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In my last post, I had the incorrect number for the encoder. The correct p/n is: PEC11R-4215K-S0024-ND The JST battery connector and short female headers can be ordered from Adafruit. Ken WB2ART

Hi guys. I finished the Pocket Tutor this morning. The Pocket Tutor software works great. I did make a change to the defaults. Changed the default code speed to 21, the default call to my call and usepaddles=true. The build went well, with not too many mistakes. I did end up installing the volume control where the encoder should be. A quick vacuum desoldering and that was corrected. I also installed the speaker upside down. That was also desoldered and corrected. I would suggest reading Bruce's soldering smd pdf, on his website. I was not at all familiar with the mcu or audio amp chips. I had to refer to the pcb picture in PocketTutor6.pdf, to see how the chips lined up. I did make an annotated picture of the pcb, with the proper orientations of the chips and speaker. I will put a copy in the files section when I'm satisfied with it. I'd be happy to answer any questions, if I can, on my build. 73 Ken Kaplan WB2ART

Attached are photos of a Morse Tutor prototype I built. Some features: Handheld: 110 x 60 x 20 mm (roughly) Li-poly battery or USB powered, with built-in battery charger Larger 3.2" display. Built-in speaker + External audio out jack Runs the same code-base at the Blue Pill. The construction is mainly SMD. The "enclosure" is a PCB sandwich. It is a work in progress so I don't have many details. But if anyone wants a great way NOT to make a power supply, I can help. Bruce w8bh.net

Has anyone done the Blue Pill programming using Windows that has written up the procedures? I was trying to find the binaries as the group home page /g/w8bhMorseTutor and going to the #stm32 link there it shows 3 threads. The first thread description says the binaries are at https://gi but I gather the description field would not take the entire url. I saw Ken's write up for programming using Linux /g/w8bhMorseTutor/topic/69197390?p=,,,20,0,0,0::relevance,,%23stm32,20,2,0,69197390,ct=1&ct=1 I am wondering if anyone using Windows that has programmed the Blue Pill has a tutorial for programming the Blue Pill and would consider posting it to the files section here? I did not see much of a reference to actual programming in Bruce's fantastic tutorials on his web site. Is anyone still working on this project during your isolation? Thank you. Jim Pruitt WA7DUY

Here is an example of my latest approach to prototyping, a POC (proff of concept) breadboard with an Arduino Nano in an expansion board prewired to an I"C 16x2 LCD, a rotary encoder that can be switched to A0/A1 or D2/D3 or disconnected, an encoder switch to A2 and another switch to A3. All wiring is done from underneath so all the Nano ports and multiple Vcc and Gnd connection pins are accessible. In the photo an OLED display and a Si5351 DDS on the small breadboard are connected using I2C. A second Nano and rotary encoder are for the moment mounted on the larger breadboard. and connect to an adjacent SPI TFT display. When not powered from a PC, I use either a 5V mobile phone power bank and a USB lead or a couple of 18650 batteries to Vin. How do you do your prototyping? 73, Bob GM4CID

John, N6API, created nice 3D printed cases for the rectangular and square Morse Tutor PCBs. Thanks John! I've posted them on my github account at: https://github.com/bhall66/morse-tutor/tree/master/Cases/N6API If anyone else has a case that they'd like to post, please let me know. Bruce w8bh.net