What¡¯s the RTC for here? A display clock or keeping accurate time for WSPR/FT8 or some other digital mode?
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On Thu, Dec 21, 2017 at 12:15 PM DaveC < murzim@...> wrote: Jack
Thanks. One more question, where in the code do I change the clock update time.
Dave
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
Ok. I can do that. There are only a couple hundred pieces on that board and I have a 3 day weekend.
I won't post about it until I've finished my assessment or run into problems. But, I feel reasonably comfortable doing this.
If I still can't figure it out, I'll ship it to Gordon on Tuesday. But, if I can just meter the whole board then I'd rather do that first. Those parts are dirt cheap. I can always order double from mouser just in case there's something causing them to blow.
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Re: CW Key/Keyer/paddle idea
I bought a 4x20 display that's I2C and was really surprised that what they
used to convert the parallel to I2C was a PCF8574, an 8 bit i/o expander.
I use the PCF8575, the 16 bit version, when I need more DIO pins.
Vince.
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Probably the LCD isn?€?t i2c capable. There are with i2c, or use a cheap
available converter.
Ron ?€¡° PA3FAT
Van: [email protected] [mailto:[email protected]] Namens Jack Purdum via
Groups.Io
Verzonden: 21 December, 2017 17:31
Aan: [email protected]
Onderwerp: [BITX20] CW Key/Keyer/paddle idea
All:
The way Ashhar is using a single ??C I/O line to key the ??BITX is pretty
clever, but some people are having issues with different
keys/keyers/paddles. I think the main reason he used a voltage divider for
key sensing is because he was running out of I/O pins on the Nano. Looking
at the code, the LCD display uses the standard LiquidCrystal library,
which eats up 6 I/O pins. I know Allard has Rel. 2.0 of the software
going, but I'm wondering if A4 and A5 could be moved and the I2C interface
used for the LCD display. That would free up enough lines for the keyer to
dedicate a dit and dah pin for each. Quite honestly, I have not looked at
Allard's code yet (too many alligators), so I'm just tossing this out
there for discussion.
Jack, W8TEE
--
Michigan VHF Corp.
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Jack
Thanks. One more question, where in the code do I change the clock update time.
Dave
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
I don¡¯t know if you make much money from the sale of one Kindle book, but I just bought a copy as a ¡°Thank you¡± for your help in this thread - and the forum in general.?
--
Karl Heinz - K5KHK
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
Yes you can.
?
¡¡and if you are... please the transistors around the 12Mhz Christal¡..
?
If you have a cheap general coverage shortwave receiver capable of 5/7/12Mhz use this to examine the signals available.
?
?
?
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Van: [email protected] [mailto:[email protected]]
Namens tausciam@...
Verzonden: 21 December, 2017 18:00
Aan: [email protected]
Onderwerp: Re: [BITX20] Help! I think I may have just ruined my 9 year old's Chanukah
?
On Thu, Dec 21, 2017 at 08:44 am, Gordon Gibby wrote:
At some point he's going feel more comfortable after this unpleasant it-didnt-work!-shock? and he'll start to BELIEVE us when we tell him tricks to use his receiver to test portions of the circuit --- but that may be a lot easier when he's
doing it with a $59 general purpose receiver.....than with a multi-hundred-dollar-micro-circuitry-Yaesu product!!!!?
Wait... so instead of doing these "tricks", could I just run through with my meter and test every resistor, capacitor, diode and transistor on the board?
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Where goes the PTT switch?
I see the Orange, #5 wire from the Microphone socket to the Raduino and the violet#1 and blue #2, also - but no switch.? Maybe it's in the microphone wires, that aren't shown?? If so, please tell me which wire.
I guess this is common knowledge because no one else has had this problem.? One other problem is about the pinout of the TRS sockets.I don't know which pin is the tip or ring or sleeve. I? followed the photos
but then I think someone mentioned that the text directions are different than the photo.? I'm confused. Thank you for your help.
My sincere gratitude to Ashhar for this miracle. I consider this the Holy Grail of QRP rigs!
Tnx and 73,? larry KA7ILH
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
On Thu, Dec 21, 2017 at 08:44 am, Gordon Gibby wrote:
At some point he's going feel more comfortable after this unpleasant it-didnt-work!-shock? and he'll start to BELIEVE us when we tell him tricks to use his receiver to test portions of the circuit --- but that may be a lot easier when he's doing it with a $59 general purpose receiver.....than with a multi-hundred-dollar-micro-circuitry-Yaesu product!!!!?
Wait... so instead of doing these "tricks", could I just run through with my meter and test every resistor, capacitor, diode and transistor on the board?
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
Gordon,?
Shoot me a line if you want to expose that book to crowd of hams, right next to some of those world famous ones¡.
Craig KM4YEC at gmail
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On Dec 21, 2017, at 11:44 AM, Gordon Gibby < ggibby@...> wrote:
OK, so now even more pieces fall into place
I couldn't figure out how an extra class licensee was having such trouble finding parts on a board?? So now it makes more sense.? Everyone has strengths and weaknesses.? ?Tausciam learns SO FAST that he went from tech to extra in 3 months.....and didn't quite get basic busted circuit fixin' class.? ? So....he's getting it now!? ?Give this fellow another three months at the rate HE is going and he may be DESIGNING radios!
At some point he's going feel more comfortable after this unpleasant it-didnt-work!-shock? and he'll start to BELIEVE us when we tell him tricks to use his receiver to test portions of the circuit --- but that may be a lot easier when he's doing it with a $59 general purpose receiver.....than with a multi-hundred-dollar-micro-circuitry-Yaesu product!!!!? ? ?
Everyone comes into ham radio with different strengths and weaknesses, and not everyone puts in the effort to "round out" their skills.
Apparently Purdum is a world famous C etc coder.? ?I'm not world famous but I did write the following book to try and help folks gain some skills:
?
On Thu, Dec 21, 2017 at 08:08 am, Vince Vielhaber wrote: I figured as much which is why I didn't push disconnecting the antenna. Yes. I know in theory that it doesn't matter if you have anything at all connected as long as you don't key up. In theory... but, at this point, I wouldn't trust theory. I may be a walking time bomb waiting to blow another piece of electronics.
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Re: CW Key/Keyer/paddle idea
Probably the LCD isn¡¯t i2c capable. There are with i2c, or use a cheap available converter.
?
Ron ¨C PA3FAT
?
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Van: [email protected] [mailto:[email protected]]
Namens Jack Purdum via Groups.Io
Verzonden: 21 December, 2017 17:31
Aan: [email protected]
Onderwerp: [BITX20] CW Key/Keyer/paddle idea
?
All:
The way Ashhar is using a single ?C I/O line to key the ?BITX is pretty clever, but some people are having issues with different keys/keyers/paddles. I think the main reason he used a voltage divider for key sensing is because he was running out of I/O pins
on the Nano. Looking at the code, the LCD display uses the standard LiquidCrystal library, which eats up 6 I/O pins. I know Allard has Rel. 2.0 of the software going, but I'm wondering if A4 and A5 could be moved and the I2C interface used for the LCD display.
That would free up enough lines for the keyer to dedicate a dit and dah pin for each. Quite honestly, I have not looked at Allard's code yet (too many alligators), so I'm just tossing this out there for discussion.
Jack, W8TEE
|
Re: Help! I think I may have just ruined my 9 year old's Chanukah
OK, so now even more pieces fall into place
I couldn't figure out how an extra class licensee was having such trouble finding parts on a board?? So now it makes more sense.? Everyone has strengths and weaknesses.? ?Tausciam learns SO FAST that he went from tech to extra in 3 months.....and didn't
quite get basic busted circuit fixin' class.? ? So....he's getting it now!? ?Give this fellow another three months at the rate HE is going and he may be DESIGNING radios!
At some point he's going feel more comfortable after this unpleasant it-didnt-work!-shock? and he'll start to BELIEVE us when we tell him tricks to use his receiver to test portions of the circuit --- but that may be a lot easier when he's doing it with
a $59 general purpose receiver.....than with a multi-hundred-dollar-micro-circuitry-Yaesu product!!!!? ? ?
Everyone comes into ham radio with different strengths and weaknesses, and not everyone puts in the effort to "round out" their skills.
Apparently Purdum is a world famous C etc coder.? ?I'm not world famous but I did write the following book to try and help folks gain some skills:
?
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Show quoted text
On Thu, Dec 21, 2017 at 08:08 am, Vince Vielhaber wrote:
I figured as much which is why I didn't push disconnecting the antenna.
Yes. I know in theory that it doesn't matter if you have anything at all connected as long as you don't key up. In theory... but, at this point, I wouldn't trust theory. I may be a walking time bomb waiting to blow another piece of electronics.
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I have one of the cases, they are just peel off stickers.
From: Doug W <KD9CYF@...>
To: [email protected]
Sent: Thursday, December 21, 2017 8:27 AM
Subject: Re: [BITX20] Pelican cases
Does anyone know if the awful logos plastered all over the case are decals that can be removed or are the screened?
_._,_._,_
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From: DaveC <murzim@...>
To: [email protected]
Sent: Thursday, December 21, 2017 11:19 AM
Subject: Re: [BITX20] B40 small problem
Hi Jack.
It says keyestudio DS3234 on the device.
I will change the RTC update time to 30 seconds, plenty fast enough for me.
Dave
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All:
The way Ashhar is using a single ?C I/O line to key the ?BITX is pretty clever, but some people are having issues with different keys/keyers/paddles. I think the main reason he used a voltage divider for key sensing is because he was running out of I/O pins on the Nano. Looking at the code, the LCD display uses the standard LiquidCrystal library, which eats up 6 I/O pins. I know Allard has Rel. 2.0 of the software going, but I'm wondering if A4 and A5 could be moved and the I2C interface used for the LCD display. That would free up enough lines for the keyer to dedicate a dit and dah pin for each. Quite honestly, I have not looked at Allard's code yet (too many alligators), so I'm just tossing this out there for discussion.
Jack, W8TEE
|
Does anyone know if the awful logos plastered all over the case are decals that can be removed or are the screened?
|
|
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Hi Jack.
It says keyestudio DS3234 on the device.
I will change the RTC update time to 30 seconds, plenty fast enough for me.
Dave
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
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From: "tausciam@..." <tausciam@...>
To: [email protected]
Sent: Thursday, December 21, 2017 11:08 AM
Subject: Re: [BITX20] Help! I think I may have just ruined my 9 year old's Chanukah
On Thu, Dec 21, 2017 at 08:04 am, Jack Purdum wrote:
I must have missed the URL for the video
?
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
On Thu, Dec 21, 2017 at 08:08 am, Vince Vielhaber wrote:
I figured as much which is why I didn't push disconnecting the antenna.
Yes. I know in theory that it doesn't matter if you have anything at all connected as long as you don't key up. In theory... but, at this point, I wouldn't trust theory. I may be a walking time bomb waiting to blow another piece of electronics.
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Re: #Ubitx RX only version for general coverage
#ubitx
I am going to take the route of breaking down the circuit into functional modules and implementing each of them as daughterboards that plug onto a motherboard.? I am also going to implement the Raduino functionality using an Arduino Pro Mini with a 4x4 matrix keypad for direct entry and the rotary encoder for fine tuning.? I also will implement the functionality of the A-PLOP board and an S-Meter.? Now, how to implement an AGC circuit digitally?
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Craig Thibodeaux