Hello Bruce W8BH,
The cool thing about releasing the draft PDFs is that many eyes usually see more than two eyes. I am glad that my nit-picky suggestions were considered.
All of these PDFs are very educational. I like the way you explain everything so clearly.
I am looking forward to the Audio part. !!!
Your Portable Morse Code Tutor is looking like it might be a good ARC project? If the COVID19 pandemic ever allows groups to get together again?
On Wed, Jul 8, 2020 at 8:12 AM Bruce Hall < bhall66@...> wrote: Thanks Ken, I am indebted to your careful proofreading.? ?The corrections are now in place.
Bruce
On Wed, Jul 8, 2020 at 8:04 AM Ken KM4NFQ < km4nfq@...> wrote: Hello Bruce W8BH,
I really enjoyed that microcontroller part !!!
I have now had a chance to sit down and read each part carefully.
Here are a few suggestions that you may consider for all three parts, so far:
part 2 pg 2
having a very lower Vdo is important.
suggested:
having a much lower Vdo is important.
part 2 pg 4
Pin 1 if the MCP73831 is the status line.
suggested:
Pin 1 of the MCP73831 is the status line.
part 2 pg 4
What resistor value should be use?
suggested:
What resistor value should be used?
or:
What resistor value should we use?
part 2 pg 4
to a microcontroller input, so that you the application also knows
suggested:
to a microcontroller input, so that the application also knows
or:
to a microcontroller input, so that your application also knows
part 3 pg 1
flash memory, used by Morse Code Tutor to store its settings,
suggested:
flash memory, used by the Morse Code Tutor to store its settings,
part 3 pg 4
Let¡¯s add connect the pushbutton, resistor, and capacitor to the
suggested:
Let¡¯s add and connect the pushbutton, resistor, and capacitor to the
part 3 pg 4
The datasheet for the
STM32 recommends bypass capacitor for every set of
voltage pins on the microcontroller.
suggested:
The datasheet for the
STM32 recommends a bypass capacitor for every set of
voltage pins on the microcontroller.
or:
The datasheet for the
STM32 recommends bypass capacitors for every set of
voltage pins on the microcontroller.
I know those are all very nit-picky, and the drafts were very understandable as written, but I can't help it. I think it is an OCD thing? 8^D
On Tue, Jul 7, 2020 at 7:55 PM Bruce Hall < bhall66@...> wrote: Thanks Ken. Here is a draft of the microcontroller part:
- Bruce
?
On Tue, Jul 7, 2020 at 7:27 PM Ken KM4NFQ < km4nfq@...> wrote: Hello Bruce W8BH,
That is very educational. Nice work.
I am looking forward to the microcontroller part.
Regards,
Ken, KM4NFQ "Not Fully Qualified"
/g/w8bhMorseTutor
On Tue, Jul 7, 2020 at 4:19 PM Bruce Hall <bhall66@...> wrote:
>
> I just posted a draft of the second part to:
>
>
> - Bruce
>
>
>
> On Sun, Jul 5, 2020 at 2:17 PM Bruce Hall <bhall66@...> wrote:
>>
>> I am starting a project description of the handheld "pocket" tutor.
>> The overview is at:?
>> More to follow.
>>
>> Bruce
>>
>>
>> On Sat, Jun 6, 2020 at 8:45 PM Bruce Hall via <bhall66=[email protected]> wrote:
>>>
>>> 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
>>>
>>>
>>>
>>>
>
|
Ken KM4NFQ