Re: 3,5" Firmware did not fit the whole screen
Hi Frank,
Interesting, how do you update the Nextion via serial.
What do you have to do to the Nextion when sending serial streams.
Thanks
Laurence
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On Sat, Apr 6, 2019 at 5:57 AM DC8FG <dc8fg@...> wrote:
Ah, ok, mni tnx for your help!
I found a solution from Ted #67572 and it looks pretty good for me - mni tnx for your work Ted!
I think I should familiarize myself more with the configuration of the firmware ...
By the way:
For me it is a bit cumbersome to feed the display with sd-card when it is mounted. So now I use a USB / Serial-TTL-Converter from DeLock. Data transfer takes much longer than using the SD card, but this time is the right time for a big cup of coffee ;-)
73, Frank
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Re: 3,5" Firmware did not fit the whole screen
tnx again ted, yes every day new challenges comes up in our wonderfull hobby ;-)
And it is so great that so much OM work together worldwide to find solutions for this challenges and help each other.
This is one of the reasons why I love amateur radio.
hpe cuagn on air :-)
73,
Frank, DC8FG
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Re: Broke it like only a newbie can - Calibration problems
Ted,
Thank you for the reply. This is how I have been tuning (steps 1-5) and I did have it pretty good at first but I didn't realize you had to cycle off to set it. The first night I heard someone from Norway like they were sitting next to me. The next morning things were messed up again and I couldn't even pick up WWV. I was all over the dial trying to pick it up and I think I got way out in the weeds. I did download uBitx manager and put everything back were it was supposed be I got it to where I could understand speech again. I do think it could be tuned in better but I still am not sure what the zero beat should sound like. I have watched a bunch of different videos on it but still not really sure. I don't have another HF radio so I can't use the redundant radio idea. I do tune it more by the musical note and it has gotten me close.
I am am new to HF and building radios (uBitx is my first step in). There is a big learning curve on what to listen for, how to best tune and even propagation. I like this group because even though it is for the uBitx I have gleamed a lot of general radio knowledge as well. The people on here are very will to help out. ?
I will try out your suggestions tonight and see if I can get things dialed in a little better and let you know how it goes.
Thanks again for the help
Bill
KE8EYM
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Re: 3,5" Firmware did not fit the whole screen
You're quite welcomed, Frank. I've learned a few things by trying, while the next step will be to begin from scratch or close to it.?
If this has helped one guy or just a few, it was worth it.? Perhaps we will work on the air together some day.
73,
Ted K3RTA
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Re: 3,5" Firmware did not fit the whole screen
Ah, ok, mni tnx for your help!
I found a solution from Ted #67572 and it looks pretty good for me - mni tnx for your work Ted!
I think I should familiarize myself more with the configuration of the firmware ...
By the way:
For me it is a bit cumbersome to feed the display with sd-card when it is mounted. So now I use a USB / Serial-TTL-Converter from DeLock. Data transfer takes much longer than using the SD card, but this time is the right time for a big cup of coffee ;-)
73, Frank
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Re: Broke it like only a newbie can - Calibration problems
Ted, thanks for posting that bfo calabration. Looks very similar to the old R388 instructions used by myself back in the early '70's. Somewhat tedious but always checked out against primary standards maintained by our second order calibration vans. Their standards were maintained by our Barstow,Ca. Repair & standard's depot.
This always makes me wonder how often we as hams check our "standards¡± like say a Bird meter or in my case, a TS-352 scraped by Barstow, then repaired by me and converted from BA-31's at 4.5 Volts each to common over-the-counter battery¡¯s for resistance measurement. Back then each item had a cal due date from the next senior shop.
Also, thanks to all of you for getting me back into repair and programming along with the Arduino world introduction,& safety, smt useage, tips about many other thinks like Linux, low power antennas, & QRP operation..
Frank, KJ5WI?
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As Ashhar stated above, be sure that you have the correct program for the Nano. The correct version for v5 uBitx is in the "uBITXV5_CEC_V1.122.zip" zip file.? For my v4 boards I used the "HEX1.097.zip" files.? The most recent distribution from Hamskey is the Arduino .ino files that then need to have the correct flags set for uBitx version and display type, complied and down loaded.
I would check that you have the correct Arduino program.
73
Evan
AC9TU
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Which version of the board do you have? I hope the IF is proper. IF of V5 is about 11.0555 Mhz and lower versions have 11.997 Mhz or thereabouts. - f
Well the hot regulator is easy. I discovered it when my rig was having issues, and was spooked. It is normal and okay.
Did you have signal before you installed the nextion? Usually folk build the ubitx in stock form, then upgrade it, it could be a bad wiring connection anywhere in the path. The noise kevel should go up on any of the lower bands when plugging in a good antenna.
Make sure rig is not stuck waiting for a command. Unplug power source to start it again.
Curt
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Well the hot regulator is easy. I discovered it when my rig was having issues, and was spooked. It is normal and okay.
Did you have signal before you installed the nextion? Usually folk build the ubitx in stock form, then upgrade it, it could be a bad wiring connection anywhere in the path. The noise kevel should go up on any of the lower bands when plugging in a good antenna.
Make sure rig is not stuck waiting for a command. Unplug power source to start it again.
Curt
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Thank you to all that helped with prior problems.
I have the nextion 3.5 working fine.?
I do not know what I did BUT now I have no receive. When tuning I hear faint notching with dial turn matching the freq change.
I get a hum but no signal. The voltage regulator which has no heat sink on the??Raduino is getting very hot to the touch.
Any help would be greatly appreciated.
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Re: Real or Clone - Nano survivability, any real difference?
I've encountered several recent clone?V3.0?Nano's with old bootloader pre-installed.? As Jack said, you can overcome it in the newer IDE.
If you have a USBasp programmer, you can easily flash the newest bootloader onto the Nano via the 6 ICSP pins - I don't even solder them in, rather just insert them attached to the USBasp cable (with 10 pin to 6 pin adapter) and hold them over to make a firm contact for the few seconds it takes to flash the new bootloader.? Ebay has the USBasp+cable+adapter all for a few bucks.
Nigel - G4ZAL
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Re: 3,5" Firmware did not fit the whole screen
Frank, those files only properly fill the screens up to a 2.8". Anything over that size?was given as a "go forth and figure it out" and needs to be resized. Check the "Files" tab to the left and see if any of the 3.5" tft's work for you.
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Re: Modern AGC references
The circuits are freely available at hamradiodesigns.com
Jack, W8TEE
On Friday, April 5, 2019, 1:27:28 PM EDT, Curt via Groups.Io <wb8yyy@...> wrote:
Nice topic!
For many ubitx builders around the world, adding a simple audio derived AGC circuit is enough. Several excellent designs. ND6T has a version now sold assembled by N8DAH, or could be home assembled. Sunil offers another AGC circuit. I am using a third option based upon the VK3YE design that I am thrilled with. I slightly modded it, see K3PZN ubitx page for a description.
For many ubitx users, any of these simple AGC circuits provides something good and simple.
For more advanced builders, the HYCAS AGC by W7ZOI previously mentioned by Farhan is excellent. But its not an easy integration into the bidirectional amplifier for the average builder. (I built one of these but its waiting for use in a homebrew receiver).
Those doing the Jackal will get what should be a nice AGC that seems to be based upon the Hycas. Jack sent me the link to its schematic a while back.
If you want to add AGC,? enjoy whichever path you choose.
Curt
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Re: 3,5" Firmware did not fit the whole screen
I don't know the software that well, but is there a version that is scaled to the larger screen size? Given that the Nextion display reads the graphics from an SD card, it may be a static display. I'm sure someone else can answer definitively.
Jack, W8TEE
On Friday, April 5, 2019, 1:53:34 PM EDT, DC8FG <dc8fg@...> wrote:
Hi Folks,
I downloaded the CEC Firmware Release V1.200 and also Nextion LCD GUI File and Version 1.1 Files (https://github.com/phdlee/ubitx/releases/tag/1.1)
My Display is a 3.5" Enhanced Version and so I tried to install the file "ubitx_35_E.tft" .
After installation the display comes up but it didi not fill the screen completely .
So, I loaded up the hmi-file by using the serial port of the display - the same result.
What went wrong?
?I have an older version which fills the screen complete.
In hope for helpfull hints ...
73, Frank
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Re: Real or Clone - Nano survivability, any real difference?
A marginal ATMega382P swept up off some factory floor might?
have IO cells that are more sensitive to RF than a good chip.??
I suppose.
Such a chip is likely to have some other failure modes that would pop up first.
Anyways, in answer to your question:? No,? I haven't.
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On Fri, Apr 5, 2019 at 09:28 AM, Ted wrote:
I'm sure that's all fine and well, though, what is the impact of all of this upon parasitic RF and locking up the radio due to failure from an overabundance of electrons from the wrong direction?? Have you all had some Nano clones burn up with high VSWR and then found other clones more resilient to errors in the field?
?
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3,5" Firmware did not fit the whole screen
Hi Folks,
I downloaded the CEC Firmware Release V1.200 and also Nextion LCD GUI File and Version 1.1 Files (https://github.com/phdlee/ubitx/releases/tag/1.1)
My Display is a 3.5" Enhanced Version and so I tried to install the file "ubitx_35_E.tft" .
After installation the display comes up but it didi not fill the screen completely .
So, I loaded up the hmi-file by using the serial port of the display - the same result.
What went wrong?
?I have an older version which fills the screen complete.
In hope for helpfull hints ...
73, Frank
|
How do, Ray?
That was for the basic 3.5" screen. I've attached an original HMI file and also a compiled TFT for the Enhanced, though I wouldn't blame you a bit for looking it over first.
Best of luck with the capabilities. Comments more than welcomed. It's a learning process on this end.
73,
Ted
K3RTA
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Ray, I'm going to muck with that in the coming week. I need to pick up a few nanos.?Please keep us posted with your experiences.
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Re: Modern AGC references
Nice topic!
For many ubitx builders around the world, adding a simple audio derived AGC circuit is enough. Several excellent designs. ND6T has a version now sold assembled by N8DAH, or could be home assembled. Sunil offers another AGC circuit. I am using a third option based upon the VK3YE design that I am thrilled with. I slightly modded it, see K3PZN ubitx page for a description.
For many ubitx users, any of these simple AGC circuits provides something good and simple.
For more advanced builders, the HYCAS AGC by W7ZOI previously mentioned by Farhan is excellent. But its not an easy integration into the bidirectional amplifier for the average builder. (I built one of these but its waiting for use in a homebrew receiver).
Those doing the Jackal will get what should be a nice AGC that seems to be based upon the Hycas. Jack sent me the link to its schematic a while back.
If you want to add AGC,? enjoy whichever path you choose.
Curt
|
Re: Real or Clone - Nano survivability, any real difference?
I'm sure that's all fine and well, though, what is the impact of all of this upon parasitic RF and locking up the radio due to failure from an overabundance of electrons from the wrong direction?? Have you all had some Nano clones burn up with high VSWR and then found other clones more resilient to errors in the field?
Ted
On Fri, Apr 5, 2019 at 10:30, Jerry Gaffke via Groups.Io <jgaffke@...> wrote: The host computer needs to know how to talk to the USB-to-UART chip on the Nano. This chip converts USB traffic from your host computer (perhaps during a firmware download) into UART transmit and receive wires for the ATMega328P processor chip. The two wire UART interface is a standard that's been around for 50 years, and much simpler than USB. A number of issues here: The original Arduino Nano uses an FTDI chip for that USB interface, a MicroSoft Windows (MsWin) host computer will require the download of a software driver from FTDI so it knows how to talk to that chip. The FTDI chip was wildly successful, and some overseas manufacturers started selling cheap clones of the chip. FTDI responded by adjusting their driver to detect these clones, and can brick devices using a counterfeit chip. Something to be aware of when buying really cheap boards that claim to have an FTDI USB-to-UART chip. The FTDI chip costs four or five bucks, to sell a complete Nano clone at $2 on ebay they need to use some other chip. Most of them use the CH340 chip, which is what the Nano clones from hfsignals are using. The CH340 chip requires a different software driver to be downloaded and installed if using MsWin. Another popular USB-to-UART chip is the SiLabs CP2102, some Nano clones use this chip. Again, requires a different software driver to be downloaded if using MsWin. I'm running my Arduino software for Nano program development and firmware downloads under Ubuntu linux. Everything pretty much just works, all the drivers are included in the default Ubuntu package (must configure permissions). You can also run the Arduino software under linux on a $30 RaspberryPi3 if having trouble with your regular computer. Some in the forum are running the Arduino software under MacOS. Possible, but can be very tough to get MacOS to talk to some of these USB-to-UART chips. When no host computer is plugged into the USB port on the Nano, the USB-to-UART chip is sleeping. It is possible to drive the UART TX and RX lines on the Nano from some other off-board USB-to-UART chip. This might be handy if you have trouble with talking to a CH340 chip on your Nano from MacOS, for example. The Arduino organization has kindly made their software and the design for these boards open source. So Nano clones are legit, though they are successful largely through the hard work of the Arduino guys. As Jack suggests, it's good for all of us to help Arduino pay the bills when we can. The bootloader issue that Jack points out is not something I've encountered,? but good to be aware of. Jerry, KE7ER On Thu, Apr 4, 2019 at 08:04 PM, Jack Purdum wrote:
I've been pretty lucky with the clones. The biggest problem I've had is the non-standard drivers. However, in most cases, downloading/installing the CH340 device driver fixes that problem. More recently, I thought I was seeing the driver problem again, but even installing the CH340 didn't fix it. Turns out some of the clone manufacturers are using an ancient bootloader that is confused by the recent versions of the IDE. Fortunately, it's easily solved. Use the menu sequence Tools --> Processor: "ATmega328p" --> ATmega328P (Old Bootloader) and do another compile/upload sequence and that should take care of it.
?
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Ted