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Re: Function button inop

 

Assuming you are using the standard raduino sketch:

The function button is only handled by the software when the checkButton() function is uncommented in the sketch.

At the bottom of the sketch, change:

checkCW();
checkTX();
checkButton(); */
doTuning();
delay(50);
}


to:


checkCW();

checkTX();? */

checkButton();
doTuning();
delay(50);
}


73, Allard PE1NWL


Re: Function button inop

Jack Purdum
 

I don't have the code, but normally one reads a button somewhere within the loop() function.?

void loop() {
? ? // whatever code...
? ? if (digitalRead(FBUTTON) == LOW) { ? ?// Could be HIGH, depending on circuit...
? ? ? ? // do something...
? ? }
? ? // probably more code...
}

What are you trying to do by writing to a button?

Jack, W8TEE



From: electronic design via Groups.Io <electronicdesign@...>
To: [email protected]
Sent: Thursday, April 20, 2017 11:19 AM
Subject: Re: [BITX20] Function button inop

Thank's Jack!

I tried with High and Low but no change, no action of the Function button.
Measured the A3 (orange wire) line and it gives 4.9V. CAL button (A2 red wire) it's working.
?I don't know what could be the problem.

73! Adi
YO2LIW?


On Thursday, April 20, 2017 5:18 PM, Jack Purdum via Groups.Io <econjack@...> wrote:


The argument to digitalWrite() is usually HIGH or LOW, not INPUT_PULLUP.

Jack, W8TEE


From: electronic design via Groups.Io <electronicdesign@...>
To: [email protected]
Sent: Thursday, April 20, 2017 7:33 AM
Subject: Re: [BITX20] Function button inop

I have the same problem with Function button on A3 line. Already tried with external 10K pull-up resistor (as in SW line 646) and directly to the ground with:
//configure the function button to use the internal pull-up
? pinMode(FBUTTON, INPUT_PULLUP);
? digitalWrite(FBUTTON, INPUT_PULLUP);

(I've commented previous lines with external pull-up)

Still no action/change when pressing the button.

Any idea?

Thanks!

73! Adi
YO2LIW?

?


On Thursday, April 20, 2017 6:43 AM, Noel <08004us@...> wrote:


Blind Copy & paste got the better of me!
Should be

? //configure the function button to use the internal pull-up
? pinMode(FBUTTON, INPUT_PULLUP);











Re: Function button inop

electronic design
 

Thank's Jack!

I tried with High and Low but no change, no action of the Function button.
Measured the A3 (orange wire) line and it gives 4.9V. CAL button (A2 red wire) it's working.
?I don't know what could be the problem.

73! Adi
YO2LIW?


On Thursday, April 20, 2017 5:18 PM, Jack Purdum via Groups.Io <econjack@...> wrote:


The argument to digitalWrite() is usually HIGH or LOW, not INPUT_PULLUP.

Jack, W8TEE


From: electronic design via Groups.Io <electronicdesign@...>
To: [email protected]
Sent: Thursday, April 20, 2017 7:33 AM
Subject: Re: [BITX20] Function button inop

I have the same problem with Function button on A3 line. Already tried with external 10K pull-up resistor (as in SW line 646) and directly to the ground with:
//configure the function button to use the internal pull-up
? pinMode(FBUTTON, INPUT_PULLUP);
? digitalWrite(FBUTTON, INPUT_PULLUP);

(I've commented previous lines with external pull-up)

Still no action/change when pressing the button.

Any idea?

Thanks!

73! Adi
YO2LIW?

?


On Thursday, April 20, 2017 6:43 AM, Noel <08004us@...> wrote:


Blind Copy & paste got the better of me!
Should be

? //configure the function button to use the internal pull-up
? pinMode(FBUTTON, INPUT_PULLUP);









Re: Subject: Connectors - board to device

 

开云体育


73, Joseph f1pfc



On 19/04/2017 19:33, Baruch Atta wrote:

Subject:?Connectors - board to device
Does anyone know where to get those connectors that connect the pots, jacks, etc. with the board, that were used on the BITX40v3?? Those would be very nice to have for my other projects.?
Thanks
Joe W3TTT


Re: 'Small as possible BITX40'

 

Hello,
I have pictures of what I did with regulator. Moved the regulator.
Added a resistor and Cap too.

Make the cap as large as you have. I used only 3.3 uf, what I had.


My post was #24201

Mike, WA6ISP


Re: Subject: Connectors - board to device

 

Tayda Electronics ...

All sizes. CHEAP.

Heck, they're running a 15% off this weekend, keyword "ARDUINO" ('Til April 24).
I love filling up a cart with hundreds of parts and seeing the total at about $11.

Mike Y, KM5Z
Dallas, Texas


Re: Function button inop

Jack Purdum
 

The argument to digitalWrite() is usually HIGH or LOW, not INPUT_PULLUP.

Jack, W8TEE


From: electronic design via Groups.Io <electronicdesign@...>
To: [email protected]
Sent: Thursday, April 20, 2017 7:33 AM
Subject: Re: [BITX20] Function button inop

I have the same problem with Function button on A3 line. Already tried with external 10K pull-up resistor (as in SW line 646) and directly to the ground with:
//configure the function button to use the internal pull-up
? pinMode(FBUTTON, INPUT_PULLUP);
? digitalWrite(FBUTTON, INPUT_PULLUP);

(I've commented previous lines with external pull-up)

Still no action/change when pressing the button.

Any idea?

Thanks!

73! Adi
YO2LIW?

?


On Thursday, April 20, 2017 6:43 AM, Noel <08004us@...> wrote:


Blind Copy & paste got the better of me!
Should be

? //configure the function button to use the internal pull-up
? pinMode(FBUTTON, INPUT_PULLUP);







Re: C107 missing

 

I ordered two boards, one had C107 installed and one had C107 missing. ?No bits of the 0.1uF C107 rattling around in the box. ?I didn't get an extra 0.1uF surface mount cap in the bag, but some people do. ?Both are still a mystery to me, and I suspect they are related.

C107 is an RF bypass cap, prevents BFO energy from sneaking back into the audio amps for mike and speaker. ?Without C107 the 7.2mhz birdie could get much stronger, as 12mhz BFO energy radiates into the VFO and front end mixer. ?Someday I"ll try pulling my C107 to find out.

Jerry, KE7ER


On Wed, Apr 19, 2017 at 10:00 pm, Raj vu2zap wrote:

To me it looks like? C107 was a casualty of shipping, you can see it was soldered but fallen off.
Not a mystery really!

?


Re: 'Small as possible BITX40'

 

You should be able to see in the pic that the regulator was moved to the back of the board, which gave me some extra room for the Arduino to be moved closer to the edge of the case...and further away from the knobs


Re: PTT pop hack

 

Could have the PTT switch go into the Nano, another pin from the Nano has a wire through a transistor to drive the relays. ?This was in Farhan's code but never implemented, we'll want to drive the relays from the Nano once we have a CW keyer in the Nano anyway.

Then add another pin from the Nano to the LM386 mute pin. ?Use the Nano to sequence things. ?When PTT is pressed, immediately mute the LM386, then wait 5ms before powering the relays. ?When PTT released, immediately power down the relays, then wait 5ms before un-muting the LM386.

Of course, we soon run out of Nano pins. ?If I ever get around to seriously hacking my Bitx40, it will be using a PJRC Teensy 3.2. ?Has lots of extra pins. ?And lots of flash and ram and comm ports and ADC's and MIPS and a DAC.

Jerry, KE7ER



On Thu, Apr 20, 2017 at 04:22 am, Steve Greer wrote:

Is there a way that we can use the mute feature of the lm386 on ptt.? The datasheet says ground I believe pin8 will mute the lm386 and this would eliminate the pop in the ear????

?


Re: Weird magic smoke...

 

Always check potentiometer connections before use,with Ohm meter.

Frank , GM0CSZ / KN6WH


On Mon, Apr 17, 2017 at 5:23 PM, N7PXY <hickspj467@...> wrote:

This subject has come up before. Perhaps it is a candidate for the Users User Manual.

Newbies are used to the wiper being the center tab on a common pot whereas the wiper on a 10 turn 'Bourne' pot is the brass colored one on the end opposite the shaft. Easy mistake to make.

PJH, N7PXY



Re: I think this is absolutely amazing!

 

quote ======
Hi Horatio, ?I am also from Uruguay but living in England and my bitx40 was working ok until a moment of distraction led me to reverse the polarity of the battery with consecuence smoke in the asi cited circuit of the ptt and the fried of D7 once this was repaired the rx part work ok but no tx for now. Will replace the final RF transistors and see. Best regards Fernando G0VUF. 73s.
unquote =======

A solid reminder for all to include? a protection diode or a relay with diode in relay coil circuit? (no reduced voltage)? .
I won't forget that .

Frank , GM0CSZ / KN6WH???????? in IO87AT

On Thu, Apr 20, 2017 at 8:24 AM, Fernando Garcia <ferjanyen@...> wrote:
Hi Horatio, ?I am also from Uruguay but living in England and my bitx40 was working ok until a moment of distraction led me to reverse the polarity of the battery with consecuence smoke in the asi cited circuit of the ptt and the fried of D7 once this was repaired the rx part work ok but no tx for now. Will replace the final RF transistors and see. Best regards Fernando G0VUF. 73s.



Re: 'Small as possible BITX40'

 

That looks sweet! You did a great job!

Roy,
WA0YMH

On Apr 19, 2017 11:04 PM, <george.ellis@...> wrote:

This is as small as I could get it


Re: 'Small as possible BITX40'

 

Regulator on the Raduino can be mounted on the other side of the board, fits perfectly: ?Clip the 3 leads close to the board. ?Unsolder the stubs remaining in the board one by one and pull them out with a needle nose pliers. ?Use solder wick to clean out the holes, maybe blow through them. ?Mount the regulator on the other side of the board, it can lay flat to the board and could even solder the tab to the copper ground plane if you want something of a heat sink. ? ?

You don't really have to clean the solder out of the three holes, sufficient to just lay the leads flat on top of the holes and solder them into place.

Jerry, KE7ER



On Thu, Apr 20, 2017 at 06:26 am, <statefarmjeff@...> wrote:

Does someone have instructions on how to get that regulator moved out of the way so I can fit this thing in a small case like this??

?


Re: 'Small as possible BITX40'

 

quote ===
I'm making a set of
antennas for it, including a DF loop.
unquote ====

Is it a DF loop for 40 m or 80 m (most likely)??? Any design reference ?

TIA

Frank , GM0CSZ / KN6WH

On Thu, Apr 20, 2017 at 6:47 AM, Steve Wright <SteveWrightNZ@...> wrote:
On 20/04/17 17:33, Simon Rumble wrote:
> Very nice! I've been inspired by this to find a completely waterproof
> box and make something truly portable, including end-fed tuner and
> batteries.

That's what I'm making - a tough bush radio.? It's easy to cut up sheet
aluminium on the table saw and braze it into a box.? I'm making a set of
antennas for it, including a DF loop.

Steve






Re: 'Small as possible BITX40'

 

Looks great!

This is my first build of any kind.? Does someone have instructions on how to get that regulator moved out of the way so I can fit this thing in a small case like this??


Tx.?


Re: PTT pop hack

 

Very annoying pop in the audio. It is even worse with the Motorola mic I am using.

If I turn the audio volume control to minimum then the pop almost disappears. That tells me that source is the preamp stage.

I tried a small cube relay to disconnect the speaker but the relay does not seem to be fast enough.

The amp cap charge remains long enough to amplify the pop. Muting the volume control with a relay/2n7000 makes it worse!

I gave up, I am going to build an amp with TDA2822 and see if that is any better next week! I hope that it will be a "bobs your uncle moment"!
There are some ready boards on the bay thats worth experimenting with. Some even come with a volume control for a few bucks.

Raj

At 20/04/2017, you wrote:
Simple brute force solution use a small relay to disconnect the speaker on tx keep a 1k resistor as a load and to keep the output capacitor charged pop should go

Sent from my iPhone

On 20 Apr 2017, at 12:40, Allard PE1NWL <pe1nwl@...> wrote:

Yes I tried this already, but I still got a pop each time I connected the
pin to ground...

73, Allard PE1NWL

On Thu, April 20, 2017 13:22, Steve Greer wrote:
Is there a way that we can use the mute feature of the lm386 on ptt. The
datasheet says ground I believe pin8 will mute the lm386 and this would
eliminate the pop in the ear????


Re: Subject: Connectors - board to device

Baruch Atta
 

?"JST XH 2.5mm ..."
Yes, I did that.? Thanks for the info.? Just simply knowing what they are called really helps when doing a search.?
thanks
Joe W3TTT

On Wed, Apr 19, 2017 at 11:08 PM, n0bhc via Groups.Io <n0bhc@...> wrote:
This might work for you.? Run a search on Ebay for: "JST XH 2.5mm 2 3 4Pin Male and Female Housing Connector"
?
You will probably find a lifetime supply for $5.00 :-)
?
73
Bob? N0BHC
?
In a message dated 4/19/2017 12:33:48 P.M. Central Daylight Time, baruchatta@... writes:
Subject:?Connectors - board to device
Does anyone know where to get those connectors that connect the pots, jacks, etc. with the board, that were used on the BITX40v3?? Those would be very nice to have for my other projects.?
Thanks
Joe W3TTT



Re: PTT pop hack

Engineer
 

Simple brute force solution use a small relay to disconnect the speaker on tx keep a 1k resistor as a load and to keep the output capacitor charged pop should go

Sent from my iPhone

On 20 Apr 2017, at 12:40, Allard PE1NWL <pe1nwl@...> wrote:

Yes I tried this already, but I still got a pop each time I connected the
pin to ground...

73, Allard PE1NWL

On Thu, April 20, 2017 13:22, Steve Greer wrote:
Is there a way that we can use the mute feature of the lm386 on ptt. The
datasheet says ground I believe pin8 will mute the lm386 and this would
eliminate the pop in the ear????



Re: PTT pop hack

 

Yes I tried this already, but I still got a pop each time I connected the
pin to ground...

73, Allard PE1NWL

On Thu, April 20, 2017 13:22, Steve Greer wrote:
Is there a way that we can use the mute feature of the lm386 on ptt.?? The
datasheet says ground I believe pin8 will mute the lm386 and this would
eliminate the pop in the ear????