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Re: CW keyer?
When I did the Canned Frog last year I added a simple keyer to the software. For speed control, I used the rotary encoder with the push button pressed to change speed.
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DuWayne KV4qb.blogspot.com On 5/29/2016 2:57 PM, sailingtoo@... [SoftwareControlledHamRadio] wrote:
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Re: CW keyer?
Gary,?W0MNA, added a keyer to his rig. (See his earlier post.) There are a bazillion different types of electronic keyers, so pick one you like and add it to the code. The Arduino Projects for Amateur Radio book has a capacitive touch keyer, which means you don't need fancy paddles. I used two solder lugs! Attached is a picture from Chapter 7 of one Dennis built using a Digispark board (code will run on a Nano). It's a stand-alone keyer, but as you can see, no paddles are required and it's pretty small. Since you have code space, all you need to add are the solder lugs! Jack, W8TEE From: "sailingtoo@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Sunday, May 29, 2016 2:57 PM Subject: [SoftwareControlledHamRadio] CW keyer? Hello all - I'm new here, have read thru LOTS of the threads and found LOTS of good info. ?I have ordered the parts, 49-er, etc and PCB and parts kit and waiting for delivery. ? This sure seems like a NICE project to build. my question, has anyone considered adding a CW keyer to the Arduino code? ?Perhaps having the CW speed to be displayed on LCD? ?Perhaps this ?has been done and I didn't find the info -? While I've done some Arduino programming and can tweak programs, I'm NOT a true programmer. ? Thanks to all for having such a GREAT group, and especially to Dr Jack, Farrukh, and Dennis to bringing such a nice project to the world. 73 de Ken H> K9FV
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Re: Chinese rotary encoder PCB
Chances are I'm wearing shoes older than you are! Jack, W8TEE From: "g4ipz@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Sunday, May 29, 2016 12:41 PM Subject: Re: [SoftwareControlledHamRadio] Chinese rotary encoder PCB Hi Jack.
Thanks for pointing that mod out. I have had to do it before, mostly when I was playing with PIC programming. I really should do it as a matter of course with rotary encoders generally - I must be getting old. Oh yes - I forgot - I am old HI! 73 Slim G4IPZ |
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Re: Chinese rotary encoder PCB
Hi Slim: The KY-040 encoder is what I used in the Forty-9er, too. I also added two 0.1uF caps from the CLK and DT lines to ground to debounce the encoder. This can be seen in the attached photo.? Jack, W8TEE From: "g4ipz@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Sunday, May 29, 2016 11:14 AM Subject: [SoftwareControlledHamRadio] Chinese rotary encoder PCB I thought this might be of interest to the group. I have been using different rotary encoders over the years for diferent projects and perhaps the following info may be of help. I have included a photo of the type I am referring to as "rotary encoder.jpg" in the files section. It is marked with the name 'KEYES' but can be found 'unbranded' on several Chinese sites. To the UK they come in at less than ?4 for 10 of them. The encoder on this pcb requires a 5V supply and will not work simply with reference to the digital input levels on the Arduino pins. The connections needed for it to work are as follows, referring to the print on the encoder pcb and the print on the multiway connector on the project motherboard. CLK --> pin marked 2 on board (yellow section of pins) DT ----> pin marked 3 on board (yellow section of pins) SW ---> pin marked 7 on board (yellow section of pins) ?+? -----)> 5V (any one will do) GND -----> G (any one will do) all the best 73 Slim G4IPZ |
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Re: Upgrading Displays to I2C
Don: There are a bunch of files in the NewLiquidCrystal library. However, the proper library directory name should be LiquidCrystal_I2C. For my system, I have the 1.6.9 IDE installed on drive E, so I set it up like: ? ?E:/Arduino1.6.9/libraries/LiquidCrystal_I2C If you erased the old I2C library and it compiled, it may be just an adjustment of the blue pot on the display. Jack, W8TEE From: "donmay2@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Saturday, May 28, 2016 8:14 PM Subject: [SoftwareControlledHamRadio] Re: Upgrading Displays to I2C Hank / K5HDE,
Jack / W8TEE, I just finished assembly of Forty-9er/Nano/DDS/16x2 LCD/Encoder. Finally got the VfoSource sketch to compile but LCD only back lights and has the top row of matrix squares lighted (No alpha-numeric). I'm using a 16x2 LCD display (Chinese 1602A Ver2.0) with a piggyback I2C serial converter board (Type 1, A0, A1, A2) I soldered to LCD. I ran the suggested address scanner and got: Found Address 63 (0x3F).? I notice that the VfoSource sketch,? line 100, addresses: lcd (0x27, 16, 2); Hank, I'm guessing that this is similar to your initial LCD problem. I downloaded the NewliquidCrystal_1.3.4.zip files but there seems to be a load of different .cpp and .h library files to choose from for various LCDs. I'm? stuck... Don / N5DM Houston, Texas |
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Re: Modifying Frequency Range of DDS VFO
Yes, this is the page you get to if you go to Yourduino.com and look at their I2C displays. I'm pretty sure this was written by Terry King who owns Yourduino. He also served as Tech Ed on my Beginning C for Arduino book. He's a great guy and knows his stuff. Jack, W8TEE From: "lcolclough@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Friday, May 27, 2016 8:14 PM Subject: [SoftwareControlledHamRadio] Re: Modifying Frequency Range of DDS VFO A good site Re: LCD I2C compiling and display issues. Bud, K1LC
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Re: Faulty Mini 360 Buck voltage regulator in the nano-DDS kit
Hi Hank: Believe me, I understand the economics of this situation. (Most people probably don't know it, but my Ph.D. is in economics, not EE.) Still, placing QA on the buyer is not how it should work. I've ordered stuff from Tayda, too, but my experience has been pretty good. There are two vendors in GA selling caps and resistor assortments that seem pretty good. Still, they should be doing the QA, not me. If testing the parts before sale doubles the price, I'll pay it because it won't slow down my assembly time. I still think if enough people make it known that a vendor supplies parts that are out of spec, they will take steps to do the QA themselves, or force their suppliers to do the QA.? Most of the time, out of spec on a 10% resistor or cap doesn't make much difference in many of the circuits I build. On the other hand, if I know that the circuit requires a fairly precise bias on a transistor, I measure it before placing it in the circuit. Like you said, the opportunity cost of changing a part after it's on the board is a pain in the butt. Anyway, let's put QA where it belongs...and that's not on us. Jack, W8TEE From: "HankEllis@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Friday, May 27, 2016 12:05 AM Subject: Re: [SoftwareControlledHamRadio] Re: Faulty Mini 360 Buck voltage regulator in the nano-DDS kit I get it that we shouldn't have to resort to doing our own QA. However the problem is so widespread that it is impossible to control. To a lessor extent I give the vendor a pass. He just gets a shipment at a very good price, then sells it on online auction. I don't like the quality from Vendor A, fine. I try Vendor B, C, D, etc until maybe Vendor CE finally has in spec parts at a good price. Which probably only will work until the next batch number rolls in. I place the blame solely on the manufacturer. Yes he may make good in spec parts and those go to production manufacturers who will do their own due diligence to ensure quality control. Those units that don't make the cut you see on eBay. Rather sell sketchy stuff for a small charge and recoup some revenue than scrap the lot and recoup none is the business model. For example those bypass caps I mentioned? They were from Tayda Electronics. As a vendor for the amateur radio?homebrew market they?offer very good prices and their customer service is top shelf. They sell on eBay as well as having a separate web site. Cost in lots of 100 is 0.009 each or 90 cents per 100. The same value cap at Mouser is 0.069 each or 6.90 per 100. Or go top shelf and see what Lady Ada at Adafruit offers. They come in packs of 10 and 10 packs will run you 17.60. I can throw away a bunch from Tayda and still be money ahead. When I started homebrewing one of my Homebrewing Elmers (vs my DX Elmer or my Satellite Elmer) highly suggested that my next project should be a LC meter from Almost All Digital Electronics. Took his advice and assembled one. Good money spent. My Homebrewing Elmer hinted that some sources have questionable quality and to check each component prior to installation. Between the Fluke multimeter and the AADE LC meter I know what I'm stuffing in the board. That LC meter came in real handy when working out the final tank circuit of a 6C4/5763 vacuum tube rig I built. Unfortunately the proprietor of AADE passed away last year and the future is uncertain?for AADE and the LC meter. As a future project we would do well to keep this piece of test equipment available to radio amateurs. It's one thing to do QA on a batch of caps or resistors you got dirt cheap. It's another when you are dealing with fraud. Do an online search for 'fake transistors' and that will get you to double up on your blood pressure medications. Till later Hank K5HDE ---------------------------------------------------------- Anytime someone finds a vendor, domestic or foreign, who sells product that is out of spec, they need to post that vendor's name on this forum. There's no need for this kind of crap and if enough of us detail who the bad suppliers are, they will learn that they have a choice: sort out the crap before they ship it, or lose sales here. Jack, W8TEE?
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DuWayne Schmidlkofer
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