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Jack, W8TEE

On Sun, Dec 15, 2019 at 07:18 PM, Jerry Gaffke wrote:

I suggest you get these Nano clones off of Amazon:

Thanks Jerry - done!

73,
John AE5X

开云体育

Diego before powering up your board measure the trimmer resistors. From the underside of the board measure both trimmers with your ohm meter and compare them. They should measure about the same to ground comparing pin to pin. If not I would replace the trimmer nearest the heat sink because it might have been damaged. Hopefully there was enough wiggle room and it survived the adjustment to clear the heat sink installation.?

Solder joints look fine. It's hard to be 100% sure from the image, though. I suspect what happened is that the trimmers were inserted with the leads at full length, then when the heatsink was added it moved the trimmer, which was subsequently soldered. Just checking against my v3 board it looks like the heatsinks are a bit deeper on your board which causes it to intrude on the footprint of the trimmer. If you go through the bias adjustment procedure you should be able to confirm that they are working -



BRs
Gerry

Hi all ! My uBiTX v5.0 just delivered !
As you can see from the attached photos, the quality of the wiring of the blue trimmer one is very poor.

I am convinced that the board sent to me could not have passed the quality controls !!

Eric,
When you tighten the BPF to around 300Hz, it does for sure. This would not be possible on the uBitx without significant rework. Yes, the Goetzel algorithm can be tuned to a specific frequency but it is still error prone where there are many signals in the passband.
/ Gerry

Hi Farhan

I went to the link for the v6 code??

however the underlying URL to that text is?

if i change the v5 to v6 i.e.?

github says page not found??

v6 also does not appear in any of the repositories listed

cheers

Matt

Joel,
I can see your point, but I already have enough big colour screens in my life. I like the minimalism to the original design.

/ Gerry

On Sun, Dec 15, 2019 at 04:45 PM, Jerry Gaffke wrote:

Slightly different worlds.

In a second reading of your comment I realize you are making the point of the differences of the processors, not the sameness being they are both ARM processors.?

So the part where I say "but each manufacture has a lot of latitude" should have acknowledged that that was the point you were making, rather than being a counter argument.

Tom, wb6b

On Sun, Dec 15, 2019 at 04:45 PM, Jerry Gaffke wrote:

They are both ARM processors.

Yes they are both ARM processors, but each manufacture has a lot of latitude in how the peripherals and I/O are designed. So, that would make porting from Teensy to Blue Pill much easier, especially with the Wire abstraction Arduino uses for I/O.?

However, I looked at some of the libraries the Teensy had in their toolchain and they were maintained with the Teensy version of things. So using the Teensy toolchain with Teencys looks like you will get libraries that have been curated and up to date. But they did not necessarily try to include code in compile options for other ARM processors. So I guess you can take the Teensy libraries and add the changes needed for the Blue Pill, or fix the current STM32 libraries and bring them up to date, or write a bunch of wrappers.?

I did see in the headers Jack posted, yet another graphics library. I may try that on the Blue Pill.?

Graphics on the STM32Cube tool chain is no walk in the park either. You have to work yourself through the learning curve, confronting a?cacophony of documentation. Be led astray by out of date app notes. Follow blind alleys suggested by the easy get started videos. Try the examples, but they are for different toolchains and have to be converted from the gitgo to STM32Cube (unless you have the expensive toolchains the examples were written in) and fix the bugs resulting from the conversion process. (and you just wanted to quickly get an example going so you could learn something from it)

The graphical user interfaces build with these tools are trying to compete with the expectations people have from using smartphones, so they are more complicated than what I'd try (actually they would not fit) on a Blue Pill.

Finally, for graphical user interface applications, you finally realize you shouldn't start from the easy everything is integrated here point in the IDE, although they keep pointing you there. It is better to just use a working example (after you fix all the incorrect relative library paths pointing to code outside the scope of the project) that already has the clocks, I/O, graphic chips, DMA and all, already working (then simply modify the I/O init code provided by the example code), rather than dealing with a clock and I/O configuration tool that has no idea how the chip (actually development boards from STM) should be configured. So none of the I/O is configured correctly, even assigns pins needed for the graphic I/O to other functions making them unavailable. This is part of the learning curve if you want to start from the chip configurator, like they try to get you to do. This is part of the learning curve of learning a new tool set.?

Many of the manufacture supplied toolchains are disorganized in similar ways. They are far from alone. But the price is right.?

So the best word of wisdom I got, regarding difficult to use tools, from a manager was. (This was at a company where our department head was out for an extended time and they hired a former employee [was currently a Oracle consultant] as an interim department head.)?

In a meeting we were dishing out our dislike for some of the tools of the time and how bad we felt they were. We were hoping for enlightenment, as he was a big time, highly experienced, certified Oracle consultant.?

The interim manager said, "I know the tools are bad and terrible to use". "But! Everyone in the valley (Silicon Valley) uses Oracle, and I make a lot of money as a consultant because of that". So case closed on bad tools. I guess I haven't figured out the lots of money part, but still pays better than working at the gas station.?

I suppose when I get more time under my belt with the development tools I'm now using and learning more complicated UI development, I'll think how obvious everything is. Then I'll make yet another YouTube video on how easy it is.?

Tom, wb6b

After almost 4 years my BITX40 built on a cookie tin will be looking sad when my? long for saved V6 kit arrives
The BITX40 was a excellent show project for all of thesis years as it did attract attention to the hobby by many.
I searched high and low for a cost efficient new housing? for it? but at this time it's not feasible to spend almost $25 plus another $25 for shipping for a nice metal case,
I did find this plastic case? EF01 Electronic Plastic Shell Cartridge Handle Project Case Desk Instrument 200x175x70mm? from a china source for $10 including shipping the only problem that I have is that without a decent cut and drill template (Front and Back ) I will most likely botch the work.
Yes I did find the Ebay offerings that have the "printed" inserts but at $25 it is not feasible.
If any one has a TEMPLATE that I can print out and then use for the cut and drill I would? be extremely grateful? and I can save the BITX40in its new home as well as show the picture of the before at the next local ham exposition.
Best Regards.
Steve
AB2ET/4?

I ordered the v6 display for my v5 today. Once some people have had a chance to test their v6 could i have opinions on differences and ease of operation over nextion screens. Like the cec firmware but want to give the stock v6 firmware a go. Will also be looking into how much more complicated the firmware for the v6 screen is to modify.
73 MM0BEF

John,

I suggest you get these Nano clones off of Amazon:
? ?
Should be pretty much identical to the Nano that ships with the Raduino.
The header pins are not yet soldered into the board, this is important because
they will have to be soldered into the top side of the Nano so they can plug into the Raduino.
Normal people solder those pins into the bottom side.

Having these means that if you somehow blow the Nano on your Raduino,
you can replace it in a matter of minutes.? ?
Also, you can leave the working firmware in one Nano while experimenting,
easy to recover by just plugging the original Nano back into the socket
on the Raduino.??

There are lots of tutorials on the web for doing silly things like blinking an LED.
Play with some of those, see how the code works.

Anyways, you will also need a computer to
host the Arduino IDE, plus a mini USB cable to go from that computer?
into the Nano when programming it.? Make sure the USB cable works
to download pictures from a camera or something similar, many of those cables
are only meant for charging and cannot transfer data.

Next step is to figure out how to load the Arduino IDE on your computer.
? ??
Another resource is?
? ??/g/BITX20/wiki/Raduino-Topics

And finally, get your computer to talk to the Nano over that USB cable.
This is where some people get hung up and start asking questions on the forum.
On some computers you will need to install a special driver to talk to the USB chip
on the Nano.? As I recall, Ubuntu Linux had no trouble at all, it just worked.?
?
?Good Luck!
Jerry, KE7ER

They are both ARM processors.
But the Blue Pill processor is made by ST,? the Teensy by NXP.
Slightly different worlds.

*** Note, resend or previous email with new lower prices ***

Hello all,

I've got two unbuilt/unattempted kits for sale. Both kits are as packed by HFSIGNALS.

First up, an unbuilt Bitx40 from Dec. 2016, 2x speakers and an undrilled case from Amazon (blue & white) sold as kit, looking for $50 shipped ConUS. (Pictures of case available, contact me directly if interested.)

Second, I have an unbuilt uBitx from Feb. 2019, asking $100 shipped ConUS.

Both kits have original invoice from HFSIGNALS.

PayPal accepted, email me direct with any questions.

Thanks,

Ken Hansen, N2VIP
ken@...

I'm so new at it, I only barely know how to spell Arduino.

I have a uBITX v6 on order and want to be able to update the firmware as eventual updates are sure to come. What do I need to do that? An Amazon link would be helpful. There are many tutorials on YouTube and "learning kits" on Amazon but I don't know which are relevant to what I'm wanting to do and which are tangents that go off into unrelated areas.

The whole thing is pretty foggy to me as an RF-inclined tinkerer...my main purpose with the uBITX will be to change that - just not sure where/how to start.

Tnx/73,

John AE5X

I just found and applied this
and for me checking in uBITx MM software the IF function and then setting ATT=70 made a big difference in receive performance.

The number of FT8 signals received just exploded, at least doubled or tripled.

At the moment I am receiving WSPR and the system with the uBITx is better then my YAESU FT450D.

Of course they are on different antenna's

All this was after noting that my base frequency was allright, about 8 Hz different from FT450D (2ppm) on 80 meter.
And correcting the 'location' of my USB sideband, as this was too far away from the dial frequency.
I calibrated the BFO by carefully changing the big number in MM for USB calibration. In my case factory setting 11054600 and now 11056500. This took me 7 iterations watching the change in the 2 FT8 results: dial frequency and active bandwidth.

This started at 7.072.000 between 2300 and 4500 and ended where it should be at 7.074.000 between 300-2600.
Both VFO and BFO can still be improved I know.

Oh, I am currently using the latest CEC firmware 1.20
-
PE3ES - F4VTQ - Erwin
73