Hi Ken
Well, the pcb's were $23.40, as I used DHL express shipping at $17.50.
(I do have 2 pcb's I'd want to sell).
The speaker volume is a bit low, not at all like the original morse tutors.
But the headphone volume is ear-splitting!!!
Parts were $33.14 + shipping from Digikey. I did not order the battery
connector, as I had one already.
I substituted a different encoder, as they were out of the one Bruce used.
I only have extra resistors and caps, the cheap stuff...hi...hi
I only have through hole parts in the 'junk box'.
I really like the pocket tutor, as it's small, and battery powered.
Need to get a case. I have people from my microcontroller club that
have 3d printers, so I may press one of them into printing a case.
If you know of anyone who wants to purchase the old morse tutors
(built and working),
I have 4 to sell. 2 with esp32 and 2.2 in display, and 2 with the
larger display.
73
Ken WB2ART
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On Sat, Aug 8, 2020 at 3:37 PM Ken KM4NFQ <km4nfq@...> wrote:
Hello Ken W*2ART,
That looks very helpful Ken.
Thanks for making it.
I have never worked with an SMD speaker before. How does it sound?
Also, since you are one of the first ones to complete a PocketTutor,
about how much did it cost you, total, including the PCBs? I usually
order at least ten of each component to get a small discount on each
part. I usually order from Mouser Electronics. Also, I would imagine
that you already had some common resistors and capacitors in your junk
box. So a ballpark estimate would be fine, if you please. It is always
helpful to hear from early adopters. 8^D
Regards,
Ken, KM4NFQ "Not Fully Qualified"
/g/w8bhMorseTutor
On Sat, Aug 8, 2020 at 2:30 PM Ken Kaplan <wb2art@...> wrote:
When I built the Pocket Tutor, I had never worked with mcu's, audio chips and speakers.
So I have attached an annotated pcb just to assist if your confused on part orientation, like I was.
Ken WB2ART
Ken KM4NFQ