Hi all,
I fried my arduino by letting the brown wire touch the 12v line when trying to ground it for recalibration (it should have been the red wire that i was trying to ground i think there is an error on hfsigs wire up page which says to ground the brown wire). It wouldn't have made any difference as i think if you put 12v on any of the pins it will fry it. Desoldered the arduino and put a new one in and it works again- it was a pain to get it out. The broken nano was not recognised by the ide, which is not a good sign if all the other settings are right. I've generally found arduinos to be pretty robust but not at all to overvoltages.
Regards
Simon?
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Re: Why 16x2 LCD instead of 20x4?
How about a panadapter? (yes, I'm kidding) de Mike
On Friday, January 20, 2017 7:05 PM, Richard Andrew Knack via Groups.Io <ihc73scout2@...> wrote:
Let's see... Real-time clock. S-meter. SWR meter (with added circuitry). CW or digital mode translator. All sorts of stuff, with additional space available! :)
Rich KC8MWG
On Friday, January 20, 2017 6:56 PM, John Backo via Groups.Io <iam74@...> wrote:
That's almost true for the serial units. The basic parallel input 20x4 is about twice as expensive as the 16x2.
The Raduino sketch compiles to about 18K, with ~30K available in the Nano. ( just checked it with the official download and Arduino 1.6.4). So one could use the larger display.
Now, what do we add to display...?
john
AD5YE
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My radio just arrived! ?Unfortunately, the LCD was cracked and black material has bled across the screwn. ?Are replacements offered for damaged shipments?
If not, can someone point me to a place to get a replacement lcd or what to look for? ?I am very new to all this and am not sure where to look.
Thanks?
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Re: AD9850 DDS-about its four RF output...
It is said that a square wave is better for the diode ring mixer, the diodes work better with the sharp rise and fall times of that signal.
On Jan 17, 2017 7:08 PM, "Juan Carlos Berberena Glez via Groups.Io" <co6bg= [email protected]> wrote:
Hi Colleagues The best for all. Please I need help to understand better something about this DDS-AD9850 This particular ic has four(4) rf output, two(2) of them sinusoidal and the others two(2) square. I was checking with the oscilloscope and I see the level of the square signal is more than twice in relation with the other two sinusoidal rf signal. I re-did the Chinese module and use a transformer as Coilcraft W2010 to get the final rf output. Now my two questions. 1-Can I use the square signal for a VFO ? 2-The transformer in the sinusoidal rf output help to avoid the use of the LPF as well.
Please, I want to hear any comments about. Thank you in advance Qrv's? 73's Jc
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Re: Regarding the future of BITX... (off with his head)
Anyone considering the modular approach adopted by M0XPD in that
link might like to consider the alternative bi-directional amplifier
design suggested by Wes Hayward W7ZOI. It has better-defined input
and output impedances, and therefore more reproducible performance
when used in experimental designs.
Link here:
Steve G3TXQ
On 17/01/2017 10:11, G4NQX wrote:
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What is really being asked for here is a basic IF board so
other experiments can take place.? However I don't think that's
in Ashars remit.? If that's what you want build a BitX IF in
modular form from the various info on sites around the net.
There's even breadboard veroboard mini modules to play with.
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Re: Bitx40 Raduino source sketch
This was already mentioned in one of the posts last week, someone else had compiling issues, the solution was going back to an earlier library i think. Maybe try the search on the forum?
Get
On Fri, Jan 20, 2017 at 10:30 AM -0500, "KC8WBK via Groups.Io" <cruisenewsnet@...> wrote:
Are these the correct sources for the most recent Raduino sketch for the Bitx40 and for the Si5351 library?
https://github.com/afarhan/bitx40
https://github.com/etherkit/Si5351Arduino
I noticed that there are a number of forks of the Si5351 library and it might explain the following errors when trying to verify raduino.ino:
raduino.ino: In function ¡®void calibrate()¡¯:
raduino.ino:281:91: error: no matching function for call to ¡®Si5351::set_freq(long long int, long long unsigned int, si5351_clock)¡¯
raduino.ino:281:91: note: candidate is:
In file included from raduino.ino:38:0:
/home/paul/sketchbook/libraries/Si5351/si5351.h:285:10: note: uint8_t Si5351::set_freq(uint64_t, si5351_clock)
? uint8_t set_freq(uint64_t, enum si5351_clock);
????????? ^
/home/paul/sketchbook/libraries/Si5351/si5351.h:285:10: note:?? candidate expects 2 arguments, 3 provided
raduino.ino: In function ¡®void setFrequency(long unsigned int)¡¯:
raduino.ino:312:75: error: no matching function for call to ¡®Si5351::set_freq(long long unsigned int, long long unsigned int, si5351_clock)¡¯
raduino.ino:312:75: note: candidate is:
In file included from raduino.ino:38:0:
/home/paul/sketchbook/libraries/Si5351/si5351.h:285:10: note: uint8_t Si5351::set_freq(uint64_t, si5351_clock)
? uint8_t set_freq(uint64_t, enum si5351_clock);
????????? ^
/home/paul/sketchbook/libraries/Si5351/si5351.h:285:10: note:?? candidate expects 2 arguments, 3 provided
raduino.ino:315:75: error: no matching function for call to ¡®Si5351::set_freq(long long unsigned int, long long unsigned int, si5351_clock)¡¯
raduino.ino:315:75: note: candidate is:
In file included from raduino.ino:38:0:
/home/paul/sketchbook/libraries/Si5351/si5351.h:285:10: note: uint8_t Si5351::set_freq(uint64_t, si5351_clock)
? uint8_t set_freq(uint64_t, enum si5351_clock);
????????? ^
/home/paul/sketchbook/libraries/Si5351/si5351.h:285:10: note:?? candidate expects 2 arguments, 3 provided
raduino.ino: In function ¡®void setup()¡¯:
raduino.ino:589:48: error: no matching function for call to ¡®Si5351::init(int, long int)¡¯
raduino.ino:589:48: note: candidate is:
In file included from raduino.ino:38:0:
/home/paul/sketchbook/libraries/Si5351/si5351.h:283:7: note: void Si5351::init(uint8_t, uint32_t, int32_t)
? void init(uint8_t, uint32_t, int32_t);
?????? ^
/home/paul/sketchbook/libraries/Si5351/si5351.h:283:7: note:?? candidate expects 3 arguments, 2 provided
raduino.ino:601:62: error: no matching function for call to ¡®Si5351::set_freq(long int, long long unsigned int, si5351_clock)¡¯
raduino.ino:601:62: note: candidate is:
In file included from raduino.ino:38:0:
/home/paul/sketchbook/libraries/Si5351/si5351.h:285:10: note: uint8_t Si5351::set_freq(uint64_t, si5351_clock)
? uint8_t set_freq(uint64_t, enum si5351_clock);
????????? ^
/home/paul/sketchbook/libraries/Si5351/si5351.h:285:10: note:?? candidate expects 2 arguments, 3 provided
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Re: First hack at modifying Raduino code
Hi Clint. Jason 's si5351 library has changed and I had to tweek the arguments. Also, the line 2 printing is an issue. (garbage display)? But the underlying code works well!
Arduino 1.8.1, si5351 library v2
73. Good Work.?
Larry kb3cuf
Sent from my Galaxy Tab? E
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-------- Original message -------- From: Clint Turner <turner@...> Date: 1/18/2017 00:03 (GMT-05:00) Subject: [BITX20] First hack at modifying Raduino code
Likely nothing too special, I plopped a version of the Raduino sketch in the "KA7OEI" folder ("raduino_ka7oei_20170117.ino") that has the following modifications: - Added oversampling and leaking integration to the tuning pot to both increase resolution of the tuning pot somewhat and reduce the 50 Hz "flickering" that occurs when the A/D can't decide between two steps which can cause an SSB or CW signal to seem to warble badly.? It works slightly better WITHOUT the 0.1uF cap on the tuning pot - at least on receive - as the light amount of noise helps "dither" the result to marginally higher effective resolution.? (If RF gets into it, put the capacitor back!)? The "leaky" integrator help to minimize very slow drift of the potentiometer value causing a drift in frequency, the side effect being a tiny bit of "front-lash" (as opposed to backlash) in the tuning.
- Increased the display resolution to show 10 Hz steps now that additional resolution has been synthesized.? Note that not each and every 10 Hz step can always be adjusted repeatedly, but since the above adds a lot of steps between the previous 100Hz displayed steps it makes sense to show the user where they actually are. - Added an on-screen notice - and about a 1 second delay - when the end of the tuning pot is reached telling the user that it will start tuning in 10 kHz jumps.? The user has about 1 second to move the pot back if the didn't really want this to happen. To be sure, a rotary encoder is likely a bit nicer, but I believe this to be a large improvement over the original, default tuning scheme.
At some point I'll establish a GitHub account and remember how to use it again, but for now the file is there for immediate use for those who find the 50 Hz "frequency" flickering and the sudden jumping in 10 kHz steps while tuning around to be maddening. 73, Clint KA7OEI
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Re: Higher voltage for Bitx40 Final
Check out this guys.
"Note that like most boost regulators, the input power will pass through
to the output when the board is disabled, so the ENABLE pin cannot be
used to turn off power to the load." What I read there is throw a switch on the enable pin and you can switch between a higher output vs a lower output. Might be a idea. With +12V input it is over 90% up to 2A output supposedly.
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Re: Idea for future versions of BITX
Yes the stm32 board can use the Arduino, and the libraries I tried seem to work as expected. There are several other libraries that I am in the process of trying out. It can be powered through the micro USB port, or there is a vin pin on the board. I have only programmed using a USB to serial adapter or STLink. Next thing I need to try is loading a Arduino compatible boot loader for the USB port. Do not know how much time I will spend on it for now, have a project I want to finish first. For that I am going to use a Teensy 3.2
DuWayne
--
DuWayne? KV4QB
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Re: Inquired about replacement Raduino
Another possible solution is to source the replacement parts on your own.? Do you just need the si5351 or the nano?? Just buy that item and replace it.? The sketch is available for free.? This is all part of the adventure of building a kit or homebrew equipment. I can't tell you how many components I blew up making different projects (or how many times I zapped myself with high voltage DC).? To me, that is how you learn.? Yes, it can get expensive, but these items can be sourced from Ebay for a nominal price. This, of course, is just my opinion.
Marco - KG5PRT?
On Jan 25, 2017 12:45 AM, "Jerry Gaffke via Groups.Io" <jgaffke= [email protected]> wrote: It's tough to figure out what all is going on there from your posts.? But seems the rig was mostly working at first with a complaint of noisy audio.? I assume that eventually got cleaned up, perhaps by going to a different power supply, ?And then while fiddling with it trying to get it into calibation mode, the Raduino was suddenly "fried". Arguably the right call by hfsignals.
On Tue, Jan 24, 2017 at 10:23 pm, John Smith wrote:
You cannot stay in business this way.
?
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Re: Inquired about replacement Raduino
Then don't. Spend $33 each and get them from QRP-Labs. That'll teach 'em! HFSigs did earlier buyers a favor, and sold the upgrade parts at a loss for good will for weeks. They stated that deal would end about Jan 20, and it was discussed on this list repeatedly. You are right - they cannot stay in business that way. Previous topics? See the hundreds of postings of satisfied new owners. Paindoc/kf7rsf
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Re: Inquired about replacement Raduino
It's tough to figure out what all is going on there from your posts. ?But seems the rig was mostly working at first with a complaint of noisy audio. ?I assume that eventually got cleaned up, perhaps by going to a different power supply, ?And then while fiddling with it trying to get it into calibation mode, the Raduino was suddenly "fried". Arguably the right call by hfsignals.
On Tue, Jan 24, 2017 at 10:23 pm, John Smith wrote: You cannot stay in business this way.
?
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Inquired about replacement Raduino
Please pay USD 25 to Paypal id? hfsignals@...?for ?each ?Raduino. It will be shipped along with the additional components in few days.
HfSignals Team
I am not doing that! You cannot stay in business this way.
See previous topics, "Bad TX audio" and "Bad TX audio SOLVED not fixed".
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Howdy all! Before the Raduino was released, I purchased one a Si5351A DDS VFO from QRP Labs. It sure is a nice kit, and goes together really easily. I removed L4 from my BITX40 and plugged in the DDS, and it works! Yay, I can tune easily now. That's not to say there aren't any glitches. Around 7200khz there's a pretty strong birdie of some sort, plus there's a tick that's about 120hz or so. These aren't show stoppers, and the rig works as intended right now, but I would like to solve them just the same. Should I go ahead and remove the trimmer cap next to L4 as well? I've read that it wasn't necessary but what do I know. I will also try wrapping the signal cable from the DDS around a toroid and see if that doesn't help. If anyone has other suggestions, I'd sure love to hear them. If anyone would find it helpful, I can make a video to demonstrate this too. Thanks! Ryan KC7RYS miscodtgeek.com
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Re: transmitting CW with Raduino Bitx40?
Likely ok at 6 Watts. ?But will have some severe key clicks. ?Ideally, the oscillator amplitude would take 4 or 5 ms to ramp up and down with each dot or dash.
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Re: transmitting CW with Raduino Bitx40?
Try the above circuit , it works , the signal seems clean and it is small . I have not tried it on 40M yet as I am converting a BITX40v3 to 80 M . Tested it tonight , I get full output on CW on 80 M . I have the AF adjusted to approx 1k audio note via the 20 k pot . I am also going to put an adjustment pot in the sine wave output so as not to overdrive the TX . MODS : I changed the 2 - .003 uf to .002 as that is all I had in my junk box . Since I am running 12 V input , I changed the 6.8 k to 10 k ?and it still works on the bench hooked up to the BITX. The circuit is stupidly simple and seems very stable. I just installed the key in series with the sine wave output to the mic connection . Going to install a DPDT switch to disconnect mike and connect audio generator for CW . Simple and it works . 73s Buzz
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Re: transmitting CW with Raduino Bitx40?
 ?Here is the (VA3IUL) circuit I used for testing my BITX80v3 . It is injected directly into the mic input .?
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Thanks Jack and Ken for the Bezel source. Joel Caulkins KB6QVI
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On Jan 24, 2017, at 6:49 PM, Jack Purdum via Groups.Io < econjack@...> wrote: How bad is this: It's in the appendix in my C book! Gees...am I getting that bad? It's
Jack, W8TEE
Hey Jack, who was the guy selling bezels for these displays, I thought I bookmarked it but can't seem to find it. Joel? KB6QVI On Jan 24, 2017, at 1:48 PM, Jack Purdum via Groups.Io < econjack@...> wrote: I like this one:
for $5.50, as it uses the I2C interface. That means you only have two data lines to connect, plus power and ground. It leaves more I/O pins free for other things. Terry King runs the place and is good people. He also has software examples for the display on his web site.
Jack, W8TEE
?Where can you get the blue display ? Cost and part nr ? ? ? On 01/24/17, philip yates<phil@...> wrote:? Also received mine, will be moving the pot to the other side of the PCB as well. Think I would prefer a blue display as well, will then match my QRP Labs U3.
Now to find a case to put it all in. Jury rigged on bench at the moment.
Phil G7BZD
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In fewer words, make the BPF tunable and kick the transmit LPF outside the box into the antenna line. Sounds legal enough to me, except some will undoubtedly get lazy and run without the correct LPF. ?Though I suppose they could do that on any multiband hack to the Bitx40. ?Would the tunable BPF work well enough without multiple tuned circuits? ? Given the sunspot cycle, maybe do this across 80/40/20? ?I'll probably just go for two plug-in filters. I haven't been very active. ?Built a few rigs over the years, ran some Arc5 WW2 surplus when I was in college in the early 70's. ?Have had one store-bought HF transceiver, the Swan 100MX is sitting on the desk in front of me. ?One of the few knobs is labeled "PRESELECTOR". ?The schematics show it placed exactly where the BPF is on the Bitx40, doing dual duty between the exciter and the PA, and between the antenna and the receiver. ?The schematic for this preselector, what with all the band switching they found necessary, looks quite busy. ?I count 90 R's and C's and L's and T's and D's and Q's. The Bitx40 is reminiscent of that 100MX, except the 100MX has a whole lot more parts in it. Jerry, KE7ER?
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What's illegal is what you radiate which is not in specs. The FCC or ITU. or anyone else for that matter, doesn't care how you achieve that. Hi.
The real problem I see with this scheme is matching the IRF510 to all those bands with just a bunch of LPF's. This device is not the greatest choice above 40m. That along with various drain voltages may make a good match over the entire range a lot of work. It could be done if one is willing to accept lower power output on the upper bands...but WA2EBY did it. Why not? OTOH, he experimented long and hard for a proper layout for all those bands.
This is probably a better scheme with a separate PA.
john
AD5YE
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VE3MIC
DuWayne Schmidlkofer
Joel Caulkins/N6ALT