New run of DG5 emulator boards in stock

I received another run of 100 PCB’s for the DG5 emulator, project info here.  Please read before ordering – this isn’t a kit – you will need additional components.

INTERNATIONAL BUYERS PLEASE NOTE!  Please e-mail me at mycall@mycall.com (mycall is the website you’re on!) before placing an order.  On January 21, 2018, USPS stopped allowing USPS First Class Mail to contain goods, only documents.  Rates for goods are MUCH higher, unfortunately.  

https://about.usps.com/postal-bulletin/2017/pb22482/html/updt_006.htm




Steve
KV6O

New DG5 PCB batch ordered

UPDATE 10/17/19 – new boards have arrived, hopefully I can get the ordering process up and running this weekend.

I have ordered another 100 boards, which should be here in a few weeks. There still seems to be interest, so I’ll keep supplying the boards! I’ll post an update when they are ready to ship.

International shipping costs skyrocket!

I don’t know what the USPS is thinking, but I can no longer ship international for the $2.50 I have been charging.  The USPS rate for a document is about $2.50 (for 1 ounce), but for goods it varies – I tried to ship to Australia and it was over $13!  Bottom line, if you want me to ship internationally, please send me an e-mail first with you address – I’ll have to see if Paypal can do the calculations, but in the mean time please ask first at my call @ my call.com (same as the website you’re on!)

New boards in stock!

I received another run of 100 PCB’s for the DG5 emulator, project info here.  Please read before ordering – this isn’t a kit – you will need additional components.

Same price, $8.00 + $2.50 shipping for as many boards as you like. In most circumstances, I can ship internationally for this price as well. Rather than having to find the link to order on the project page (which has gotten rather large!) you can use the link below:





Steve
KV6O

Another 100 PCB’s ordered!

UPDATE 7/6/17 – The last 2 boards shipped today, so I am officially out of stock for now, but more are on their way.

I placed another order for 100 PCB’s with the same PCB house that made the last batch, should be here in a week or two.  In the meantime, I am selling the remaining few boards I have to folks who have written me wanting a board.  I *think* that means ~180 boards shipped so far, I’ll have to look at my previous orders.  I hope folks are having fun with the project!

A lot of updates to the DG5 project

I finally had some time the past two weekends, and I made a lot of updates to the project – the code has been updated, I released code for the Nixie and LED versions, I finished off the LED version by mounting it in a chassis, I broke up the project into 3 separate pages for LCD, LED, and Nixie, and finally, I moved the code and PCB project files over to Github.  Whew!

The current version as of this writing is 2.0.2.  Updates will be directly published to the Github project page. Version 2.0.2 includes:

  • Stability Enhancement. Locks the values used for the HFO and BFO, updates then only if they have moved more than 500Hz and 100Hz, respectively.  This should help eliminate some wander/wiggle by keeping the two “fixed” frequencies stable.
  • Released the LED version, uses MAX 7219 based, 8 digit, 7-segment display.
  • Released the Nixie version, uses I2C SmartNixies.
  • Added correction factor (optional)
  • Added smoothing/averaging to reduce display jitter – averages over 4 readings (adjustable)
  • Code cleaned up and better documented
  • Changed frequency counter logic to the FreqCount Arduino library
  • Tested with latest Arduino IDE (1.8.2)

That’s all for now, click on the project pages to see more on the LED and Nixie versions. If you have a DG5 emulator running, give the new code a try!

Steve
KV6O

New DG5 code!

It’s been a while since I have updated the code, and I have been working on some improvements on and off over the past year as I have had time.  This is for the LCD version, which I think just about everyone is running.  I have made an LED and Nixie tube version as well, but haven’t updated the code for these versions just yet – let me know if you need it. Done, new pages have been set up for both and new code for all 3 version is on Github

Some of the improvements:

  • New/improved frequency counter routine.  The program now uses the “FreqCount” library that is available in the IDE environment.  You will probably need to download this, which can be done selecting “Sketch/Include Library/Manage Libraries..” in the Arduino IDE.
    Search on “FreqCount” and you should find Paul Stoffregen’s library. Install the latest version.
  • Correction Factor added.  If needed, you can correct the display.  This will not “fix” a poor frequency reference/source like the ceramic resonators found on UNO’s.
  • Better code documentation.  I hope it’s easier to read and understand if you want to get in there and make your own modifications.
  • Added smoothing, anti-jitter code to help stabilize the display. (smooths over 10 readings, this is adjustable)
  • Tested with latest Arduino IDE (1.8.2)

4/8/17 – Code has been moved to Github, LCD, LED, and Nixie versions published.

4/8/17 – Version 2.0.2 uploaded to Github. Stability Enhancement added. Tests the HFO and BFO to see if they have moved more than 500Hz and 100Hz, respectively.  If not, keeps the last reading. This should help eliminate some wander/wiggle but keeping the two “fixed” frequencies stable.  Also lowered the averageing to 4 samples (from 10), makes display a little more responsive