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README.md Create README.md Feb 12, 2017
charliestar.asm First commit Feb 11, 2017
charliestar.hex First commit Feb 11, 2017

README.md

Source code to the CharlieStar project on mitxela.com. Runs on an ATtiny9, drives six charlieplexed LEDs from the three IO pins. Works great with a 3V lithium coin cell. Pressing the reset switch cycles through the following modes:

  • pulsate in a swirling pattern
  • flash a message in morse code
  • flicker (uses a pseudorandom number generator)
  • power-off

The morse code message is in program memory at line 342, it's a zero-terminated string that can be up to 127 characters.