Date   
Re: Modular uBitx - "Ex: Harmonics"

Nick VK4PP
 

One of these?
Image result for mini mega 2560

Re: Modular uBitx - "Ex: Harmonics"

Glenn
 

Nice idea Nick, Jack,

I'm currently doing a HF rig based on works from the book by EI9GQ. [ Not a qrp rig. No real attampt to lower Rx current)]

I first built all the sections as DIY boards then consolidated them into the magic 100x100mm for Chinese supplier.
Receiver is working, low level Tx side all tested up to 1W level.    Uses 9MHz crystal filters available on ebay at least for now, from a "Telrad" board. Might possibly build own filter also as the Telrads are bit wide. No CW.
Band pass filters plug into a 100x100 motherboard and are used in Rx and Tx modes.

I'm not suggesting we go down this road but that the idea of using 100x100mm boards has a lot of merit.

I'm yet to decide on the control Micro but for initial testing uses a NANO and Si5351. Your suggestion Jack to use a more capable Micro is a good one.



BPF, one fitted to mother board.

Re: Modular uBitx - "Ex: Harmonics"

Nick VK4PP
 

HI All.
Blue Pill looks to be a winner too me, I have 2 laying about actually. VERY cheap, 2x the nano memory. and 32bit.
Should fit the bill perfectly, extra IO too. (26)
Just got to get the Code running on it, Jack?

Cheers
Nick VK4PP

Arduino Hangs

Howard Fidel
 

I was hopping I could pick someone's brain before I start to experiment with the code I am running on my Arduino. My Arduino nano died, and I just replaced it with a new one. (I tried to socket it, but the pins didn't plug into any sockets I have.) The code hangs at the version number. Is there anything going on that the code looks for that it is not seeing to move on? I know how to add print statements to see if I can locate where the problem is, but if someone has seen this, maybe you could save me some time.
Thanks,

Howard

Re: Modular uBitx - "Ex: Harmonics"

Adrian Waiblinger
 

Keep a option for 630m band too. 
If to hard an output from the Nano to drive the external 630m pa relay / 

Regards 
Adrian 


On 15 Aug 2018, at 10:44 am, Nick VK4PP <nickpullen@...> wrote:

One of these?
Image result for mini mega 2560

uBitx v4 plus 3 AGC kits and 3 Pop Fix kits for sale

RCBoatGuy
 

I have a new, unbuilt v4 uBitx kit, complete in its original plastic box, including a Raduino with a socketed Nano and the normal parts kit.  Aside from a brief visual inspection when I received the package, the uBitx kit has been untouched.  I just haven't had the time to mess with it.

I also have 3 of the Kees/Don AGC kits (unbuilt) and 3 of the Kees/Don Pop Fix kits (also unbuilt).

My daughter's college tuition is due, so I'm selling all the above for $140 shipped.  I will ship via medium Priority rate box anywhere in the continental US.  Payment via paypal, please.

If you are interested, please contact me using my callsign at arrl.net.

Many thanks,

Carl, K0MWC

Re: Arduino Hangs

George
 

Dear Mr Howard, when I some how killed my Arduini Nano I didn't know what to do but I've find small programme XLoader and with it help managed to load HEX file from KD8CEC for mBITX transceiver - good working programme. May be it'll help you. George RX3ARG/UR4CRG

Re: uBITX and nulling the carrier #ubitx-help

George
 

O sorry for the mistake Allison. Good  understanding with good equipment(I have NWT for spectrum). By the way 8-crystal Chebyshev filter will have just the same input/ output impedunce and it is not need to change transformes as for 4-pole SMD 45 MHz filter(570 Om). Thanks George. 

Re: Modular uBitx - "Ex: Harmonics"

Jack, W8TEE
 

This is what we used for the antenna analyzer (QST, Nov., 2017). The only reason I switched away from it was its clock speed. At 16MHz, it just wasn't up to the DSP power we needed.

Jack, W8TEE


On Tuesday, August 14, 2018, 9:57:21 PM EDT, Adrian Waiblinger <vk5zbr@...> wrote:


Keep a option for 630m band too. 
If to hard an output from the Nano to drive the external 630m pa relay / 

Regards 
Adrian 


On 15 Aug 2018, at 10:44 am, Nick VK4PP <nickpullen@...> wrote:

One of these?
Image result for mini mega 2560

Re: Arduino Hangs

Jack, W8TEE
 

Does it run the sample program named Blink that comes with the IDE?

Jack, W8TEE


On Tuesday, August 14, 2018, 9:45:21 PM EDT, Howard Fidel <sonic1@...> wrote:


I was hopping I could pick someone's brain before I start to experiment with the code I am running on my Arduino. My Arduino nano died, and I just replaced it with a new one. (I tried to socket it, but the pins didn't plug into any sockets I have.) The code hangs at the version number. Is there anything going on that the code looks for that it is not seeing to move on? I know how to add print statements to see if I can locate where the problem is, but if someone has seen this, maybe you could save me some time.
Thanks,

Howard

Re: Modular uBitx - "Ex: Harmonics"

Tom, wb6b
 

I agree, we don't want to see anything happen that would kill off Farhan's business and the incomes for the people it helps support. 

It may be that the uBITX has become somewhat of a victim of its own success. Bringing in many folks more expecting the first generation of the uBITX to be perfected, rather than a experimenters/hackers radio to transform, improve and modify.  

When I look over the message board I see 14 years of history for the BITX transceivers. I've gathered from some messages the BITX40/20 of today is much improved over the original design. Did this happen because Farhan went back to his corporate research lab and demanded they improve the design of the transceiver and develop advance proprietary manufacturing technology to produce millions of these at low unit costs? 

These improvements came not from a highly funded corporate lab, but from the Ham Radio operators that embraced the transceivers and worked enthusiastically to make it better. With a radio that's design is accessible, open source and made from parts that are available off the shelf.

The cost of the uBITX is low enough that when Farhan and the many folks that are on the front line, doing the improvements of the uBITX, efforts come together in a new improved board from Farhen, buy another one. Use your current uBITX as a second receiver or do a few mods to use to a a second transceiver on one or two bands; for example. The cost of the uBITX is less than components people upgrade and replace without feeling it is a big issue in many other situations.

The money you will spend to upgrade to a newer uBITX board will be less than many are spending to buy the items they are buying to upgrade their current uBITX transceivers. Not much different from when people would regularly buy a new motherboard for their computer because technology improved.

So, at least for the next generation of the uBITX, it should be able to bolt into the cases people have already build for their radios. 

Tom, wb6b

Re: Modular uBitx - "Ex: Harmonics"

Ashhar Farhan
 

Peeps, Jack, 
I hope that it is clear to everyone that ubitx is an open design. There is no restriction on anyone kitting it and selling products based on it. I would encourage people to try their hand and running it even as a business.
There is no challenge to hf sigs, really. There are more radios to be built and shipped than what hfsigs can ever do. Do go ahead and branch off. Cooperation beats competition each time!
Happy independence day to all my friends who believe in the idea of India! 
73, f. 

On Wed, 15 Aug 2018, 08:23 Jack Purdum via Groups.Io, <jjpurdum=yahoo.com@groups.io> wrote:
This is what we used for the antenna analyzer (QST, Nov., 2017). The only reason I switched away from it was its clock speed. At 16MHz, it just wasn't up to the DSP power we needed.

Jack, W8TEE


On Tuesday, August 14, 2018, 9:57:21 PM EDT, Adrian Waiblinger <vk5zbr@...> wrote:


Keep a option for 630m band too. 
If to hard an output from the Nano to drive the external 630m pa relay / 

Regards 
Adrian 


On 15 Aug 2018, at 10:44 am, Nick VK4PP <nickpullen@...> wrote:

One of these?
Image result for mini mega 2560

Re: Modular uBitx - "Ex: Harmonics"

Jack, W8TEE
 

We ended up using the Teensy 3.6. 1Mb of flash, 256K of SRAM, 4K EEPROM, 62 I/O pins, I2C, RTC, 25 analog pins with 13-bit resolution and 2 analog output pins with 12-bit resolution (Mega has 10-bit). True, the blue pill cost less, but the libraries for the Teensy include most of the Arduino plus many others (FFT and audio). While this screen doesn't show everything:

Inline image

we're using less than 20% of its memory resources. The companion audio board allows us to do some pretty cool stuff, like an 8-band equalizer (plot is on the left):

Inline image

It's not cheap ($30), but is sure brings a lot to the table.

Jack, W8TEE

On Tuesday, August 14, 2018, 9:34:21 PM EDT, Nick VK4PP <nickpullen@...> wrote:


HI All.
Blue Pill looks to be a winner too me, I have 2 laying about actually. VERY cheap, 2x the nano memory. and 32bit.
Should fit the bill perfectly, extra IO too. (26)
Just got to get the Code running on it, Jack?

Cheers
Nick VK4PP

Re: Arduino Hangs

Howard Fidel
 

Yes, and the V4 program I was running before loaded properly.

On 8/14/2018 10:54 PM, Jack Purdum via Groups.Io wrote:
Does it run the sample program named Blink that comes with the IDE?

Jack, W8TEE


On Tuesday, August 14, 2018, 9:45:21 PM EDT, Howard Fidel <sonic1@...> wrote:


I was hopping I could pick someone's brain before I start to experiment with the code I am running on my Arduino. My Arduino nano died, and I just replaced it with a new one. (I tried to socket it, but the pins didn't plug into any sockets I have.) The code hangs at the version number. Is there anything going on that the code looks for that it is not seeing to move on? I know how to add print statements to see if I can locate where the problem is, but if someone has seen this, maybe you could save me some time.
Thanks,

Howard


Re: Modular uBitx - "Ex: Harmonics"

Jack, W8TEE
 

Our goal with the JackAl board is to give enough memory resources and horsepower to let the hacker run wild. We also bring out on the board 12 unused I/O pins to play with. (There are some unused pins "under the board", too.)  The display uses the SPI interface and all of the video processing is on the display card, so it's not sucking cycles away for screen updates.

The critical bottleneck is not the flash memory, it's the SRAM. That were the stack and heap space come from...where you data live. Some Nano users think that, when SRAM is at 75%, there's still a lot of memory available. Not so...that's a compile-time statistic and it's static. Because every function call pushes the stack deeper and deeper at runtime, what looks like a lot of available memory at compile-time results in disaster when the stack crashes into the heap space. With a Nano, all of your data plus the stack must fit in 2K of SRAM. Compare that with 256K of SRAM on the Teensy.

What Allard and Dr. Lee have done with the Nano is truly amazing. Me? I'm not that clever, so I need more elbow room and the Teensy 3.6 makes that a pretty nice environment to work in.

Jack, W8TEE


On Tuesday, August 14, 2018, 9:09:12 PM EDT, Nick VK4PP <nickpullen@...> wrote:


Hi Jack, 
Thanks for the ideas.
99.99x99.99 for board size.
I was thinking maybe the Arduino Nano 2560 Mini Pro, About $13... lots of IO...
But then, with the nano, when using I2C, there are 6 extra IO ports. Its just program memory...
I did want to limit FW changes, I was hoping to only have to change the code relating to LPF and BPF...
I'm thinking 5 LPFs and BPF that are switched in. Builder selects the 5 bands they want to operate on and builds the radio/software for that...

The more I think this over the bigger it becomes.

Farhan has achieved so much already! I would only do stuff if he was OK with it,

Cheers,

Re: Arduino Hangs

Jack, W8TEE
 

Does the "code" hang, or does the "compile process", or does the "upload" hang?

Jack, W8TEE


On Tuesday, August 14, 2018, 11:22:44 PM EDT, Howard Fidel <sonic1@...> wrote:


Yes, and the V4 program I was running before loaded properly.

On 8/14/2018 10:54 PM, Jack Purdum via Groups.Io wrote:
Does it run the sample program named Blink that comes with the IDE?

Jack, W8TEE


On Tuesday, August 14, 2018, 9:45:21 PM EDT, Howard Fidel <sonic1@...> wrote:


I was hopping I could pick someone's brain before I start to experiment with the code I am running on my Arduino. My Arduino nano died, and I just replaced it with a new one. (I tried to socket it, but the pins didn't plug into any sockets I have.) The code hangs at the version number. Is there anything going on that the code looks for that it is not seeing to move on? I know how to add print statements to see if I can locate where the problem is, but if someone has seen this, maybe you could save me some time.
Thanks,

Howard


Re: Arduino Hangs

Howard Fidel
 

As I said, the Arduino starts and displays the version number then hangs.

On 8/14/2018 11:28 PM, Jack Purdum via Groups.Io wrote:
Does the "code" hang, or does the "compile process", or does the "upload" hang?

Jack, W8TEE


On Tuesday, August 14, 2018, 11:22:44 PM EDT, Howard Fidel <sonic1@...> wrote:


Yes, and the V4 program I was running before loaded properly.

On 8/14/2018 10:54 PM, Jack Purdum via Groups.Io wrote:
Does it run the sample program named Blink that comes with the IDE?

Jack, W8TEE


On Tuesday, August 14, 2018, 9:45:21 PM EDT, Howard Fidel <sonic1@...> wrote:


I was hopping I could pick someone's brain before I start to experiment with the code I am running on my Arduino. My Arduino nano died, and I just replaced it with a new one. (I tried to socket it, but the pins didn't plug into any sockets I have.) The code hangs at the version number. Is there anything going on that the code looks for that it is not seeing to move on? I know how to add print statements to see if I can locate where the problem is, but if someone has seen this, maybe you could save me some time.
Thanks,

Howard



Re: Arduino Hangs

Jack, W8TEE
 

If you're using "known" software (e.g., from Dr. Lee or Allard), I would download a "fresh" copy and try again. Also, make sure you are using the latest version of the IDE.

Jack, W8TEE


On Tuesday, August 14, 2018, 11:30:51 PM EDT, Howard Fidel <sonic1@...> wrote:


As I said, the Arduino starts and displays the version number then hangs.

On 8/14/2018 11:28 PM, Jack Purdum via Groups.Io wrote:
Does the "code" hang, or does the "compile process", or does the "upload" hang?

Jack, W8TEE


On Tuesday, August 14, 2018, 11:22:44 PM EDT, Howard Fidel <sonic1@...> wrote:


Yes, and the V4 program I was running before loaded properly.

On 8/14/2018 10:54 PM, Jack Purdum via Groups.Io wrote:
Does it run the sample program named Blink that comes with the IDE?

Jack, W8TEE


On Tuesday, August 14, 2018, 9:45:21 PM EDT, Howard Fidel <sonic1@...> wrote:


I was hopping I could pick someone's brain before I start to experiment with the code I am running on my Arduino. My Arduino nano died, and I just replaced it with a new one. (I tried to socket it, but the pins didn't plug into any sockets I have.) The code hangs at the version number. Is there anything going on that the code looks for that it is not seeing to move on? I know how to add print statements to see if I can locate where the problem is, but if someone has seen this, maybe you could save me some time.
Thanks,

Howard



Re: Arduino Hangs

Howard Fidel
 

Jack:
Thanks. I am running my customized version which I have been using for a few months. I also tried
the original code, but I get the same exact problem. It would be nice to have a flow chart for the code so I can better understand the flow and figure out where to put in test statements to figure it out. It must be some I/O issue I think because the code is good, and I had to rework the Raduino to change the Arduino. Maybe in the morning I will look for possible shorts on the I/O pins, maybe something it looks at?

Howard

On 8/14/2018 11:35 PM, Jack Purdum via Groups.Io wrote:
If you're using "known" software (e.g., from Dr. Lee or Allard), I would download a "fresh" copy and try again. Also, make sure you are using the latest version of the IDE.

Jack, W8TEE


On Tuesday, August 14, 2018, 11:30:51 PM EDT, Howard Fidel <sonic1@...> wrote:


As I said, the Arduino starts and displays the version number then hangs.

On 8/14/2018 11:28 PM, Jack Purdum via Groups.Io wrote:
Does the "code" hang, or does the "compile process", or does the "upload" hang?

Jack, W8TEE


On Tuesday, August 14, 2018, 11:22:44 PM EDT, Howard Fidel <sonic1@...> wrote:


Yes, and the V4 program I was running before loaded properly.

On 8/14/2018 10:54 PM, Jack Purdum via Groups.Io wrote:
Does it run the sample program named Blink that comes with the IDE?

Jack, W8TEE


On Tuesday, August 14, 2018, 9:45:21 PM EDT, Howard Fidel <sonic1@...> wrote:


I was hopping I could pick someone's brain before I start to experiment with the code I am running on my Arduino. My Arduino nano died, and I just replaced it with a new one. (I tried to socket it, but the pins didn't plug into any sockets I have.) The code hangs at the version number. Is there anything going on that the code looks for that it is not seeing to move on? I know how to add print statements to see if I can locate where the problem is, but if someone has seen this, maybe you could save me some time.
Thanks,

Howard




Re: Arduino Hangs

Howard Fidel
 

Also, the hello world sketch works properly. This proves the display and the Arduino are alive. I am guessing the code is looking for a specific state on an I/O pin to move forward and is not finding it. Just need to figure out which pin!

On 8/14/2018 11:45 PM, Howard Fidel wrote:
Jack:
Thanks. I am running my customized version which I have been using for a few months. I also tried
the original code, but I get the same exact problem. It would be nice to have a flow chart for the code so I can better understand the flow and figure out where to put in test statements to figure it out. It must be some I/O issue I think because the code is good, and I had to rework the Raduino to change the Arduino. Maybe in the morning I will look for possible shorts on the I/O pins, maybe something it looks at?

Howard

On 8/14/2018 11:35 PM, Jack Purdum via Groups.Io wrote:
If you're using "known" software (e.g., from Dr. Lee or Allard), I would download a "fresh" copy and try again. Also, make sure you are using the latest version of the IDE.

Jack, W8TEE


On Tuesday, August 14, 2018, 11:30:51 PM EDT, Howard Fidel <sonic1@...> wrote:


As I said, the Arduino starts and displays the version number then hangs.

On 8/14/2018 11:28 PM, Jack Purdum via Groups.Io wrote:
Does the "code" hang, or does the "compile process", or does the "upload" hang?

Jack, W8TEE


On Tuesday, August 14, 2018, 11:22:44 PM EDT, Howard Fidel <sonic1@...> wrote:


Yes, and the V4 program I was running before loaded properly.

On 8/14/2018 10:54 PM, Jack Purdum via Groups.Io wrote:
Does it run the sample program named Blink that comes with the IDE?

Jack, W8TEE


On Tuesday, August 14, 2018, 9:45:21 PM EDT, Howard Fidel <sonic1@...> wrote:


I was hopping I could pick someone's brain before I start to experiment with the code I am running on my Arduino. My Arduino nano died, and I just replaced it with a new one. (I tried to socket it, but the pins didn't plug into any sockets I have.) The code hangs at the version number. Is there anything going on that the code looks for that it is not seeing to move on? I know how to add print statements to see if I can locate where the problem is, but if someone has seen this, maybe you could save me some time.
Thanks,

Howard