Date   
Re: W8TEE TFT/ VFO DISPLAY BOARD BOARD

Jack Purdum <econjack@...>
 

No, that's not what's needed. If you want to read the voltage, you need to pass your supply voltage through a dropping resistor so the voltage doesn't exceed 5V. The end of that resistor is then connected to MYVOLTAGEPIN (A14). The code starting at line 1515 is the block that is responsible for reading that voltage and displaying it on the screen. The Mega should NOT be reading 12V directly on an analog pin. As I said before, this is explain in Rel. 2 of the manual, posted on the group site.

Jack, W8TEE


From: Art Olson <olson339@...>
To: BITX20@groups.io
Sent: Sunday, July 16, 2017 4:50 PM
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD

Jack
 
Yes the power pins for the tft/vfo are connected to my supply
 
art
 
From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jack Purdum via Groups.Io
Sent: Sunday, July 16, 2017 4:37 PM
To: BITX20@groups.io
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD
 
did you connect a line to the voltage pin from your supply?
 
Jack, W8TEE
 

From: Art Olson <olson339@...>
To: BITX20@groups.io
Sent: Sunday, July 16, 2017 4:22 PM
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD
 
Jack
 
So after calculating mydividerconstant and recompiling the voltage still floats from 12.2 down to 2.3-2.7. So for now I just commented it out. However it would be great if I can get it to work correctly. Any thoughts
 
Display voltage from my supply (has a digital readout) 12.0v
Voltage at tp3 – 11.6v
 
art
 
 
From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jack Purdum via Groups.Io
Sent: Sunday, July 16, 2017 11:06 AM
To: BITX20@groups.io
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD
 
Hey, Art...not a problem. The file's only been there a day or two and it will take a while to know it's available. No doubt I'll be posting new versions later on. BTW, my TFT/VFO PCB doesn't have to be used to replace the VFO. It's also a good way to experiment with the Mega 2560 Pro Mini since all of the pins are brought out to header pins, making it easy to attach things for testing. Indeed, you could leave off the support components and use it "stand-alone". I've tried to price it reasonably to encourage you people to experiment with it, to all of our benefit.
 
Jack, W8TEE
 

From: Art Olson <olson339@...>
To: BITX20@groups.io
Sent: Sunday, July 16, 2017 6:56 AM
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD
 
Jack
Thanks. Feel a bit foolish for missing the info in the manual
 
Art

Sent from my iPhone

On Jul 15, 2017, at 10:37 PM, Jack Purdum via Groups.Io <econjack@...> wrote:
Art:
 
I'm sure the flicker is because the voltage pin is floating. The code is written so the display updates every 2 seconds, but only if there is a "real" swing in the voltage. You can see the code in loop(), around line 1515. The way to get this to work on the display is explained in the B40 Assembly Manual (Rev. 2) that is in the Files section. Look for "Determining the Displayed Voltage". If you don't want the voltage display activated, just comment out the code block that starts at 1515.
 
Al Peter helped me fix the "encoder noise" is was hearing. Turns out it was a flat forehead mistake on my part. In the process of separating the PA power source from the TFT power source, I managed to introduce a ground loop. Once that was determined it was fairly easy to fix.
 
I'm back onto the other features I want to add.
 
Jack, W8TEE
 

From: Art Olson via Groups.Io <olsonaj6927@...>
To: BITX20@groups.io
Sent: Saturday, July 15, 2017 5:11 PM
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD
 
Jack

I must have missed this in the build or setup. The voltage continues to change so it must be floating. I have the tft/vfo connected to the bitx40 power so don't think I have a ground problem. Could you resend the detail about the voltage divider 

"If you connect the display voltage pin to your voltage source, it will flash one or two times at power up, but will only update itself if there is a measurable change in the supply voltage. My guess is that you don't have yours tied to either ground or a voltage divider. As a result, the pin is floating which is read as a new voltage which triggers a screen update.I had mine running several hours last night and it never varied enough to update the field". 

art
 
 
 
Virus-free. www.avast.com
 


Re: N8DAH

 

Thanks for the report nice to know how its doing. Been tweaking for about a week I think its finished now.

  73
   David
    N8DAH




From: BITX20@groups.io <BITX20@groups.io> on behalf of Andrew Krause <andrew.krause@...>
Sent: Sunday, July 16, 2017 8:56 PM
To: BITX20@groups.io
Subject: [BITX20] N8DAH
 
Copy 2x3 out of Atlanta, GA. Band is up and down. 
--

Andrew Krause
General Class Amateur Radio License: KM4ZJO
andrew.krause@...
(404) 732-2369



Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

 

Made 5 QSO's all bitx to bitx. Lots of fun hope to work more, anyone else?

 

 

Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

Tom VE3THR
 

well I'm def from all the static crashes tonight! Managed to work KI4PSR TN, W4JLE SC, KC1FSZ MA, W1LY RI, W4DML TN. Heard but couldn't confirm wj6c FL and w0oic IA. Calling it quits 0122 UTC ... next mod is an AGC !!!
73

Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

Ryan Flowers
 

I'll be calling on 7.277 at 7pm PDT from my QTH in Elma WA. Should be good for CA, NV, ID, MO coverage, maybe UT.  
--
Ryan Flowers W7RLF

 

miscdotgeek.com

http://miscdotgeek.com/unofficial-bitx40-faq

http://miscdotgeek.com/bitx40-digital-jt65/ <-- Learn how to go digital on the BITX40

N8DAH

Andrew Krause
 

Copy 2x3 out of Atlanta, GA. Band is up and down. 
--

Andrew Krause
General Class Amateur Radio License: KM4ZJO
andrew.krause@...
(404) 732-2369



Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

 

I had Wj6C but I guess he couldn't hear me well.

 

 I will move down to 7.274 again seems like a few on .277

Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

KC8WBK
 

I heard WJ6C in MI at 5x5

Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

Tom VE3THR
 

Mr.Juan Carlos Berberena Glez BSc.
WJ6C ex/CO6BG

Hi Juan...I'm hearing you up in Ontario Canada about 4x4 at times. Can't hr W1LY at all anymore. Keep looking north!!!
73 Tom

Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

Tom VE3THR
 

nada nada .. probably better luck on 2M simplex being this close. I reconfigured my ocfd for nvis but still nothing. Need a 40m nvis i guess. Perhaps during the day ??? better local prop.

Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

JuanCarlos
 

I I have copied W1LY  s = 5-5     7:10 PM  EST
Cape Coral, Fl
WJ6C



Qrv's, 73's

Mr.Juan Carlos Berberena Glez BSc.
WJ6C ex/CO6BG


“If you have a penny and I have a penny and we exchange pennies, you still have one cent and I still have one cent.  But if you have an idea and I have an idea and we exchange ideas, you now have two ideas and I now have two ideas.” 

2017-07-16 20:26 GMT-04:00 Ion Petroianu <ion.petroianu@...>:

Nothing at all Tom. I could hear Willy talking to you and heard him saying your call sign, but nothing from you. too close. Can you hear me at all?
--
Ion

VA3NOI


Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

Ion Petroianu, VA3NOI
 

Nothing at all Tom. I could hear Willy talking to you and heard him saying your call sign, but nothing from you. too close. Can you hear me at all?
--
Ion

VA3NOI

Re: I don't believe it!

Dexter N Muir
 

Further adventures:

Firstly, no valid signals: the weak sigs I *can* hear, as I tune 'up the band', appear then rise in pitch. This, to me, indicates USB performance: nothing through the filter until above f0, then incresing delta-f (audio) .

Then: tiring of the 'pot-tune' default that jumps from 100Hz steps by pot to 10kHz steps by clock), I've ordered an encoder.
I'd dearly love to 'just connect' a mouse to some pins and have software detect and discern SDA/SCL pulses from the scroll-wheel and left, right (and scroll-wheel-press 'centre') buttons. Right for menu, left for PTT (toggle? to link an output to the PTT with on-screen indication?), centre for future use ...
In lieu of that nirvana, is there a 'howto' or thread here  for adding an encoder?

Further to 'HOWTOs': has anybody collated common 'gotchas' and their workarounds/fixes? and have those instigating mods collated their responses to common issues/solutions? Such would be  valuable  links for a category in the Wiki.

Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

RCC WB5YYM
 

Hearing W1LY from  RI. Fighting a little noise. Heard someone  say they were running 6 watts?

Re: Raduino / LCD display

David Wilcox <Djwilcox01@...>
 

I love it.  I am an expert bodger.

Dave K8WPE

On Jul 16, 2017, at 6:08 PM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote:

bodge:   "make or repair (something) badly or clumsily"
and  "
Bodging is a traditional woodturning craft, using green (unseasoned) wood to make chair legs and other cylindrical parts of chairs."

Bodging could well be a useful skill for the radio amateur.
I nailed both senses of the word years ago when I hacked up my Arc5 transitter
to have a pi-network output using a chunk broomstick for a coil form..

A rather cool word, may have to start using it in lieu of "jerry rigged".

Jerry, KE7ER



On Sun, Jul 16, 2017 at 02:27 pm, David Wilcox wrote:
Pray tell. What is "bodging"?  Is it a requirement for British ham radio?
 

Re: Raduino / LCD display

Jerry Gaffke
 

A fascinating discussion on this in  https://english.stackexchange.com/questions/132868/jury-rigged...jerry-rigged/132919


Merriam-Webster's Collegiate Dictionary
, Eleventh Edition (2003) says that jerry-rigged goes back only to 1959. It speculates that the term is an amalgam of jury-rigged (dating to 1788) and jerry-built (dating to 1869). The jury in jury-rigged doesn't involve a panel of one's peers, however; it means "makeshift" and appears in the Middle English jory saile meaning "makeshift sail." ....   and on and on and on ...

They then move on to explore where "jerry-built" came from.  No conclusions but several interesting leads.
Regardless of origins, I've got plenty of prime examples of "jerry-built" sitting on the desk here in front of me.

Jerry


On Sun, Jul 16, 2017 at 04:49 pm, Dexter N Muir wrote:
Another americanism, a.k.a. Jury-rigged (nautical term, pre-US  Royal Navy, meaning 'rigged' (ship's mast rigging) by a jury (a committee of 'landlubbers' that can't commit itself to a verdict).

Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

Tom VE3THR
 

hey Ion...I'm trying to work you but too close i think...im in Barrie...you hearing my cq at all?

Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

Dr Fred Hambrecht
 

I am running 13 watts to a G5RV at 70 Feet.  I set on top of a 600 foot sand dune here in South Carolina. My ground consists of 120 radials for 40 and 80.

 

v/r

Fred W4JLE

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of John P
Sent: Sunday, July 16, 2017 19:29
To: BITX20@groups.io
Subject: Re: [BITX20] BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

 

On Sun, Jul 16, 2017 at 04:26 pm, RCC WB5YYM wrote:

Wonder how much power?

He's running 40 watts. Had half a contact with him and could hear W4JLE really strong also.
 
--
John - WA2FZW

Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

RCC WB5YYM
 

Sounds like N2CQR. Band must be getting a little longer.

Re: BITX QSO Night, Sunday, July 16, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere

John P
 

On Sun, Jul 16, 2017 at 04:49 pm, KC8WBK wrote:
Wa2fzw, you were just above the noise, but seemed to fade out.  How was my signal on your end?
You were about 4x4, but signal was up and down. Running barefoot 5 or 6 watts here with a hamstick dipole in the attic. You're pretty much off the end of it to boot! Making progress on a mag loop. Maybe another couple of weeks for that.

 
--
John - WA2FZW