Hi Mark:

I'm at the same rock/hardplace as you with respect to the T41. My biggest complaint with the Arduino IDE 2.3.0 is the lack of a symbolic debugger. That said, I not going to change horses in the middle of the stream (river?). I want to keep the IDE as I know many inexperienced programmers who are comfortable with it. Also, the 2.? version of the IDE is a real step forward for that environment. Rehosting KD8CEC's software on the Teensy 4.1 should not be too bad because the resource depth is very good. While we're using a 5" RA8875 display, I'm sure a smaller, generic, TFT display will likely work well and be less expensive.
--
Jack, W8TEE

Ted,

Perhaps this is what you are referring to?

/g/BITX20/topic/progress_report_on_re_hosting/104320899


I have been working on KD8CEC V2 to add an option to use "regular old cheap tft screens with an SPI bus. And of course there is all the work being done on the T41 over on the?/g/SoftwareControlledHamRadio/topics

Mark


--
AJ6CU/7
KD8CEC 2.0, Nextion Screens,? and open source uBITX Raduino boards for Arduino IOT, BLE, RP2040, Teensy 4.0, and Raspberry Pi Pico
https://github.com/aj6cu

I'm looking for work that does what the KD8CDC files do for a Nextion screen while connected to a uBitx radio, but which are of different designs written by others. I seem to remember seeing some in the past.?

Sounds like progress, Matt! Check the wiring to the 10 turn pot...the center pin is not the wiper on those I've used and that being connected wrong could prevent the frequency from changing...if that is what you mean by "display of the turns".

The BitX40 audio amp can go into oscillation with high (max) setting of the volume control on mine. I just avoid that setting but it could probably be easily patched.

=Vic=

开云体育

Ted

if yiu are looking for alternative ?projects that use Nextion there are a couple of Facebook groups.?

Nextion Display Group
Nextion ham radio screens

not very active. The latter one is for zumspot
type
devices ?

mark
--
AJ6CU/7
KD8CEC 2.0, Nextion Screens,? and open source uBITX Raduino boards for Arduino IOT, BLE, RP2040, Teensy 4.0, and Raspberry Pi Pico
https://github.com/aj6cu

On Tue, Feb 13, 2024 at 07:27 PM, Charlie, W4CLV wrote:

I have already replaced the 5v regulator along with 4 or 5 resisters tonight. I had been waiting on the parts to arrive. I may have some more time this weekend to look at it.?

I wish you all the luck I can give.. That stinks when power supplies destroy radios with overvoltage. This would be an invaluable add-on to prevent this issue in the future..??

I assume you already grabbed the schematic as a reference for your repair..??

Please let us know how this goes and if you get it up and running again!


-JJ

Thank you Aaron.

@Everyone..
Are there any requested features or potential improvements to the existing scripts for the sBitx that I could explore developing?



-JJ

Thanks for the response, Vic. I believe I am using Allard's code.?
Your response was quite logical and simple - so I tried it, despite the 2 things being shown - dit sensor and PTT on were only connected on 1 end, to the P1 plug in, I removed them from the plug altogether, and both disappeared from the display. That does not make sense to me, since the other ends were connected to nothing, but it worked, so great!

Last 2 issues - horrible ringing sound in the speaker (I have a few others I can try), and the display of the turns on the 10 turn pot on the display - did not see that on the original software, and not sure I want to - but I can fix that I assume in the code if everything else works.?

Hi David,

I have already replaced the 5v regulator along with 4 or 5 resisters tonight. I had been waiting on the parts to arrive. I may have some more time this weekend to look at it.?

Sorry everyone, I neglected to say it an sbitx v3.

Good evening everyone. I received my radio a couple weeks ago and was able to use it for a couple minutes. Long story short steer clear of Chinese bench power supplies. While updating and installing some of the addon software, the ps malfunctioned an went from 13.8 to full 35volts before I could shut it down. At that point I shut the power but not quick enough. After powering back up, or should I say, attempting to power back up, the radio wouldn't power back on. I have been able to check the pi and display which work. The issue is there is no power going to the pi. I have attempted to troubleshoot the issue but can't seem to get anywhere.?

So..... Is there anyone that works on these boards or would it just be cheaper to put down the $200 for a replacement board.?

I've had three working V4 or V5 radios since 2019 and have done the CDC screen on each. I even modded the 2.4" graphics to work on a 2.8" screen, played with the 3.5" graphics a bit, and have uploaded them somewhere. It's been lots of fun.

But that's another story.? I'm sure I've seen other work made available to the community, other Nextion screen programs by other writers.? A bit of web searching has turned up only the CDC works; nice as this collection is, I just want to play and see how some other stuff works.

Anybody have a download link or just have some 2.4" screen files they'd like to share?


Tnx.

K3RTA

Steve,

Thank You very much,

Robert Guentz, AG6LK

Ashhar,

Yes I am using the Arduino IDE v2 latest.?

Challenges:?

1. Got to configure the preferences of the gui builder (squareline studio) to put the code in the right spot. (the "src" subdirectory of your project)
2. You have to generate a main program from the GUI builder and rewrite the initiation code for your app. (one time effort)
3. The tft-eSPI library has to be directly configured to use the appropriate pin and aft driver board. ?(This part is really annoying as you actually have to go in to the libraries directory and modify the header of the tft-eSPI library (which incidentally has to be re-done at every library release....). I "think" that the lvgl folks are going to incorporate their own tft eSPI driver. Need to check this one...

I think with the current configuration it is really getting to the limits of what can be done with the Arduino IDE. For example, I am not sure how I will support multiple screen drivers (tft-eSPI) with just #ifdefs within the CEC source code. ?Fortunately, lvgl seems a little more configurable. But still going to have #ifdef for different screen resolutions. (need a compatible GUI builder for this...) Hopefully lvgl has its own drivers and this will be simpler...

The lvgl and squareline folks are having a fallout so not sure how this will shake out long term. At the moment squareline only supports V8 of lvgl and v9 is incompatible. Watching how this one plays out.

I am thinking that with this complexity, we are getting to the edge of being able to use the Arduino IDE. I am trying to hang on because the learning curve for something like platform io is a lot harder for the typical Ham ?that dabbles in software mods. My github branch:??is unstable but up to date. The libraries subdirectory above the code has the copies of the lvgl and eft libraries that I use.?


73
Mark


--
AJ6CU/7
KD8CEC 2.0, Nextion Screens,? and open source uBITX Raduino boards for Arduino IOT, BLE, RP2040, Teensy 4.0, and Raspberry Pi Pico
https://github.com/aj6cu

Brighter people than me might know how to make this easier to install, and create an icon for the desktop, etc etc.?

I'm not an expert on the Xiegu (which several in our local club have purchased) but apparently it has the same problem and the same solution.??
As early as 2019, users of the Xiegu product were using ICOM emulation, but reported it was not that great:? ?
Users were making their own UART-based CAT control cables for the Xiegu back in 2021 and FLRIG had started to include Xiegu as one of its supported transceivers?
Well known author Julian OH8STN back in 2022 was explaining how to use WINLINK (one of his favorites) on the Xiegu, with ICOM emulation.? ?

Had I known about those solutions for the Xiegu, I could have figured out the UART-UART cable more quickly!? ? ?However, I don't think Julian is a Winlink sysop nor a user of ION2G ALE.? ?So as time becomes available, I can test out and make the sBitx solution proven on additional pieces of legacy software that will likely not get tried on the Xiegu....giving us a bit of an edge there.? ? The huge advantage of the sBitx in this regard -- especially for the HIGH SPEED SCANNING of ALE -- is the lack of relays.? ? ION2G uses the "split" feature of ICOMs to get around that problem but my friends here in Florida always forget to turn that back OFF and this causes the 7300 to appear non functional....we may be able to avoid this on the sBitx.? ??

Even ARRL W1AW is now a WINLINK RMS gateway.? ?(I've connected to them.)? Back in 2008 when this system was rather infantile by today's standards, there were 12,000 radio users.? Today it is a staple of the "emcomm" crowd after basdically winning the bruising battle in front of the FCC over PACTOR.? ?The 300-baud HF limit is now history as a result (we won!) and PACTOR 4 is finally legal here in the USA as it has been in much of the world for much longer time.? ?VARA HF is at the same speed level as Pactor III, and suffices for most users.? ?Pactor 4 has always been available to the SHARES users, and that group has grown by leaps and bounds after some of the wildfires in the western USA toppled telecommunications towers and state after state embraced WINLINK as a backup communications strategy.? ?There are now almost as many government-affiliated SHARES Winlink gateways in the USA, as there are HF ham radio gateways.? ? ?The State of Florida is encouraging each county emergency operations center group to gain ALE capability via ION2G and my group (Alachua County) has done so.? ?(The software is a PAIN to configure and only supports a very limited number of radios, the ICOM series included.)? ? ?

The availability of ICOM emulation for the sBitx will allow a few more users to enjoy this wonderful relay-free radio.? And it will make my talk about the radio at the upcoming WCF TECHCON conference (a very small conference, to be sure) much easier!

73,
Gordon KX4Z

Jack, I now have the "0.1" version of CAT control for the sBitx from legacy programs, via an emulation of an ICOM, available.
I believe it does what you were looking for.
See:? ?/g/BITX20/message/108957

You will need to make up an interface cable with a UART at each end, and then just connect the TX line from one to the RX line of the other.? ?Don't connect the +5V lines at all.? ? Just the signal lines (crossed) and ground.? ? ??

This is a very simple beginning so it isn't fancy at all.? ? Others might know how to make it much more "user friendly" with an icon, changes to ports etc.? ?I don't.? ?I just have it working quite nicely with the legacy program of interest to me, Winlink (and their server programs should work also, and soon ION2G should work).

Let me know any comments,
73
Gordon KX4Z