Re: Handheld Mic w/ PTT for BITX40
Shields presumably
on at least some of those 4 wires in the Baofeng cable? Some
of the radio connections are likely grounds. link those up and
you should have enough.
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I cut off the end of my baofeng speaker mic off and
got 4 wires.? Does anyone have any ideas how I could connect this
to the radio?? The radio needs 2 leads for PTT, 2 for speaker, and
2 for the mic.
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Re: Handheld Mic w/ PTT for BITX40
Speakermic wiring shown here:
It looks as if one wire is common to PTT and mic, then one for
PTT "active" an a mic high. However, no idea as to wire colors.
toggle quoted message
Show quoted text
I cut off the end of my baofeng speaker mic off and
got 4 wires.? Does anyone have any ideas how I could connect this
to the radio?? The radio needs 2 leads for PTT, 2 for speaker, and
2 for the mic.
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Re: Handheld Mic w/ PTT for BITX40
I cut off the end of my baofeng speaker mic off and got 4 wires.? Does anyone have any ideas how I could connect this to the radio?? The radio needs 2 leads for PTT, 2 for speaker, and 2 for the mic.
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Re: is there a step by step guide to raduino programming anywhere
Thanks Jack, I was able to borrow a copy from my work library. will be some light reading on the train to and from work for a while.
--
Mike VK3XL
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Re: The harmonics are out to play
Don,
A bandpass for 40M will not be sharp enough to rapidly chop off after 7.2 MHz.
There are many stations images between 7.1 and 7.2 that make a mess of the band on BITX40
I am going to try a filter for the VFO or a hack to see if I can get rid of 19-20 Mhz harmonics.
73 Raj
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At 14-03-2017, you wrote: Raj: How about an EXTERNAL filter? If that's the only station troubling you then you could trap it out. A bandpass filter for just the 40m amateur band would clean up your signal even further and eliminate all the rest. Even a sharp cut-off low pass on the antenna side might do the trick. -Don, ND6T
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That was mentioned in an older post, and I was repeating it. ?I agree, not sure what the issue would be. ?
On Tue, Mar 14, 2017 at 08:02 pm, Jack Purdum wrote: It is important that the Arduino Nano only see power from the USB cable when connecting it to the computer.?
Where did you get this from, Jerry? I've never had a problem with a Vin and USB powered at the same time. Perhaps I missed something somewhere.
?
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Re: Bitx40 another Raduino(?) problem
Are the RX/TX LED's flashing when you try to upload a sketch to the Nano? If not, try installing the device drivers that are distributed with the Arduino IDE. The files are in the drivers directory off the root IDE directory. Also, make sure you select the Nano from the IDE's boards list (i.e., Tools --> Boards) and that you have the correct port selected (Tools --> Port). You can also use the control panel to see that the correct COM port is active.
Jack, W8TEE
From: Larry Smith <815cpu@...>
To: [email protected]
Sent: Tuesday, March 14, 2017 9:34 PM
Subject: Re: [BITX20] Bitx40 another Raduino(?) problem
do you have display on the LCD?? Clk2 is the output to the main board.? I think if ?signal generator set to MHz 3 v PP. It should at least allow antenna noise to be heard in the audio output to hear the filters. ?i have had a new BITX40v3 for a week now and it hasn't not worked.? The rArduino appears not to have been factory downloaded.? Ergo the si5351 library is a problem.? I've given up on trying to down load the program.? I can't down load ?the Blink example Sketch. Maybe the rAdriuno needs to be downloaded off the board.? rArduino on inline sockets would be a plus for experiments/maintenance. Maybe someone has a free Nano on its own and try a down load. My LCD display is 16 blocks of nothing. re no program control.si5351. ? Only audio noise from the speaker. 5 volt regulator gets finger burn hot.? Maybe the back light is drawing excessive current. ? Maybe the regulator getting so hot it's near thermal avalanche and generating noise.? At minimum heat sink is needed for sure. ? The LCD can be easily separated from the rArduino PCB.? This would allow the rArduino board to mount flat on stand-offs and allow the heat sink applied to the chassis box or a decent heat sink. ? Character contrast trimmer would be easy to adjust. Power input should be fused.? A separate power supply to be separate from being inside with the main board. That's my input for what it's worth.? Good Luck. and standing by. 73 Larry
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It is important that the Arduino Nano only see power from the USB cable when connecting it to the computer.?
Where did you get this from, Jerry? I've never had a problem with a Vin and USB powered at the same time. Perhaps I missed something somewhere.
Jack, W8TEE
From: Jerry Gaffke via Groups.Io <jgaffke@...>
To: [email protected]
Sent: Tuesday, March 14, 2017 9:39 PM
Subject: Re: [BITX20] Raduino
It is important that the Arduino Nano only see power from the USB cable when connecting it to the computer. ?I usually unplug the Arduino Nano board and LCD display (they are soldered together) from the Raduino board (has all the wires off to the Bitx40 main board) when updating firmware. ?But probably ok to just remove power from the radio, then plug the USB cable into the Nano.
(Raduino not be powered from the Bitx40 12v power supply when connecting the Raduino to the? On Tue, Mar 14, 2017 at 04:44 pm, College Professor Simon Thompson wrote:
Do I need to have the LCD connected to the Raduino when I am connecting to the computer? ?
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From: Michael Davis <maddmd818@...>
To: [email protected]
Sent: Tuesday, March 14, 2017 10:01 PM
Subject: Re: [BITX20] Fast tuning buttons
Thanks Jack, by end stops on the pot, I assume zero resistance (or close to zero) as an end "stop". There isn't really any physical stop connection at either end of rotation. I am assuming that zero or close to zero resistance to the yellow wire feed will fast tune one way and close to zero to the green will tune the other way. Do you concur? I know it seems too simple, but it makes sense to me.
Sent from Mike's iPad WA1MAD
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Re: is there a step by step guide to raduino programming anywhere
This is totally biased, but you might find the Beginning C for Arduino, 2nd Ed. useful. Go to Amazon and search that title then click on the cover and read the Table of Contents. Then go to the reviews and read those. There are more reviews on the 1st edition, but the second edition is a better book.
Jack, W8TEE
From: vk3xl via Groups.Io <vk3xl@...>
To: [email protected]
Sent: Tuesday, March 14, 2017 10:26 PM
Subject: [BITX20] is there a step by step guide to raduino programming anywhere
As a complete novice at Arduino / Raduino programming I need some assistance in getting started with reprogramming my Raduino to cover 80 meters rather than 40 meters.
I have downloaded the Arduino IDE and have got a couple of Arduino clones to play with. I have managed to get the various blinking led exercises to work ok and have a basic understanding of programming.
What I need is a step by step guide to be able to upload a new sketch to the raduino where the only thing that has been changed is the frequency range. I believe that I need to have the Si5351 library installed in the IDE and that the version of the library needs to be v1.1.? rather than the v2.? that is current now. (not sure how this is done, but should be able to work it out)? I have copies of the sketch for the raduino from Ashaar's guithub page etc. Any guidance greatly appreciated.
--
Mike VK3XL
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I have no problem uploading sketches into a Nano via USB while it’s also powered from an external power supply .? External power (5V) supplies power to Nano, LCD, and AD9850 ?or Adafruit SI5351 board. Mike K5ESS ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Ben Kuhn
Sent: Tuesday, March 14, 2017 9:25 PM
To: [email protected]
Subject: Re: [BITX20] Raduino ? Out of curiosity, why?? I use the Arduino Mega on my 3d printer with both USB and external power all the time.? Is there something different in the Nano that would cause problems? I ask because one project I have had in mind but haven't really begun to think about too much yet is to implement basic rig control for operating digital modes more easily. ? On Mar 14, 2017 8:39 PM, "Jerry Gaffke via Groups.Io" <jgaffke=[email protected]> wrote: It is important that the Arduino Nano only see power from the USB cable when connecting it to the computer.? I usually unplug the Arduino Nano board and LCD display (they are soldered together) from the Raduino board (has all the wires off to the Bitx40 main board) when updating firmware.? But probably ok to just remove power from the radio, then plug the USB cable into the Nano. ? (Raduino not be powered from the Bitx40 12v power supply when connecting the Raduino to the? On Tue, Mar 14, 2017 at 04:44 pm, College Professor Simon Thompson wrote: Do I need to have the LCD connected to the Raduino when I am connecting to the computer?
?
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is there a step by step guide to raduino programming anywhere
As a complete novice at Arduino / Raduino programming I need some assistance in getting started with reprogramming my Raduino to cover 80 meters rather than 40 meters.
I have downloaded the Arduino IDE and have got a couple of Arduino clones to play with. I have managed to get the various blinking led exercises to work ok and have a basic understanding of programming.
What I need is a step by step guide to be able to upload a new sketch to the raduino where the only thing that has been changed is the frequency range. I believe that I need to have the Si5351 library installed in the IDE and that the version of the library needs to be v1.1.? rather than the v2.? that is current now. (not sure how this is done, but should be able to work it out)? I have copies of the sketch for the raduino from Ashaar's guithub page etc. Any guidance greatly appreciated.
--
Mike VK3XL
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Out of curiosity, why?? I use the Arduino Mega on my 3d printer with both USB and external power all the time.? Is there something different in the Nano that would cause problems?
I ask because one project I have had in mind but haven't really begun to think about too much yet is to implement basic rig control for operating digital modes more easily.
Ben - KE0KKM
On Mar 14, 2017 8:39 PM, "Jerry Gaffke via Groups.Io" <jgaffke= [email protected]> wrote: It is important that the Arduino Nano only see power from the USB cable when connecting it to the computer.? I usually unplug the Arduino Nano board and LCD display (they are soldered together) from the Raduino board (has all the wires off to the Bitx40 main board) when updating firmware.? But probably ok to just remove power from the radio, then plug the USB cable into the Nano.
(Raduino not be powered from the Bitx40 12v power supply when connecting the Raduino to the? On Tue, Mar 14, 2017 at 04:44 pm, College Professor Simon Thompson wrote:
Do I need to have the LCD connected to the Raduino when I am connecting to the computer? ?
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Re: Bitx40 another Raduino(?) problem
Hi Jerry, didn't mean to steal the glory, just had a little bit of time on my hands. Took the xtal off of the board and still have 2.105 MHz where it should be 10.000 (or 1.055 instead of 5.000), with no xtal at the raduino pcb. I don't have any 25 or 27 MHz to replace and make sure that it will solve it. I'll check tomorrow at work if we have any spare 25 MHz, if not - digikey.ca might help ;) 73, VE6GPO
On Tue, Mar 14, 2017 at 06:33 pm, Jerry Gaffke wrote:
Very good to know! ?This is a strong indication that everyone with a Raduino emitting 1mhz has a broken 25mhz crystal. ?Goran had earlier reported 1mhz coming out of his Raduino Si5351 instead of 4.8mhz, and that he could not see 25mhz at the Si5351's crystal. ?I have found crystals in general to be relatively sensitive to high G shocks, such as when dropping a board one meter to a concrete floor. When I get back to my bench in a few days, I'll try powering up the Raduino with that crystal disabled, see if the output of the Raduino goes to around 1mhz. ? Unless somebody else steals all the glory first. ?(Please do!) ? Probably ok to just short one side of that crystal to ground. ?The data sheet does not indicate which pin drives the crystal and which receives (both pins XA and XB are called out as "input"). ?So I'll short the pin that has the smaller 25mhz signal, that's almost certainly an Si5331 pin that is input only. Jerry, KE7ER
On Tue, Mar 14, 2017 at 05:46 pm, Goran VE6GPO wrote:
I just tried that on Adafruit's 5351 module, and yes, you can see the 25 MHz. I was looking at the output of 5351 with one channel set to 10 MHz an triggering there. Output was 3.something Vpp. While doing that, probed both side of xtal with second channel, x10 probe, seeing 25 MHz of almost-sine wave, ~1 Vpp on one side of the xtal, ~700 mVpp on the other side. Output signal wasn't disturbed at all while doing this. Tried loading with x1, 25 MHz dropped to <300 mVpp, but output was still going on. Cheers, Goran VE6GPO
?
?
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Re: Bitx40 another Raduino(?) problem
I agree. ? ? Problem my kit did not come with the coil.? I would have deduced that trouble shooting idea good..if only I had that coil like shown in most videos. i even pulled P14 connector cause there's dremel ?tool grove that migrates under the P14 connector.? Grove isolates the pin 2 ?Clk 2 from the 5351 from the ground plane Artwork problem. ?i pulled it because it was dirty with copper dust. If I get this to work I'll remove the extra wires that carry the unused Clks 1 and 0.? Might install a length of RG174 to carry CLk 2. Maybe a shield wall to separate/isolate the rArduino form the main PCB. 73 standing by and tuning Hi
On Tue, Mar 14, 2017 at 8:48 PM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote: Sounds like serious trouble on the Raduino.? My regulator runs on 12.0 volts, is getting warm but no so hot it would come anywhere near burning a finger.? Those regulators are generally designed to shut down when they get too hot, then come back on once they cool down.? I doubt you have an appropriate VFO signal from Raduino into the Bitx40.? You might try the analog vfo instead (install L4 and the 10k tuning pot), see if the Bitx40 works ok without the Raduino. On Tue, Mar 14, 2017 at 06:34 pm, Larry Smith wrote:
5 volt regulator gets finger burn hot.? Maybe the back light is drawing excessive current. ? Maybe the regulator getting so hot it's near thermal avalanche and generating noise.
?
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Thanks Jack, by end stops on the pot, I assume zero resistance (or close to zero) as an end "stop". There isn't really any physical stop connection at either end of rotation. I am assuming that zero or close to zero resistance to the yellow wire feed will fast tune one way and close to zero to the green will tune the other way. Do you concur? I know it seems too simple, but it makes sense to me.
Sent from Mike's iPad WA1MAD
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It would nice to have the Nano completely off board.? Any one with spare Nano could try the stand alone down load.? IE I tried the simple Blink Sketch and it did not like it.? Only power "ON" board is illuminated.? Never see the RX/TX leds blink.? I Wonder if the Nano is program first then soldered into the si5351 pcb.? Looks to the CLK2 (MHz) is the si5351 is used. IE: ? 25 MHz - 5 MHz = 7 MHz (40 meters). 73 standing by
On Tue, Mar 14, 2017 at 8:39 PM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote: It is important that the Arduino Nano only see power from the USB cable when connecting it to the computer.? I usually unplug the Arduino Nano board and LCD display (they are soldered together) from the Raduino board (has all the wires off to the Bitx40 main board) when updating firmware.? But probably ok to just remove power from the radio, then plug the USB cable into the Nano.
(Raduino not be powered from the Bitx40 12v power supply when connecting the Raduino to the? On Tue, Mar 14, 2017 at 04:44 pm, College Professor Simon Thompson wrote:
Do I need to have the LCD connected to the Raduino when I am connecting to the computer? ?
|
Re: Bitx40 another Raduino(?) problem
Sounds like serious trouble on the Raduino. ?My regulator runs on 12.0 volts, is getting warm but no so hot it would come anywhere near burning a finger. ?Those regulators are generally designed to shut down when they get too hot, then come back on once they cool down. ?I doubt you have an appropriate VFO signal from Raduino into the Bitx40. ?You might try the analog vfo instead (install L4 and the 10k tuning pot), see if the Bitx40 works ok without the Raduino.
On Tue, Mar 14, 2017 at 06:34 pm, Larry Smith wrote:
5 volt regulator gets finger burn hot.? Maybe the back light is drawing excessive current. ? Maybe the regulator getting so hot it's near thermal avalanche and generating noise.
?
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It is important that the Arduino Nano only see power from the USB cable when connecting it to the computer. ?I usually unplug the Arduino Nano board and LCD display (they are soldered together) from the Raduino board (has all the wires off to the Bitx40 main board) when updating firmware. ?But probably ok to just remove power from the radio, then plug the USB cable into the Nano.
(Raduino not be powered from the Bitx40 12v power supply when connecting the Raduino to the?
On Tue, Mar 14, 2017 at 04:44 pm, College Professor Simon Thompson wrote:
Do I need to have the LCD connected to the Raduino when I am connecting to the computer? ?
|
Re: Bitx40 another Raduino(?) problem
do you have display on the LCD?? Clk2 is the output to the main board.? I think if ?signal generator set to MHz 3 v PP. It should at least allow antenna noise to be heard in the audio output to hear the filters. ?i have had a new BITX40v3 for a week now and it hasn't not worked.? The rArduino appears not to have been factory downloaded.? Ergo the si5351 library is a problem.? I've given up on trying to down load the program.? I can't down load ?the Blink example Sketch. Maybe the rAdriuno needs to be downloaded off the board.? rArduino on inline sockets would be a plus for experiments/maintenance. Maybe someone has a free Nano on its own and try a down load. My LCD display is 16 blocks of nothing. re no program control.si5351. ? Only audio noise from the speaker. 5 volt regulator gets finger burn hot.? Maybe the back light is drawing excessive current. ? Maybe the regulator getting so hot it's near thermal avalanche and generating noise.? At minimum heat sink is needed for sure. ? The LCD can be easily separated from the rArduino PCB.? This would allow the rArduino board to mount flat on stand-offs and allow the heat sink applied to the chassis box or a decent heat sink. ? Character contrast trimmer would be easy to adjust. Power input should be fused.? A separate power supply to be separate from being inside with the main board. That's my input for what it's worth.? Good Luck. and standing by. 73 Larry
On Tue, Mar 14, 2017 at 7:46 PM, Goran VE6GPO <goran.poprzen@...> wrote: Hi Jerry, I just tried that on Adafruit's 5351 module, and yes, you can see the 25 MHz. I was looking at the output of 5351 with one channel set to 10 MHz an triggering there. Output was 3.something Vpp. While doing that, probed both side of xtal with second channel, x10 probe, seeing 25 MHz of almost-sine wave, ~1 Vpp on one side of the xtal, ~700 mVpp on the other side. Output signal wasn't disturbed at all while doing this. Tried loading with x1, 25 MHz dropped to <300 mVpp, but output was still going on. Cheers, Goran VE6GPO
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Raj vu2zap
Goran VE6GPO