Chiptunes on an ATtiny4 and the 3 Cent Micro

A similar project, created by a ex-colleague of mine, with an ATtiny85, that also broadcasts the generated sound via FM: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=7t7_naYJnHo" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=7t7_naYJnHo</a><p>Here is the code running on the chip: <a href="https:&#x2F;&#x2F;github.com&#x2F;spookysys&#x2F;attiny-synth" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;spookysys&#x2F;attiny-synth</a>

I&#x27;m frankly amazed at how cheap getting PCBs made is these days. When I first started out my electronics hobby in the 00&#x27;s, everything I did that I wanted to be &quot;permanent&quot; was done on perfboard with through the hole parts, ordering PCBs was a pipe dream for a teenager funded mostly by birthday and Christmas gifts, even if the ads in Servo magazine suggested otherwise.<p>I took nearly a decade off (shifting into contract app&#x2F;game dev work, university, and then starting my career did not leave a lot of room for my electronics&#x2F;robotics hobby) and now the bargain basement price for a batch of 5 &quot;passable&quot; quality boards is &lt;= $10 (and &quot;good&quot; quality for &lt;= $50), surface mount parts suddenly became very accessible and to be honest, for some of the stuff I&#x27;ve played around with, the price savings by using SMT usually pays for the boards. DIPs are getting really expensive. It completely blows my mind.

Amazing work. Bravo.<p>If anyone is interested in an incredible piece of music along these lines, please do yourself a favour and check out<p>TRISTAN PERICH 1-BIT SYMPHONY<p><a href="http:&#x2F;&#x2F;1bitsymphony.com" rel="nofollow">http:&#x2F;&#x2F;1bitsymphony.com</a><p>(you can skip buying the hardware and find the music on Spotify and similar)

Hi, author here. What a nice surprise to see my project turn up here :)<p>If you have any questions, shoot!

Inspired and, unlike so many of my embedded projects, completed. Respect. Also a great writeup with video.

So this was trial-and-error on the hardware directly, without simulating it first in software?<p>I can&#x27;t imagine how tedious this must have been. It&#x27;s fascinating what can be archived with determination and this little piece of hardware.

Nice! It reminded me of this great little synth powered parasitically from the MIDI port.<p><a href="https:&#x2F;&#x2F;mitxela.com&#x2F;projects&#x2F;flash_synth" rel="nofollow">https:&#x2F;&#x2F;mitxela.com&#x2F;projects&#x2F;flash_synth</a>

Could sound better with a filter on the output.

Something I’ve wanted to do for a while but I lack time and SMD skills for is to build a neural net from individual ICs like this.