadequate to drive to full power without distortion.?

Hopw\e this helps and have fun!
73
Evan
AC9TU

Re: Ubitx V6 Nextion 2.8" Display Modification

 

¿ªÔÆÌåÓý

One more note. In the CEC setup on the display you and lower the brightness of the display to further lower the current draw. Doing this I¡¯m now down to just 200ma. Also you can set a timer o turn on the back light after 3 minutes. With the backlight off I¡¯m seeing 170ma of current draw (this is measured at the power plug of the V6) again with power (5v ) removed from the Nextion the current drops to 150ma.

With all the great work that KD8CDC has done I wonder why the V6 uBitx just didn¡¯t go with the 2.8 Nextion and the CEC firmware? It¡¯s just such a nice and more complete setup with a better foundation to continue to build on version recreating the wheel.

73 Bill NG1P


On Jan 11, 2020, at 6:19 PM, bill richardson via Groups.Io <ng1p.bill@...> wrote:

?I did this mod to my V6 and with the Nextion display my current draw dropped from 350ma to 250ma (TFT draws 100ma more!) also I wired a on off switch so I could remove 5v from the display. With the display off I¡¯m seeing just 150ma. I will also add the 5v regulator is running much cooler. I like the option of shutting off the display to save on battery life.

One other thing I did differently was instead of using a angled display plug I just simply solder to the back side of the board (keeps the wires out of the way) I also drilled the Nextion mounting holes a little wider so all 4 mounting screws are in place on the front of the display.

73 thanks for the great mod. Bill ng1p?


On Jan 6, 2020, at 5:29 PM, bill richardson via Groups.Io <ng1p.bill@...> wrote:

?Sounds excellent. I may do what you did. I¡¯m looking at ways to save on current and I really like the CDC code. If you remove the 5v from the display I assume the radio will still operate? With your hookup it would be easy to add a switch.


On Jan 6, 2020, at 4:50 PM, wb2cba@... wrote:

?

Hi Bill,

Before the mod I checked each display¡¯s datasheet to compare power consumption and ?both draws around 60 to 65 ma of current.

I didn¡¯t actually measure the current draw on the raduino board 7805 regulator but it does feel hot with both displays, stock and nextion. May be it is a good idea to swap the heatsink with a notch bigger one.

I used the rig continously for almost 3 hours yesterday for qso¡¯s and nothing smoked up so I think it¡¯s surviving the heat ?:)

Barb, WB2CBA
Re: #calibration #calibration

 

The short answer is yes.? However it is the same basic process as the v4 2 line display.? On the Home screen, when you press the encoder button, you get a yellow 20x2 text box come up that has the same function as the original non-graphic screen.? One of the selections in the menu scroll is to turn on calibration, like the original firmware.? The one difference for v5 sets is that the master calibration went back to zero beating a known am signal.

There is a screen that will display the current settings for the calibration.? I have not found a way to chage them other than through the "yellow pop up."

Hope that helps.
73
Evan
AC9TU
#calibration #calibration

 

Hi can you calibrated from nextion screen?
Re: V6 TFT ADAPTOR by G8DJM

 

Thanks, I just ordered two sets (10) from the ebay US site for $2.66. Doesn't make sense to roll your own.? Dale

On Mon, Jan 13, 2020 at 2:51 AM David S <dsatn04@...> wrote:
Dale

I did this as a quickie using the 5 for 99c or so Chinese premade modules, like these.



There's no reason why you cant just roll your own though, I'm not doing this as a project, more to help on how to get out of this predicament with the displays.

Regards David S



--
Dale Hardin
Elberta, AL?

--
Dale Hardin
KS4NS
Elberta, AL
Re: Version 4 unbuilt for sale.

Dave Dixon
 

Hi,
????? I have an unbuilt complete version 4 for sale.Mini stroke stops me starting this.?75.00 plus post. Contact me off group daveg0ayd@... willing post anywhere as long as you pay the postage costs. Dave G0AYD.QTHR QRZ .COM.

ALSO BITX 40 VERSION 3 BOARD NO RADUINO..?40 PLUS POST.
Again contact me off site daveg0ayd@... and will post anywhere you pay postage..
Re: New file uploaded to [email protected]

 

Hi Gary

Yes sorry the regulator backwards, my bad eye's and late at night I missed that, all fixed and the new version uploaded.

Why use an additional regulator.? It's the backlight that draws most of the current that remains on the 5v rail through a 22 R, I wanted to minimise the possibility of "operator error" having people break out the 3.3v from the Nano.?I've got a Ubitx V3 MM0BEF has a V5, neither has the same wiring loom as the V6 but even that does not have 3.3v on the display cable.

This was not intended to be a project, just a guide for people who are having the issue of sourcing? Displays either as replacement for the V6 or to upgrade earlier versions.? I cant see any source where your sure your going to get a Display that works correctly.no messing.

HTH.

Regards
David S
Re: V6 TFT ADAPTOR by G8DJM

 

Dale

I did this as a quickie using the 5 for 99c or so Chinese premade modules, like these.



There's no reason why you cant just roll your own though, I'm not doing this as a project, more to help on how to get out of this predicament with the displays.

Regards David S
Re: ubitx #v6 Screen Speed Mod, and interrupt driven encoder wheel mod #v6

 

I too created a fork, not with Smitty's additions, but one that uses PlatformIO instead of the Arduino IDE. You can check out the code here:


The changes are pretty minimal from the existing Arduino IDE sketch:

  • Create a new PlatformIO project by creating a directory and then using "pio init" in it.
  • Update the platform.ini with the board details
  • Move the .ino to be "main.cpp"
  • Added "Arduino.h" to the includes of main.cpp
  • Removed glcdfont.c as everything gets compiled
  • Backup the existing firmware
  • Erase with "pio erase"
  • Compile and flash with "pio run -t upload"
I really like PlatformIO because of the build automation being so nice and not having to click on menus and such. Besides installing the PlatformIO binaries, there isn't much too it, although I can see people not wanting to mess with it, though. I did this for my own sanity and wanted to pass the work along, hopefully it helps.

Of course, using this is much easier than the above:

  • git clone?
  • git checkout?pio_pdq_gfx_update
  • avrdude -p m328p -c arduino -P /dev/ttyUSB0 -b 57600 -U flash:r:flash_backup_file.hex:i? # backup
  • pio erase
  • pio run -t upload
Re: Very low ssb output for v5

 

To answer your request for the voltage measurements, You can use the v4 values for the SSB transmit side, as there are only minor differences.? The audio receive and bandpass filters are the significant differences, with only the audio section being able to be measured with a volt meter. There is a change in the IF/SSB filter frequencies, however this again will not show up in voltage measurements.

/g/BITX20/files/VU2ZAP/uBitx4%20voltages.xlsx

To help, download the v4 and v5 schematics to compare.




If you compare the two, you will see that the Q6 mic preamp sections are the same.

The most likely issue for low SSB transmit power after the BFO calibration is the mic gain.? There have been varying reports on the supplied mic performance.? Most have required a preamp to boost the signal.? On the three that I have built, I have found the provided mic to be inadequate to drive to full power without distortion.?

Hopw\e this helps and have fun!
73
Evan
AC9TU
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