Timer IC 555 Calculator
Calculation of astable and monostable circuit
Total ratings
4.51
(Rating count:
2,344)Review summary
These summaries are automatically generated weekly using AI based on recent user reviews.
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spammy, or outdated. Pros
- Very useful for calculating component values related to 555 timer circuits
- User-friendly and fun to use
- Practical applications for home automation and other projects
- Handy tool for electronics enthusiasts and hobbyists
Cons
- Incorrect calculations in astable mode (e.g., duty cycle, timing equations)
- Limited detail in calculations and restricted functions
- Annoying pop-up ads that detract from user experience
Most mentioned
- Usefulness for designing circuits
- Errors in calculations
- Issues with pop-up ads
- User enjoyment and engagement with the app
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User reviews
Recent rating average:
3.50
All time rating average:
4.51
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| Date | Author | Rating | Comment |
|---|---|---|---|
| 2024-04-08 |  | | I thought this was going to give me the component values to use for the timing parameters I want. Instead I have to work this app backwards to approximate numerous times until I get somewhere near what I need. |
| 2023-11-29 |  | | First Class application, always refreshing experiencing. |
| 2022-10-14 |  | | Oh my goodness! Amazing concept generous and concise. |
| 2021-08-28 |  | | This app is very useful and its very good result. |
| 2021-06-27 |  | | Had enough circuitry using 555 to be instructive and useful. |
| 2021-04-02 |  | | easy and fun to use |
| 2021-01-07 |  | | There are a few mistakes. On astable t high = 0.69 (Ra+Rb) C, not 0.69 (Ra) C. T low is correct. T low = 0.69 (Rb) C Also on frequency f = 1.44 / (Ra+2Rb) C or 1 / 0.69 (Ra+2Rb) C, Not 1.44 / (Ra+Rb) C. In t high Rb is missing in the equation. In frequency, Rb is times 2. |
| 2020-06-08 |  | | Wrong calculation in astable mode duty cycle and high, low time |
| 2020-05-30 |  | | No detailed calculation. Constricted functions. Not fully calculable. You could have provided columns in which R1, R2 C, & % could be substituted to find a value or values. You deserve more star for your concern. I will be watching to add more stars, you have tried. Good luck. |
| 2020-01-08 |  | | Hi i like it because from this i can use my experience to do more circuits |
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