Timer IC 555 Calculator

4.0.15

Peter Ho

4.54

2,213 reviews

100,000+
Downloads

Free

Calculation of astable and monostable circuit

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About Timer IC 555 Calculator

Timer IC 555 Calculator is a tools app developed by Peter Ho.

Download Statistics

Timer IC 555 Calculator has been downloaded 270 thousand times. In the last 30 days, the app was downloaded 300 times.

User Ratings

Timer IC 555 Calculator is rated 4.54 out of 5 stars. The rating is based on 2.2 thousand ratings.

App Information

Timer IC 555 Calculator is FREE to download. The APK download size is 5.03 MB. The latest version available is 4.0.15. The last update was on March 22, 2026.

Technical Requirements

Timer IC 555 Calculator requires Android 5.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play December 2013.

Description

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

More data about Timer IC 555 Calculator

Price	Free to download
Total downloads	270 thousand
Recent downloads	300
Rating	4.54 based on 2.2 thousand ratings
Ranking	Not ranked
Version	4.0.15
APK size	5.03 MB
Number of libraries	15
Designed for Android	5.1+
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Alternative downloads for the Timer IC 555 Calculator app

Google Play Rating history and histogram

1.6K

400

130

Downloads over time

Timer IC 555 Calculator has been downloaded 270 thousand times. Over the past 30 days, it averaged 10 downloads per day.

Changelog of Timer IC 555 Calculator

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Developer information for Peter Ho

Peter Ho

peterhohsy@gmail.com

N/A

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Comments on Timer IC 555 Calculator for Android

★★★★☆ Al Wristen · Jun 27, 2021

Had enough circuitry using 555 to be instructive and useful.

★★★★★ Stephen Paul · Jun 1, 2022

This is one of those apps that you read on the loo, it's very inspiring.

★★★★★ Raid Hhi · Sep 26, 2019

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.

★★★★★ Roger Hale · Nov 13, 2019

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 circuited 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

★★☆☆☆ Rudo Strydom · Jan 7, 2021

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.

★★☆☆☆ Kassim Abba Dandago · May 30, 2020

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.

Google Play Rankings for Timer IC 555 Calculator

This app is not ranked

Technologies used by Timer IC 555 Calculator

Timer IC 555 Calculator is requesting 5 permissions and is using 16 libraries.
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