LEAP#252 Message Waiting
This is a variation of a bi-polar LED flasher circuit that uses two single LEDs. Since that’s not very interesting, I free-wired it with surface mount components to make a little “message waiting!” indicator. Putting a card in the slot turns on the LED flasher. As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
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LEAP#251 The Lady
A fine specimen of Coccinellidae Boldportus, a new type of ladybird discovered in Bermondsey, London.
“The Lady” is Project #4 from The Boldport Club. It is a really simple circuit, and functionally nothing ground-breaking ..
but that really isn’t the point. It is just a stunning bit of PCB design. Yes, this is more art than electronics!
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
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LEAP#250 AudioDSP Library for the pedalShield UNO
When I built the pedalSHIELD UNO and a clone,
I started collecting my code in an AudioDspDriver class library.
I’m liking the encapsulation and reuse it provides over just hacking sketches based on
the pedalSHIELD examples.
So this project is an exercise in implement the equivalent of all the pedalSHIELD UNO examples.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
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LEAP#249 Guitar Practice Amp
This is a single-channel 10W guitar practice amplifier circuit based on the TDA2050 and was designed for the
Fundamentals of Audio and Music Engineering: Part 1 Musical Sound & Electronics course offered by University of Rochester on Coursera.
The amplifier itself is designed to teach simple tone and distortion circuitry.
I’ve built and tested the main board, now just need to make a cabinet on a spare weekend.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
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