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Project Notes

#362 H83A Audio Effects Chip

Figuring out how to use the H-83A “12 songs” music chip.



The H-83A is yet another music chip, this time programmed with 12 tunes. I haven’t figured out all the songs, but they sound like classic Chinese folk tunes.


Usage and Schematic

This chip requires very minimal external components:

  • push-button switch
  • 180kΩ resistor
  • speaker (e.g. 8Ω)
  • 3-4.5V power

Songs start playing when the switch is pressed. Pressing the switch again will switch tunes. The song ends after one cycle (i.e. not infinite repeat!)

Volume is very decent without any amplification.



Here’s a demo FWIW. There is a bit of warbling, I think mainly due to imperfect breadboard connections.


Credits and References

About LEAP#362 AudioMusic Chips
Project Source on GitHub Return to the LEAP Catalog

This page is a web-friendly rendering of my project notes shared in the LEAP GitHub repository.

LEAP is my personal collection of electronics projects, usually involving an Arduino or other microprocessor in one way or another. Some are full-blown projects, while many are trivial breadboard experiments, intended to learn and explore something interesting (IMHO!).

The projects are usually inspired by things found wild on the net, or ideas from the sources such as:

Feel free to borrow liberally, and if you spot any issues do let me know. See the individual projects for credits where due. There are even now a few projects contributed by others - send your own over in a pull request if you would also like to add to this collection.