555 Calc

This App calculates registors value, when designing the circuit using Timer IC 555.

  1. Input Frequency value.
  2. Input Duty Ratio.
  3. Input C1 Value.
  4. Touch ‘Done’ button on keyboard.
  5. Registors value will be displayed.
  • Set Duty Ratio to 50 ~ 99.
  • If you set Duty Ratio to 50, R1 value will be set to 0.


If you have any questions, post to the following comment field.

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