https://github.com/g1ojs/g1ojs_tiny_si5351_clk0

Sets Si5351 CLK0 frequency from 100 MHz to 150 MHz using just 1446 bytes of program storage space on an ATTiny85. I made an effort to provide explicit references to the Si5351 Data Sheet and Application Note AN619 for all significant programming decisions and calculations.
https://github.com/g1ojs/g1ojs_tiny_si5351_clk0

arduino attiny85 ham-radio hamradio si5351 si5351-library si5351a

Last synced: 3 months ago
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Sets Si5351 CLK0 frequency from 100 MHz to 150 MHz using just 1446 bytes of program storage space on an ATTiny85. I made an effort to provide explicit references to the Si5351 Data Sheet and Application Note AN619 for all significant programming decisions and calculations.

• Host: GitHub
• URL: https://github.com/g1ojs/g1ojs_tiny_si5351_clk0
• Owner: G1OJS
• License: mit
• Created: 2025-06-15T13:17:59.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2025-06-17T16:17:27.000Z (about 1 year ago)
• Last Synced: 2025-09-14T21:42:53.316Z (10 months ago)
• Topics: arduino, attiny85, ham-radio, hamradio, si5351, si5351-library, si5351a
• Language: C++
• Homepage:
• Size: 48.8 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# G1OJS_Tiny_Si5351_CLK0

Sets Si5351 CLK0 frequency from 100 MHz to 150 MHz using just 1446 bytes of program storage space on an ATTiny85.

I wrote this to 

  - learn how to program the Si5351

  - create material that links that learning directly to the guidance and nomenclature in the datasheet and application note

  - support my [Airband Scanner On An ATTiny85 project](https://github.com/G1OJS/ATTiny85-Scanner-Radio) (different repo, not an example here).

I hope you find it useful for the same or similar reasons!