https://github.com/nyh-workshop/pic16f1579-music-box-pbver
PIC16F1572 three channels square waves with decay envelope music box
https://github.com/nyh-workshop/pic16f1579-music-box-pbver
pic16f
Last synced: about 2 months ago
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PIC16F1572 three channels square waves with decay envelope music box
- Host: GitHub
- URL: https://github.com/nyh-workshop/pic16f1579-music-box-pbver
- Owner: nyh-workshop
- Created: 2017-12-01T16:10:06.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2022-12-03T13:40:10.000Z (over 2 years ago)
- Last Synced: 2025-01-19T19:58:27.506Z (3 months ago)
- Topics: pic16f
- Language: C
- Homepage:
- Size: 66.4 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
# pic16f1572-music-box-pbasic
This is a proof of concept project for the case study in Hackaday.io: https://hackaday.io/project/28016-case-study-a-polyphonic-pic18f-music-box and from this link also: http://www.protonbasic.co.uk/content.php/849-Making-Polyphonic-Music-with-PICBASIC-and-the-Proton-Compiler
A very early prototype of this is at the page: https://github.com/uncle-yong/PIC12F1572-Music-Box
Video of the project: https://youtu.be/aWSiTR5RM2M
It uses a PIC16F1579 running at 32MHz and three independent PWM as square wave generators and each of them is with a decay generator. The song is converted from midi and parsed by using Len Shustek's miditones. https://github.com/LenShustek/miditones
The related schematic is at the hackaday.io page: https://hackaday.io/project/28016-case-study-a-polyphonic-pic18f-music-box/log/71114-man-some-roadblocks-and-it-works
This is using MikroC for PIC and compiles within the demo limit.
Issues:
- Higher note frequencies may be off.
- Do not turn the LM386 volume to maximum. It doesn't sound good anymore and you won't be able to hear the decays.
- Finding midi files with only three voices is a tough mission. Miditones had to drop the extra voices in the midi parser if three channels are only used.
Notes:
- I have misplaced the link for some of the really nice sounding midi Christmas tunes. When I found them, I'm placing them here for references.