KY-040 encoder threaded for mounting?
I have ordered and received a couple of KY-040 encoders expecting to get the ones that are threaded to take a nut and getting ones that are unthreaded. The vendors have been nice about refunding money but I really need a encoder threaded and with a mounting nut. Anyone know of a source or want to trade for an unthreaded encoder?
Thanks! Dave, N4ELM
|
Did you download the book's code from the M-H web site? I'm not at home right now so I don't have access to my system, but the URL is given in the book's Preface.
Jack, W8TEE
From: "Bob Mix bob.mix@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Monday, August 15, 2016 11:29 PM
Subject: Re: [SoftwareControlledHamRadio] CW Automatic Keyer
?
Physical pins 5 & 7 are software pins 0 and 2.? Where can I
download the latest code?
Thanks, Jack.
Bob
On 8/15/2016 8:04 PM, Jack Purdum
jjpurdum@... [SoftwareControlledHamRadio] wrote:
?
It's been a while since I've looked
at the code, but Figure 7-14 shows the cap sensors on
pins 5 and 7. I'd go back to the book and read the
section on the cap sensors starting on page 144.
Jack,
W8TEE
?
My
ATTiny85 runs the Blink example to
flash an LED across pins 4 and 5. ?But
the Keyer code does not work for me to
detect capacitance on pins 0 and 2 in
the keyer circuit. ?I changed
OUTPUTPIN from 4 to 1, and it still
does not detect dits or dahs.
Is
there a newer version of the code than
Chapter 8 Rev 4?
Thanks,
Bob
KF6ABC Mix
|
Physical pins 5 & 7 are software pins 0 and 2.? Where can I
download the latest code?
Thanks, Jack.
Bob
On 8/15/2016 8:04 PM, Jack Purdum
jjpurdum@... [SoftwareControlledHamRadio] wrote:
toggle quoted message
Show quoted text
?
It's been a while since I've looked
at the code, but Figure 7-14 shows the cap sensors on
pins 5 and 7. I'd go back to the book and read the
section on the cap sensors starting on page 144.
Jack,
W8TEE
?
My
ATTiny85 runs the Blink example to
flash an LED across pins 4 and 5. ?But
the Keyer code does not work for me to
detect capacitance on pins 0 and 2 in
the keyer circuit. ?I changed
OUTPUTPIN from 4 to 1, and it still
does not detect dits or dahs.
Is
there a newer version of the code than
Chapter 8 Rev 4?
Thanks,
Bob
KF6ABC Mix
|
It's been a while since I've looked at the code, but Figure 7-14 shows the cap sensors on pins 5 and 7. I'd go back to the book and read the section on the cap sensors starting on page 144.
Jack, W8TEE
From: "bob.mix@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Monday, August 15, 2016 10:56 PM
Subject: [SoftwareControlledHamRadio] CW Automatic Keyer
?
My ATTiny85 runs the Blink example to flash an LED across pins 4 and 5. ?But the Keyer code does not work for me to detect capacitance on pins 0 and 2 in the keyer circuit. ?I changed OUTPUTPIN from 4 to 1, and it still does not detect dits or dahs.
Is there a newer version of the code than Chapter 8 Rev 4?
Thanks, Bob KF6ABC Mix
|
My ATTiny85 runs the Blink example to flash an LED across pins 4 and 5. ?But the Keyer code does not work for me to detect capacitance on pins 0 and 2 in the keyer circuit. ?I changed OUTPUTPIN from 4 to 1, and it still does not detect dits or dahs.
Is there a newer version of the code than Chapter 8 Rev 4?
Thanks, Bob KF6ABC Mix
|
How about a Contest in September-Pefect for this 49-er/VFO project?
I would guess by September of this year, most of the 49-er/VFO radios that were built from March QST of this year, would be on the air by now, or will be very shortly, and will be ready for their first contest!? The original 49-er xcvr would not work very well, because it only has a single frequency.? But our new one, the 49-er/VFO, can now move about the 40 meter CW portion of our band, very nicely!?
The contest that I have in mind, is sponsored by the North Georgia QRP Club; they call it, Peanut Power QRP Sprint.? It will be held on Sunday, September 25, 2000Z to 2200Z.? Yes, you read the time correctly; only 2 hours long with very minimum impact on your family life!? This is what makes it so "kool"!? It is held on two other bands and modes?as well, but, we only care about CW on 40 meters, 7061 kHz and above for this contest.?They even have some different catagories too. ?But, you will need a Peanut Power Number, or, PPN number; it is free, but you must contact them to get it; I have mine, it is #136.? Plaques will even be awarded to category winners, but really now, who of us really cares about that stuff?? I just want to put this thing on the air, and see what it will do!? But if we were to get a plaque; we could hang it on the wall the way Jack did with his plaque from the ARRL!
I attached a PDF scan that will give you all of the information that I believe you will need.? Hope to see you all the air with this new rig, passing out your PPN number!
Gud Luc, 73, de Karl, KO8S, PPN 136
|
Re: VFO Encoder Tuning Stops
Absolutely! I've often said I have enough EE knowledge to be dangerous. I know all three of us are tickled by the number of people who have taken the time to build the Forty-9er. For those who don't know, the rig was the original brainchild of Doug Hendricks (YouKits) and Wayne Burdick (Elecraft) and, I think, was a kit distributed by the NorCal computer group. Just another case of standing on the shoulders of those who preceded you.
Anyway, if you're doing stuff with microcontrollers, share you work with us. I know it will be appreciated.
73, Jack, W8TEE
From: "w6dq@... [SoftwareControlledHamRadio]"
To: "SoftwareControlledHamRadio@..."
Sent: Thursday, August 11, 2016 12:14 PM
Subject: Re: [SoftwareControlledHamRadio] Re: VFO Encoder Tuning Stops
?
Jack,
You nailed it!? This is such a great group, with really great members.? I also want to express my thanks to the group for receiving the QST Cover Plaque.?
I appreciate YOUR comments about my role in our book.? The way I see it though, I don't think either of us could have done it on our own.? Synergism!
73,
-dennis W6DQ Inyokern CA
On Thursday, August 11, 2016 8:31 AM, "Jack Purdum jjpurdum@... [SoftwareControlledHamRadio]" wrote:
?
[ from Jack Purdum included below]
Thanks for the email...it's sincerely appreciated. I should also thank a bunch of other readers, as the QST article won the Cover Plaque Award for the best article in that issue. It's a nice repro of the cover on a walnut back. (See pix.) I'm hopeful that they will take the (pending) Arduino Antenna Analyzer article, too. (Some pix already on the User Group site.)?
73, Jack, W8TEE
From: "Karl Schwab ktschwab@... [SoftwareControlledHamRadio]"
To: "SoftwareControlledHamRadio@..."
Sent: Thursday, August 11, 2016 11:11 AM
Subject: Re: [SoftwareControlledHamRadio] Re: VFO Encoder Tuning Stops
?
Thanks Jack!? Boy, this is a lot of "kool" stuff you are doing!? I sent a letter via email,?just now,?to ARRL,?praising your 49-er/VFO article and this forum!? Let's see if it makes the pages of QST!
73, de Karl, KO8S (I smoked my D882, I'm waiting for a batch now from China!)
|
Re: VFO Encoder Tuning Stops [1 Attachment]
Jack,
You nailed it!? This is such a great group, with really great members.? I also want to express my thanks to the group for receiving the QST Cover Plaque.?
I appreciate YOUR comments about my role in our book.? The way I see it though, I don't think either of us could have done it on our own.? Synergism!
73,
-dennis W6DQ Inyokern CA
On Thursday, August 11, 2016 8:31 AM, "Jack Purdum jjpurdum@... [SoftwareControlledHamRadio]" wrote:
?
[ from Jack Purdum included below]
Thanks for the email...it's sincerely appreciated. I should also thank a bunch of other readers, as the QST article won the Cover Plaque Award for the best article in that issue. It's a nice repro of the cover on a walnut back. (See pix.) I'm hopeful that they will take the (pending) Arduino Antenna Analyzer article, too. (Some pix already on the User Group site.)?
73, Jack, W8TEE
From: "Karl Schwab ktschwab@... [SoftwareControlledHamRadio]"
To: "SoftwareControlledHamRadio@..."
Sent: Thursday, August 11, 2016 11:11 AM
Subject: Re: [SoftwareControlledHamRadio] Re: VFO Encoder Tuning Stops
?
Thanks Jack!? Boy, this is a lot of "kool" stuff you are doing!? I sent a letter via email,?just now,?to ARRL,?praising your 49-er/VFO article and this forum!? Let's see if it makes the pages of QST!
73, de Karl, KO8S (I smoked my D882, I'm waiting for a batch now from China!)
|
Re: VFO Encoder Tuning Stops
Thanks for the email...it's sincerely appreciated. I should also thank a bunch of other readers, as the QST article won the Cover Plaque Award for the best article in that issue. It's a nice repro of the cover on a walnut back. (See pix.) I'm hopeful that they will take the (pending) Arduino Antenna Analyzer article, too. (Some pix already on the User Group site.)?
73, Jack, W8TEE
From: "Karl Schwab ktschwab@... [SoftwareControlledHamRadio]"
To: "SoftwareControlledHamRadio@..."
Sent: Thursday, August 11, 2016 11:11 AM
Subject: Re: [SoftwareControlledHamRadio] Re: VFO Encoder Tuning Stops
?
Thanks Jack!? Boy, this is a lot of "kool" stuff you are doing!? I sent a letter via email,?just now,?to ARRL,?praising your 49-er/VFO article and this forum!? Let's see if it makes the pages of QST!
73, de Karl, KO8S (I smoked my D882, I'm waiting for a batch now from China!)
|
Re: VFO Encoder Tuning Stops
Thanks Jack!? Boy, this is a lot of "kool" stuff you are doing!? I sent a letter via email,?just now,?to ARRL,?praising your 49-er/VFO article and this forum!? Let's see if it makes the pages of QST!
73, de Karl, KO8S (I smoked my D882, I'm waiting for a batch now from China!)
On Thursday, August 11, 2016 10:53 AM, "Jack Purdum jjpurdum@... [SoftwareControlledHamRadio]" wrote:
?
On the inexpensive KY-040 encoder, the power and ground leads are clearly marked and the center lead is to the switch. The two remaining pins are the clock and data leads. Just reverse those.?
BTW, I have an article titled?¡°Rotary
Encoders Revisited¡± in the April, 2016, issue of?QRP
Quarterly?that talks about rotary encoders. This article centers on a "variable speed increment". You know how the increment is changed on the Forty-9er by pushing on the encoder shaft and then rotating to the desired increment. This allows you to make large frequency changes more quickly. This article has the code that senses how fast you are turning the encoder shaft. If you are turning it quickly, the code changes the increment to 10K per detent. If you return to slowly turning it, it returns to your default increment (e.g., 100Hz). (You can set the "fast" increment value in the source code to whatever you want.) The advantage is that you don't have to mess around with pushes.selection when making large frequency jumps.
73, Jack, W8TEE
From: "ktschwab@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Thursday, August 11, 2016 10:17 AM
Subject: [SoftwareControlledHamRadio] Re: VFO Encoder Tuning Stops
?
Hello Dave;
In reading your post on reversing the leads of the encoder to reverse tuning; which leads would I reverse to accomplish this?seeing that there are 5 of them?? Thanks, Karl, KO8S
|
Re: VFO Encoder Tuning Stops
On the inexpensive KY-040 encoder, the power and ground leads are clearly marked and the center lead is to the switch. The two remaining pins are the clock and data leads. Just reverse those.?
BTW, I have an article titled?¡°Rotary
Encoders Revisited¡± in the April, 2016, issue of?QRP
Quarterly?that talks about rotary encoders. This article centers on a "variable speed increment". You know how the increment is changed on the Forty-9er by pushing on the encoder shaft and then rotating to the desired increment. This allows you to make large frequency changes more quickly. This article has the code that senses how fast you are turning the encoder shaft. If you are turning it quickly, the code changes the increment to 10K per detent. If you return to slowly turning it, it returns to your default increment (e.g., 100Hz). (You can set the "fast" increment value in the source code to whatever you want.) The advantage is that you don't have to mess around with pushes.selection when making large frequency jumps.
73, Jack, W8TEE
From: "ktschwab@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Thursday, August 11, 2016 10:17 AM
Subject: [SoftwareControlledHamRadio] Re: VFO Encoder Tuning Stops
?
Hello Dave;
In reading your post on reversing the leads of the encoder to reverse tuning; which leads would I reverse to accomplish this?seeing that there are 5 of them?? Thanks, Karl, KO8S
|
Re: Getting help with programing the 49-er VFO project
Me too!? I could not have done it without them!? de Karl, KO8S
On Thursday, August 11, 2016 10:05 AM, "Jack Purdum jjpurdum@... [SoftwareControlledHamRadio]" wrote:
?
I like the way this group helps one another...good stuff!
73, Jack, W8TEE
From: "ab1br@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Wednesday, August 10, 2016 11:42 PM
Subject: Re: [SoftwareControlledHamRadio] Re: Getting help with programing the 49-er VFO project
?
Karl, ?I put a very small series resistor in the D882 emitter leg to calm it down. Still getting 2.5wts out into the dummy load. I also put a good chunk of aluminium for a heat sink on the D882s exposed collector connection.?I ordered a batch of D882s as I'd gone through several as well. However, I don't believe the importance of a good heat sink on the D882s collector can be over-estimated. Let me know if you'd like me to send you a new D882... ?have fun & 73, Jim ?AB1BR
|
Re: VFO Encoder Tuning Stops
Hello Dave;
In reading your post on reversing the leads of the encoder to reverse tuning; which leads would I reverse to accomplish this?seeing that there are 5 of them?? Thanks, Karl, KO8S
|
Re: Getting help with programing the 49-er VFO project
I like the way this group helps one another...good stuff!
73, Jack, W8TEE
From: "ab1br@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Wednesday, August 10, 2016 11:42 PM
Subject: Re: [SoftwareControlledHamRadio] Re: Getting help with programing the 49-er VFO project
?
Karl, ?I put a very small series resistor in the D882 emitter leg to calm it down. Still getting 2.5wts out into the dummy load. I also put a good chunk of aluminium for a heat sink on the D882s exposed collector connection.?I ordered a batch of D882s as I'd gone through several as well. However, I don't believe the importance of a good heat sink on the D882s collector can be over-estimated. Let me know if you'd like me to send you a new D882... ?have fun & 73, Jim ?AB1BR
|
Hi Bobbie:
It really is surprising how well the rig works, given its cost. I did manage to smoke a final transistor during a "key down" test, but I was running 13.8V from my large xcvr supply. I made a small heat sink from a piece of a Coke can and "wrapped" it around the transistor top and re-ran the test. Ugly, but no smoke. I would suggest to most not to exceed the 12V supply limit.
Have fun!
73, Jack, W8TEE
From: "bob4john@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Thursday, August 11, 2016 1:20 AM
Subject: Re: [SoftwareControlledHamRadio] 49er problems
?
Thanks Jack
I replaced the nano and DDS boards from the working unit to the non-working unit, and still does not work..
I checked the transistors with an on-board transistor tester and it shows two diodes in series.. ?seems that may be the problem... ?I have checked the board with a magnifier and it looks good along with the solder.?
I checked each component with my tester before soldering on the board and each tested correctly.
I will replace the transistors and see if that's that problem. But I cannot imagine why they would be bad..
I have tested the buck regulator and it seems to be stable with a little noise on the output, but the other board does the same...
Thanks for the help and a great project... seems that I managed to get one that's a problem..
BTW: the working unit is great. I began with a 49er that worked fine but the audio was a little low.. ? the VFO kit and new 49er kit is super.. ?The receiver is very good for such a small unit and the transmit output is about 3 watts running on a 12 volt battery.
bobbie kd4lv
|
Thanks Jack
I replaced the nano and DDS boards from the working unit to the non-working unit, and still does not work..
I checked the transistors with an on-board transistor tester and it shows two diodes in series.. ?seems that may be the problem... ?I have checked the board with a magnifier and it looks good along with the solder.?
I checked each component with my tester before soldering on the board and each tested correctly.
I will replace the transistors and see if that's that problem. But I cannot imagine why they would be bad..
I have tested the buck regulator and it seems to be stable with a little noise on the output, but the other board does the same...
Thanks for the help and a great project... seems that I managed to get one that's a problem..
BTW: the working unit is great. I began with a 49er that worked fine but the audio was a little low.. ? the VFO kit and new 49er kit is super.. ?The receiver is very good for such a small unit and the transmit output is about 3 watts running on a 12 volt battery.
bobbie kd4lv
|
Re: Getting help with programing the 49-er VFO project
Hi Jim
I would like to hve the scope.. how to contact you directly?
bobbie kd4lv
bob4john@windstream dot net
|
Re: Getting help with programing the 49-er VFO project
Karl, ?I put a very small series resistor in the D882 emitter leg to calm it down. Still getting 2.5wts out into the dummy load. I also put a good chunk of aluminium for a heat sink on the D882s exposed collector connection.? I ordered a batch of D882s as I'd gone through several as well. However, I don't believe the importance of a good heat sink on the D882s collector can be over-estimated.Let me know if you'd like me to send you a new D882... ?have fun & 73, Jim ?AB1BR
|
Re: Getting help with programing the 49-er VFO project
Thanks Jim for the encouraging words!?
Until the 49-er/VFO article appeared in QST, I had never heard of a "sketch" either!? I had heard of the Arduino, but I just assumed that this was some kind of computer part/stuff.?
I love building small electronic kits; I even like them more when they work!? So when I completed my hardware build of this project, I was quite confident, that I had it all wired correctly.? But then when I got into the programing of the Arduino, downloading files, in folders, subfolders, and getting the required sketch to compile;?wow!? Without help from this forum, this project was headed to my back shelf to gather dust.? I did enquire on some of the 2 meter nets here in the Detroit area, about this project and the Arduino, I didn't get any help there.? You have to understand, most of the club members nowadays, are retired and as old as me or nearly so; this Arduino stuff, is not them either!? Fortunately for this forum, and this very post, a great ham from LA offered to help me and he did.? My radio is working just great until today, I tried to turn the R3 up while watching for an increase in power output beyond the 1.8 watts,?on my wattmeter, and I smoked the D882 transistor!??? Guess I can't do it that way!? Now, the 49-er/VFO will be off of the air until my batch of new ones comes from China.? I do not have a scope, and probably, would not take the necessary time to learn how to use it.? At 80 years of age and counting, I am beginning to slow down a bit on taking on new projects, but I still do like to learn, to some degree, about them.? I think that all of this new electronic technology is really a "kool" thing, though.?
What I need Jim, is a guy like you in my area; until I find that person to learn this new stuff from, I'll just sit back and enjoy making QSO's with this project and telling all about it on the air!
vy 73, de Karl, KO8S
On Wednesday, August 10, 2016 11:33 AM, "ab1br@... [SoftwareControlledHamRadio]" wrote:
?
Hi Karl, ? I too, had never dealt with Arduino programs, (what's this 'sketch' stuff anyway?! ;)? Jack helped me with that and I was able to upload and even change the the program to zero the DDS VFO frequency to within 100Hz. ?Also rewrote the splash screen line to? identify the 49er?as,?"DDS 40Mtr QRP XCVR",?
My 49er puts out ~2.5 wts into a perfect load and monitoring the CW signal?with my? IC-745, I find no?chips?or?chirps.?However, VFO bleed-thru can be seen and heard if the signal from the DDS VFO is not carefully adjusted. There needs to be a better BP filter at the output as well.?
When reviewing the NE612 data sheet it states?a range?of 200mVp-p min. to 300mVp-p max.? for the LO input, ie, pin 6 on the NE612. So there is a very tight range (100mVp-p) for the? LO input. ?It has been said here that 2.0 to 4.0Vp-p is correct. Not sure why.
This project inspired me to buy a 200MHz sampling (DSO) oscilloscope. My old B&K has a 25MHz BW and is adequate but has some jitter. However it is a functioning oscilloscope? and?I would like to offer it to someone in the group who doesn't own?a scope.? If someone is interested?please contact me and I will let it go for shipping and handling.
Cheers, ? Jim ?AB1BR
|
Re: Getting help with programing the 49-er VFO project
Hi Jack,?
No, 200-300mV p-p is the data sheet specified input signal amlitude pin 6 of the NE612 wants? to see from the external VFO, in this case, the Nano DDS VFO output. Afterall, the output of the DDS VFO will be the same as the NE612 input at pin 6.
I've attached the NE612 data sheet for the group's reference The NE612 LO input (pin 6) spec. is highlighted in yellow.
Jim ?AB1BR
|
jjpurdum