Date   

Re: Still Not Working

Arv Evans
 

Curt and David

I get that when the Arduino has not fully initialized the LCD display.  It can be caused
by the RE or EN lead not making good contact.  I have this sometimes when using a
prototype plug-board for temporary layouts.

Is there any back light on in the LCD?  Has it ever worked properly?  Does the tuning
adjustment work? 

I doubt that this is an LCD problem or a problem with software or the Raduino board. 
Most likely it is a wiring situation...but I have been wrong before.

This is what happens when power is applied to the LCD but no subsequent commands
are sent to the display to initialize it for 2 lines by 16 characters.  I made this happen
by lifting the LCD's RE lead from its connector.

There are 2 control lines (RE and EN) along with 4 data lines (D4,5,6,7) sent to
the LCD.  There are also +5V power and ground on the two pins on one end.  The
two pins on the opposite end need +5 through a small resistor and ground for the
backlight LED.  A look at the schematic for the Raduino will show which pins connect
to what between Raduino and the LCD.


It should look something like this, but with the normal Radiuno text on the LCD.


Yes, I know those are poor quality pictures, but its the best I can do with sunlight
streaming into the room. 

The contrast control potentiometer can change whether the boxes are shown as
black or white on the back light background.

Arv
_._



On Fri, Jul 14, 2017 at 2:01 PM, Curt M. <Kc3hjp@...> wrote:
Have any of you guys seen this where the display shows black boxes all the way across the top line of the display?



Mouse encoder?

Dexter N Muir
 

This is just speculation, I haven't tried it myself having not yet delved into the programming to activate it:
Has anyone tried the guts of a PC-mouse as an encoder? I'm thinking a mouse with scroll-wheel (most have a mild 'detent' feel) - perhaps an old(er) ps/2 plug type? Use a ps/2 socket to retain the 'foolproof' pluggability. Disconnect the wiring (maybe leave supply + and -), and wire out the opto's of the wheel. One will be SDA, the other SCL. Perhaps also a/the button/s? one as encoder's 'push' menu/function for step-change etc (I'd use the right for that), the other (left being more intuitive for the more prevalent dexterous :) of the populace) for a convenient PTT... Note: will they pull up or down?
That's 6 wires (if the PS/2's connector pins are all wired through the cable - they might not for a mouse) - SDA, SCL, +5V, 0V, menu and PTT.
If your scrapped mouse is a 'track-ball' type, remove the ball to remove the temptation from the kids to swap it to their old 'junker' PC. Pop in a large nut from the garage/workshop's junk-heap to lend weight if required.
Feedback? Flames? Go to it ...


Re: W8TEE TFT/ VFO DISPLAY BOARD BOARD

Charlie Morrison
 

Hi Mike

 

Thanks for the tips

My DDS has jumpers on J1 J2 and J3, and it’s definitely an AD9850 with 3 rows of 7 pins. I have e-mailed the seller in China to see what can be done. I have limited test equipment, but I’m taking it over the weekend to a fellow amateur who has a spectrum analyser to see what it is doing

 

73 de Charlie GI4FUE

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of K5ESS
Sent: 14 July 2017 23:26
To: BITX20@groups.io
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD

 

Assuming your DDS is the type that has three rows of seven pins be sure that the jumper at J3 is in place.  Also, not that there is an easy fix, but you might check to be sure it’s an AD9850 and not an AD9851.

Mike

K5ESS

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Charlie Morrison
Sent: Friday, July 14, 2017 2:07 PM
To: BITX20@groups.io
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD

 

Hi Matt

 

No, I just compiled the latest version of the code and the default seems to be 7.200. I think I have a problem with the DDS which I got from China, There is no output L

 

73, Charlie GI4FUE

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of DH2LAB
Sent: 14 July 2017 11:39
To: BITX20@groups.io
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD

 

On Sun, Jul 9, 2017 at 01:42 pm, Charlie Morrison wrote:

I have my board built and running with the latest code, however turning the rotary encoder does not move the frequency from 7.200 .....

73, Charlie GI4FUE

Hi Charlie;

did you change the Bandend to 7200 for Europe? If you did so, you have also change line 1417.

73, Matt DH2LAB

 

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Thomas Sharka
 

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Re: W8TEE TFT/ VFO DISPLAY BOARD

DJ4MU
 

Thanks that's the picture i'd been looking for.

Together with the recommendation to use buffered output for the VFO this clarifies wireup a lot.

Thank you very much for the great work Jack


Re: Still Not Working

Vince Vielhaber
 

Sounds like a hosed nano. I'm assuming you have the CH340 driver installed in your computer?

Vince.

On 07/14/2017 06:42 PM, Curt M. wrote:
I have 12v in and 5v out like I would expect to have. I pulled the board
off of the display and connected it to my laptop. The radrino shows up
as USB-Serial CH340 (COM10) when I plug it into my laptop. The short
version of the error that I get while trying to upload is "programmer is
not responding", "attempt 1 of 10: not in sync"

i see the RX light flash occasionally while it trying to upload but it's
not taking the upload.

I've tried to press the reset button on the board and that didn't seem
to make a difference.

Board type in software is set for Arduino Nano


Re: Still Not Working

Curt M.
 

I have 12v in and 5v out like I would expect to have. I pulled the board off of the display and connected it to my laptop. The radrino shows up as USB-Serial CH340 (COM10) when I plug it into my laptop.   The short version of the error that I get while trying to upload is "programmer is not responding", "attempt 1 of 10: not in sync"

i see the RX light flash occasionally while it trying to upload but it's not taking the upload. 

I've tried to press the reset button on the board and that didn't seem to make a difference. 

Board type in software is set for Arduino Nano


Re: W8TEE TFT/ VFO DISPLAY BOARD BOARD

K5ESS
 

Assuming your DDS is the type that has three rows of seven pins be sure that the jumper at J3 is in place.  Also, not that there is an easy fix, but you might check to be sure it’s an AD9850 and not an AD9851.

Mike

K5ESS

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Charlie Morrison
Sent: Friday, July 14, 2017 2:07 PM
To: BITX20@groups.io
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD

 

Hi Matt

 

No, I just compiled the latest version of the code and the default seems to be 7.200. I think I have a problem with the DDS which I got from China, There is no output L

 

73, Charlie GI4FUE

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of DH2LAB
Sent: 14 July 2017 11:39
To: BITX20@groups.io
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD

 

On Sun, Jul 9, 2017 at 01:42 pm, Charlie Morrison wrote:

I have my board built and running with the latest code, however turning the rotary encoder does not move the frequency from 7.200 .....

73, Charlie GI4FUE

Hi Charlie;

did you change the Bandend to 7200 for Europe? If you did so, you have also change line 1417.

73, Matt DH2LAB

 

Virus-free. www.avg.com

 


Re: W8TEE TFT/ VFO DISPLAY BOARD

Art Olson
 

Jack

 

Thanks.

Question:  External power on picture states 7-9 volts. I have been using 12 volts. I assume my assumption is wrong and that a voltage regulator is needed to reduce 12v to 7-9 v for the external power input?

 

 

Art

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jack Purdum via Groups.Io
Sent: Friday, July 14, 2017 4:46 PM
To: BITX20@groups.io
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD

 

All:

 

Thought this might help some of you decipher some of the pins coming out from the board.

 

Inline image

 

Jack, W8TEE

 




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Re: Still Not Working

Al Duncan VE3RRD
 

In the "wire up" section of HFsigs.com, under "alignment of the bitx40" it says to turn RV1 (PA bias) fully clockwise (off) and with an ammeter in the PA power lead (so you are measuring only the current to the PA, not the whole radio), adjust RV1 for 100 ma with PTT activated but no mic audio. After that, RV1 should not be touched. R136 which is usually about mid-point when you get your bitx40, is the only control that should be adjusted to get about 1A on the ammeter when you key the mic and talk loudly into it. This is when transmitting into a proper 50 ohm dummy load, as a poor SWR can mess up your measurements. For example, the wires to the antenna connector should be no longer than a couple of inches long, if a longer distance is needed use 50 ohm mini coax to avoid causing a poor SWR at this point.
Don't "daisy chain" grounds or power connections to different circuits. The 3 grounds and 3 power leads (from Raduino, main circuit board, and PA power) should all go to a common tie point near the DC entry point on your enclosure.
Don't allow wires to lay on top of or up against the underside of the circuit board. All wiring should be kept above, below, or to the the side of the circuit board about a half inch if possible.


Re: Still Not Working

Vince Vielhaber
 

Grab your voltmeters guys. Check the input and output voltages of the 3 term regulator hanging off the side.

Also try unplugging the connectors going in and plugging the Raduino in to your PC.

Vince.

On 07/14/2017 04:14 PM, Curt M. wrote:
Mine was working fine for a week, receiving fine also. I was trying to
adjust the two post to see if maybe turning them to the left would make
a difference in the TX output. In the past I had only turned them to
the right and then back to center and then someone chimed in and said
that they are more or less reverse acting, power goes up when you turn
them to the left. I was using what we've always called a tweeker
screwdriver which is fully insulated except for the tip so I didn't
short anything out. I just happened to look down at the display was
still lit up but it had black boxes across the top row of the display.
I powered it down and plugged into the radrino and it didn't seem to
want to communicate to my laptop anymore. I only tried one time to
communicate with the radrino and then the phone rang so I packed it up
for the night. I may look at it again tonight. The main board still
seems to power up and I can hear the relays clicking when I key up.


Re: W8TEE TFT/ VFO DISPLAY BOARD

Jack Purdum <econjack@...>
 

All:

Thought this might help some of you decipher some of the pins coming out from the board.

Inline image

Jack, W8TEE



Re: Still Not Working

David Woodward
 

exact same here....and as I tuned the display cut off and on.  Going to order another board.

On Jul 14, 2017 4:14 PM, "Curt M." <Kc3hjp@...> wrote:
Mine was working fine for a week, receiving fine also.  I was trying to adjust the two post to see if maybe turning them to the left would make a difference in the TX output.  In the past I had only turned them to the right and then back to center and then someone chimed in and said that they are more or less reverse acting, power goes up when you turn them to the left.  I was using what we've always called a tweeker screwdriver which is fully insulated except for the tip so I didn't short anything out.  I just happened to look down at the display was still lit up but it had black boxes across the top row of the display.  I powered it down and plugged into the radrino and it didn't seem to want to communicate to my laptop anymore.  I only tried one time to communicate with the radrino and then the phone rang so I packed it up for the night.  I may look at it again tonight.  The main board still seems to power up and I can hear the relays clicking when I key up.


Re: Still Not Working

Curt M.
 

Mine was working fine for a week, receiving fine also.  I was trying to adjust the two post to see if maybe turning them to the left would make a difference in the TX output.  In the past I had only turned them to the right and then back to center and then someone chimed in and said that they are more or less reverse acting, power goes up when you turn them to the left.  I was using what we've always called a tweeker screwdriver which is fully insulated except for the tip so I didn't short anything out.  I just happened to look down at the display was still lit up but it had black boxes across the top row of the display.  I powered it down and plugged into the radrino and it didn't seem to want to communicate to my laptop anymore.  I only tried one time to communicate with the radrino and then the phone rang so I packed it up for the night.  I may look at it again tonight.  The main board still seems to power up and I can hear the relays clicking when I key up.


Re: blown LM 386 ?

OZ9AEW <madsen1960@...>
 

error found !!!!!

headphone connected to LM386 pin 5 and there is audio ...... looking in diagram it must be C111 there have to be changed


Re: Still Not Working

David Woodward
 

that's where I am right now... no display.

On Jul 14, 2017 4:01 PM, "Curt M." <Kc3hjp@...> wrote:
Have any of you guys seen this where the display shows black boxes all the way across the top line of the display?



Re: Still Not Working

Curt M.
 

Have any of you guys seen this where the display shows black boxes all the way across the top line of the display?


Re: W8TEE TFT/ VFO DISPLAY BOARD BOARD

Jack Purdum <econjack@...>
 

My bad...and stupid. If you changed the symbolic constants up near line 121 and 122, then use the following at lines 1415-1418


          if (flag == -1) {                   // Too low
            currentFrequency = VFOLOWERFREQUENCYLIMIT;      // Set to min
          } else {
            currentFrequency = VFOUPPERFREQUENCYLIMIT  ;      // Set to max
          }

That's the first stupid thing I've done since lunch...

Jack, W8TEE


From: DH2LAB <dh2lab@...>
To: BITX20@groups.io
Sent: Friday, July 14, 2017 3:35 PM
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD

hmm... I had a blocking Display at 7200 too when I change the bandend to 7200 because I have forgotten to change Line 1417. :-D
The default is 7030 if no EEPROM recorded before.

You maybe check the librarys as described in the TFTVFOManual.

For checking the display, you can compile and run "graphictest_kbv" in the MCUFRIEND_kbv Directory.
Good luck and success! (and maybe a quick delivery of a new DDS...)
73 de Matt, DH2LAB
 



Re: W8TEE TFT/ VFO DISPLAY BOARD BOARD

Jack Purdum <econjack@...>
 

If you have a scope, connect it to OUT2 on the board. You should see a sine wave.

Jack, W8TEE



From: Charlie Morrison <charlie@...>
To: BITX20@groups.io
Sent: Friday, July 14, 2017 3:12 PM
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD

Hi Jack
 
I am using a KY040 connected to the correct pins…I get the feeling I have an issue with the DDS because if I remove it, the code behaves in the same way without it. Unfortunately I do not have another to prove or disprove.
 
73 de Charlie GI4FUE
 
From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jack Purdum via Groups.Io
Sent: 14 July 2017 14:11
To: BITX20@groups.io
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD
 
Usually, failure is because the clock and data lines are not connected to the proper I/O lines on the controller. What type of encoder are you using?
 
Jack, W8TEE
 

From: DH2LAB <dh2lab@...>
To: BITX20@groups.io
Sent: Friday, July 14, 2017 6:38 AM
Subject: Re: [BITX20] W8TEE TFT/ VFO DISPLAY BOARD BOARD
 
On Sun, Jul 9, 2017 at 01:42 pm, Charlie Morrison wrote:

I have my board built and running with the latest code, however turning the rotary encoder does not move the frequency from 7.200 .....

73, Charlie GI4FUE
Hi Charlie;
did you change the Bandend to 7200 for Europe? If you did so, you have also change line 1417.
73, Matt DH2LAB
 
 
Virus-free. www.avast.com



Re: blown LM 386 ?

OZ9AEW <madsen1960@...>
 

I expect speaker is ok, have tested it with a 1,5V batt. and it gives a " blob" 

everything have worked until I made a complete rewiring and connected parts for CW !
I do not use connectors instead I have solder wires from Raduino to Bitx40 board