Download 555 Timer Tool apk 1.03 free for Android smartphone

9 May
555 Timer Tool

Posted by Andrew Armstrong in Tools | May 9, 2013 | 24 Comments

Apk file size: 194.0 KB

This is a tool to help electronics hobbyists easily select component values for the ubiquitous 555 Timer chip.

You simply enter the frequency (or alternatively the delay period) that you want your 555 timer chip to run at - and an initial timing capacitor value - then the 555 Timer Tool calculates a list of the best combinations of other components that meet your requirements.

As a convenience, you can also use touch gestures to snap component values up or down to the next preferred value. To do that just stroke the values displayed on the circuit diagram. Stroke upward to adjust upwards, or stroke down to adjust downwards.

The preferred value range that values are snapped to is selected by choosing "Preferences" from the options menu.

For example, suppose you wanted a 555 timer to oscillate at 440 Hz (the A above middle C on the piano keyboard) then just:

- click the f (frequency) button on the circuit diagram, enter 440 then press the OK button

- click the C1 button on the circuit diagram, enter 47, then press the nF button, then press the OK button.

The 555 Timer Tool calculates combinations close to 440 Hz and updates the values on the circuit diagram with the closest combination.

How do you know to key in 47 nF as the initial value for C1? ...well, you don't - but you have to start somewhere and 47 nF is middle of the road!

Whats new

    - Fixed the duty cycle calculation
    - Enabled move to external storage

Andrew Armstrong part of our Tools and have average installs from 100000 to 500000. Last Update May 9, 2013. Google play rating is 81.2129. Current verison is 1.03. Actual size 194.0 KB.

Download 555-timer-tool.apk 194.0 KB

24 Comments

Tim Woods

Great for a hobbyist to plan a timer 555 chips are cheap and reliable and this will help to plan a project

Dilip Desai

i make harmonium used ic 555.in small box.touch and play...

Oscar Cortez

excellect application This is great training tool for electronics.

Liam Duncan

Did not do anything

Anisur Rahman

good thanks

umair khan drifter

I like this apps I like this apps

A Google User

Great app! Glad to see some android apps for the electronics and microchip people. Thanks dev!

A Google User

555 forever Very handy even these days

A Google User

Bypass diode Need update with bypass diode for dutycycle greater than 50%

A Google User

I will try it It looks great

A Google User

Very good tool Got to get this one

joao rendeiro

Great App. Although, it seems that the calculation of the duty cycle are incorrect.

A Google User

Nice one! Great!

A Google User

Great tool Awesome

A Google User

Just what i needed!

A Google User

Sound? Could sound be added to indicate frequencey when oscillation in the audio range? Excellent App:-)

Jeff Jordan

Can't get it to work Can't seem to get it to work on Nexus 7

A Google User

Monostable Need monostable schematic and calculations.

Bitan Saha

All hail the multivibrator!

A Google User

Thanks I needed

Indra Haryanto

Very Usefull... Thanks for the effort... this very usefull for design before start soldering...

Mr. McKinney

Blows Badly Limited options of input.

Mike Tyson

555 chip is a trip! :) 47nf?? "Clowns to the left of me- JOKERS TO THE RIGHT. NOW I.M STUCK IN THE MIDDLE WITH YOU!" :-) 47 IS SWEET KNOWLEDGE F9R SOME 1 WHO REFUSES SCHOOL. I AM AN INTERNET CHILD. SCREW SCHOOL & ALL THEIR IGNORANCE. SELF MADE PPL ROCK! TY FOR APP.. BTW(555IC TO PULSE NEO MAGNETS) SSHHHHH. ITS A SECRET.... school WILL NOT ACKNOWLEDGE RADIANT ENERGY/WATTS. TESLAS ROLLING OVER. SCHOOL IS FOR ROBOTS. A SLAVE FACTORY.

Jason Wohlgemuth

Needs a couple of features Would like to select duty cycle and the ability to lock some parameters. Like set 1khz 50% duty cycle and have it calculate capacitor and resistors.

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