Timer IC 555 Calculator

Calculation of astable and monostable circuit

App info

Version :

3.4.90

Category :

Tools

Update :

April 26, 2025

Installs :

258,297

Developer :

Peter Ho

Requires Android :

Android 5.0+

Content Rating :

Everyone

Get it on :

Download APK

App description

Android App Analysis and Review: Timer IC 555 Calculator, Developed by Peter Ho. Listed in Tools Category. Current Version Is 3.4.90, Updated On 26/04/2025 . According to users reviews on Google Play: Timer IC 555 Calculator. Achieved Over 258 thousand Installs. Timer IC 555 Calculator Currently Has 2 thousand Reviews, Average Rating 4.5 Stars

IC 555 is a basic timer IC for hobbyist or electronic engineers. This app is used to calculate monostable and astable circuit

Features:
1. Calculate monostable circuit
2. Calculate frequency of astable circuit
3. Calculate component values of monostable and astable circuit. Save component values in CSV file (Excel file)

Features in PRO version only:
1. Selectable preferred value of resistors and capacitors
2. Share CSV file to other apps
3. No limitation
4. No Ad

Note :
For those who need support please email to the designated email.
Do NOT use either the feedback area to write questions, it is not appropriate and that is not guaranteed that can read them.

We are currently offering version 3.4.90. This is our latest, most optimized version. It is suitable for many different devices. Free download directly apk from the Google Play Store or other versions we're hosting. Moreover, you can download without registration and no login required.

We have more than 2000+ available devices for Samsung, Xiaomi, Huawei, Oppo, Vivo, Motorola, LG, Google, OnePlus, Sony, Tablet ... with so many options, it’s easy for you to choose games or software that fit your device.

It can come in handy if there are any country restrictions or any restrictions from the side of your device on the Google App Store.

What's New

3.4.90
- Fix minor bugs

3.1.0
- Support dark theme

3.0.5
- Remove storage permission

Rate and review on Google Play store

4.5

2,357 total

5 68.6

4 21.9

3 4.7

2 2.8

1 1.9

Total number of ratings

Total number of active users rated for: Timer IC 555 Calculator

Total number of installs (*estimated)

Estimation of total number of installs on Google Play, Approximated from number of ratings and install bounds achieved on Google Play.

Recent Comments

A Google user

I have not had any problems with this app. I only occasionally use it, but would not be happy about erasing it from my phone. I used the app today to make a turn signal flasher for a scooter. I like the app has circuit applications. If you're bored and just want something to do and have some 555 chips there is weeks and possibly months of fun u can get from this app. Thanks

Kassim Abba Dandago

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.

A Google user

This is an excellent handy little tool for adjusting 555 timer chips. If u build any circuits using them, you absolutely cannot go wrong by installing this.

joe woodchuck

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.