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Interesting Radu, have you thought of using a 10.7 IF instead? It might be easier for image rejection but more important is it could be fed from the junction of C40, R37, and 12MHz Xtal filter. At

I stumbled across the Protoneer last week when searching for a controller upgrade. I was unable to find a Blue Pill or ST board variation that was _pin_ compatible with the Nano. Maybe I didn't look

I got a Blue Pill with the 48 pin TQFP STM32F103 about a year ago, got it to speak Arduino just fine. Of course, some Arduino libraries aren't ported, but it's a major step up from the Nano. Blue Pill

CW 99.99% of time? ... now where did I put that mic ...

If you google "git for windows" you'll find the windows version of git and a bunch of other links, eg. git for mac, ... Vince.

Thanks Bob!? The "N/C" meaning "Normally Closed" makes sense.? Should have realized it myself! -Jonathan

Jerry, I agree.? The various STM "pill boards" sound promising and are --very-- cheap.....did you know there are 17 different STM32F103 products out there and the STM32F103C8 is one of the

Thanks to everyone for their accolades. Glad most find the wiring diagram of value.? Patrick:? The original file is a CAD DWG. Writing it out as a PNG should be doable. Having it live on your Wiki

There's thousands of people on this forum with thousands of different opinions of when it's appropriate to start a new thread. I'm perfectly fine with having a conversation that goes somewhere. And if

Yes, the "RobotDyn SAMD21 M0-Mini" is very similar to the "Protoneer" but 2x to 3x more expensive and I don't see any advantage, offhand ??? ? 73 Kees K5BCQ

He asked if there were other small boards out there. I suggested one. The STM32 boards come in several flavors, including one that uses the Arduino NANO layout, called the Blue-Pill board. They are

Guess the Topic is LOW END NANO Replacements with more memory/function .....like the Protoneer boards, STM32F103C8T6 boards, and ?? Not worth starting ...another... thread. 73 Kees K5BCQ

Yes, the STM32F103C8T6 boards ("blue pill", "black pill") are another very low cost (<$3) alternative and it looks like the market is being flooded with them. It will require someone more experienced

I have a CW filter from New England QRP the NESCAF switched capacitor audio filter. Mine works great with the uBITX and others have had good success as well.? It lets you very both center frequency

Only two left on Amazon. https://www.amazon.com/RobotDyn-M0-Mini-Compatible-Arduino-Soldered/dp/B071PF1JWL/ref=sr_1_2?ie=UTF8&qid=1524600415&sr=8-2&keywords=samd21

What does that have to do with this topic? rOn

Looks like there are some on amazon as well.

https://www.ebay.com/itm/2pcs-STM32F103C8T6-ARM-STM32-Development-Board-Module-Blue-Pill-ST-Link-V2-USA/292168190439?epid=2164946341&hash=item440694c9e7:g:OLIAAOSwKoRZatNr _._

You read my mind... Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand Piton

Thanks for setting up a new thread, Gary. I bet Protoneer wonders where all the orders are coming from.....the power of uBIT-X and a lot of builders. Apparently this has been out there for a number