Well, I ordered one a couple of days ago. Once I get a chance to play with it, I'll post a review . -- John P. WA2FZW

Would be interested in hearing thoughts about the recently available inexpensive ready built Chinese NanoVNA with a 2.8 inch touch screen. Also has PC software, I am impressed. 73 Bob GM4CID

Bruce: Excellent Job. Well done. First Class. Would make a good article or small book. Of course, as you know I have my hand built, which continues to work flawlessly! Certainly

Exactly. Searching the internet for "pin maps" (use the "images" option) and you can find use maps for the microcontroller of interest: The LED is hiding on physical pin #2 and can be seen in the

Curses on auto correcting spell checkers! The "multiplied I/O system" should be "multiplexed I/O system. Larry AC8YE

Unlike the ATMEGA 328 MCUs, the 32-bit ARM MCUs have a multiplied I/O system. Even the low-end ones like the 103 have a 1-of-6 I/O so there are many choices for the logical to physical connection. I

Jack, I agree it’s very confusing . Even on the Arduino Nano D13 is connected to physical pin 17 on the Atmel ATMega328. Programmers need to be aware that there is no direct correspondence (that

To add to the confusion, PC13 on the STM32 is actually physical pin #2. Jack, W8TEE

Well the sketch was probably written for an Arduino Nano. With the Nano the on board LED is tied between pin 13 and ground so to turn the LED on you would have to program the pin to HIGH. However

The pin designations are not an issue with me. The following confuses me. void loop() { digitalWrite(PC13, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait

Excellent work Bruce! I think having all components mounted on a single board is the best way to do this, especially for group builds. My 16 conductor ribbon cable wiring harness allows flexibility

All, Following in Dave KI4PSR's footsteps, I designed another PCB for the Morse Code Tutor. To keep costs down I am not selling the PCB. Instead, I am publishing the gerbers so that you can obtain

Sent. Should be in your email presently. 73, Gwen, NG3P

All: The Arduino family do tie the onboard LED to pin 13. However, it appears that other microcontrollers are free to use whatever pin they wish for the LED. A good place to start looking is on the

Just an update on my post made on Sep 7, # 6947. The original three, from an Amazon supplier, I have been unable to program . I purchased 5 from a Ebay supplier and they programed the first time I

Yes Bill, I have you on the list for two. Please send $26 to dave@... Dave, KI4PSR

You are on the list, please send $15 by paypal to dave@... Dave, KI4PSR

Can I get two? bill KB3YV

I'd like one, Dave. Paypal ok? Gwen, NG3P

My local group build is complete, and I have about 10 of these PC boards left. $15 each and then they are gone forever. Lemme know, Dave, KI4PSR