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.BruceOn 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 chargerLarger 3.2" display.Built-in speaker?+ External audio out jackRuns 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
I am starting a project description of the handheld "pocket" tutor.The overview is at:??More to follow.BruceOn 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 chargerLarger 3.2" display.Built-in speaker?+ External audio out jackRuns 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
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 chargerLarger 3.2" display.Built-in speaker?+ External audio out jackRuns 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
