Timer IC 555
9.3 13
v2.5 by sweet_baked_pie
About Timer IC 555
Timer IC 555 (Package Name: net.seesaa.sweet_baked_pie.Timer555) is developed by sweet_baked_pie and the latest version of Timer IC 555 2.5 was updated on July 26, 2025. Timer IC 555 is in the category of Tools. You can check all apps from the developer of Timer IC 555 and find 47 alternative apps to Timer IC 555 on Android. Currently this app is for free. This app can be downloaded on Android 4.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.
The 555 is an industrial standard timer IC, this app calculates about it.
FEATURES
- Can limit the values of resistors/capacitor to E3/E6/E12/E24 series.
- Simple waveform which will be output.
- Calculating the frequency and duty cycle from resistors/capacitor.
- Reverse calculating the values of resistors/capacitor from frequency and duty cycle. And list up recommended parts.
- Supported operation is only Astable.
HOW TO USE #1
(1) Please input the values of resistor Ra, Rb and capacitor C.
(2) A frequency, duty cycle, and waveform are output.
HOW TO USE #2
(1) Please input the frequency and duty cycle.
(2) A list of recommended parts (resistor Ra, Rb and capacitor C) is output.
(3) Can use one of the list as the input of 'HOW TO USE #1', and can calcurate it again.
FEATURES
- Can limit the values of resistors/capacitor to E3/E6/E12/E24 series.
- Simple waveform which will be output.
- Calculating the frequency and duty cycle from resistors/capacitor.
- Reverse calculating the values of resistors/capacitor from frequency and duty cycle. And list up recommended parts.
- Supported operation is only Astable.
HOW TO USE #1
(1) Please input the values of resistor Ra, Rb and capacitor C.
(2) A frequency, duty cycle, and waveform are output.
HOW TO USE #2
(1) Please input the frequency and duty cycle.
(2) A list of recommended parts (resistor Ra, Rb and capacitor C) is output.
(3) Can use one of the list as the input of 'HOW TO USE #1', and can calcurate it again.
Timer IC 555 2.5 Update
v2.5- Added an option which sounds a result square wave.
- Updated the target API level to Android 15 by Google order.
- Fixed a bug that the previous wave is restored when rotated the screen.
Read More
Timer IC 555 Features
Previous Versions
More
Requires Android: Android 4.0+
Screen DPI: 160-640dpi
SHA1: 8c2181c0f32353d8642235c814fd8ad6c1b43f27
Size: 2.1 MB
What's New:
v2.5
- Added an option which sounds a result square wave.
- Updated the target API level to Android 15 by Google order.
- Fixed a bug that the previous wave is restored when rotated the screen.
- Added an option which sounds a result square wave.
- Updated the target API level to Android 15 by Google order.
- Fixed a bug that the previous wave is restored when rotated the screen.
Requires Android: Android 4.0+
Screen DPI: 160-640dpi
SHA1: 0680cb0e80731bc946767021cefe3cfbe4ef2525
Size: 2.09 MB
What's New:
v2.4
- Supported also Android 15.
- Fixed a bug not start in earlier than Android 8.0.
- Supported also Android 15.
- Fixed a bug not start in earlier than Android 8.0.
Requires Android: Android 4.0+
Screen DPI: 160-640dpi
SHA1: aae65eab94d78b33f81b36cb76777d86a1bb7567
Size: 2.13 MB
What's New:
v2.4
- Supported also Android 15.
- Fixed a bug not start in earlier than Android 8.0.
- Supported also Android 15.
- Fixed a bug not start in earlier than Android 8.0.
Requires Android: Android 4.0+
Screen DPI: 160-480dpi
SHA1: 47524157dfbcd08fb7d7383640c7f1d8f6ccab19
Size: 2.1 MB
What's New:
v2.0 - v2.3
- Updated development platform.
- Not supported the earlier than Android 4.0.
- Made be easier to see the graph.
- Disabled less than 100 ohm/pF because not realistic.
- Adjusted the size of the custom 10 keypad on tablet device.
- Updated development platform.
- Not supported the earlier than Android 4.0.
- Made be easier to see the graph.
- Disabled less than 100 ohm/pF because not realistic.
- Adjusted the size of the custom 10 keypad on tablet device.
More Information
Package Name:
Update Date:
2025-07-26
Latest Version:
2.5
Need Update:
Available on:
Requirements:
Android 4.0+
Report:
Safe to Download
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