• Electronics Toolbox 1
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Electronics Toolbox

This app is a collection of basic electronic calculators. It is suitable for hobbyist, electronic engineers or professionals.
This is the free version, which contains ads; you can also buy from the Market the PRO version of the app to support the developer, unlock more features and get rid of the ads.

Features
• Calculate resistance of 2 resistors in series / parallel
• To find out combinations of 2 resistors in series / in parallel making a desired resistance
• Calculate resistor values of voltage divider and find out combinations of resistance making a desired ratio
• Calculate resistor values of inverting amplifier gain and find out combinations of resistance making a desired ratio
• Ohm's Law calculation
• Star-delta conversion
• RC charging circuit : Calculate time constant by R and C
• RC Filter : Calculate cutoff frequency by resistor and capacitor value and find out combinations of resistance and capacitance making a desired cutoff frequency
• RL Filter : Calculate cutoff frequency by resistor and inductor value and find out combinations of resistance and inductance making a desired cutoff frequency
• LC Filter : Calculate resonant frequency by capacitor and inductor values and find out combinations of capacitance and inductance making a desired resonant frequency
• Calculate monostable circuit
• Calculate frequency of astable circuit and find out combinations of capacitance and resistance making a desired astable frequency

Features in PRO version only:1. No Ads2. No limitationPro version : http://play.google.com/store/apps/details?id=com.peterhohsy.eecalculatorpro

Note :1. 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.

Category : Tools

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Reviews (30)

Ond. N. Jan 17, 2022     

This is brilliant. Really, when I saw how many things are in this app, I was mindblown. Nevertheless there is one detail I noticed that someone could easily miss in my opinion: the physical quantities and units table is great (although there's a typo - kevin instead of kelvin) but I think that it would be nice to add also expressions of given units in SI base units. And I don't know if you're planning it, but adding a list of some useful physical constants would be another welcome improvement.

Ste. C. Apr 4, 2022     

Since you force me to rate your app before I can see it or use it and ads cover up my screen and won't close, I give you 1 star because that's the lowest I can give. I couldn't even use your app. And because of this money hungry greed, it is uninstalled as of right now! Sad...

Amr. R. Apr 30, 2022     

It's super for everything... Good design and good abilities have it, thanks for the app

Rob. V. Jan 22, 2022     

Great tool for learning .it is very informative ,and I like that whatever knowledge I want or need is there ,easy enough to find ,but it doesn't spoon feed you ,which is more my style .I don't mind having to ferret out my answers .I truly like this app.5 stars .developers ,great job

Jes. B. Feb 5, 2022     

This handy app is very useful to carry in my cellphone for whatever the question I could have in the field of electronics.

Ken. B. May 21, 2022     

Great tool for engineers. Wish I had it sooner.

T. B. Aug 9, 2021     

Once you pick an option, there is no method to move back to prior screen? You must cancel the app and start over! The UI/UX testing on this app is lacking. It is now being deleted from my phone!

Ted. K. Mar 23, 2022     

Great little app! Very handy for quick calculations.

FS3. 3. Dec 26, 2019     

Check out the app & it very quickly tells you that you can only perform 10 operations (given no advance warning of this caveat) within the app before it refuses to do anything except display ads and tell you to buy the paid version. Then when you try to exit/close to uninstall it displays another ad & disables your key. If Peter Ho of HK has participated in any of the recent demonstrations he might take a moment to reflect on the concept of revolution beginning with oneself.

Bri. T. Jan 3, 2022     

A nice range of capabilities that allows you to explore the world of circuitry.

And. F. Dec 22, 2021     

So many features and an all in one solution for near everything circuit to microcontroller to raspberry pi.

Joh. C. Mar 17, 2022     

Awesome program dev 🌟🌟🌟🌟🌟. I wish all developers could give such a useful update description. I am so over them saying, "Updates and bug fixes." I'm like, which bugs what updates. Or better yet, the classic "No information has been given by the developer."

Kha. A. Mar 12, 2022     

Very complete toolbox, thanks for the developers

Chr. H. Jun 4, 2021     

Overwhelmed by the sheer volume of information that is available. I rarely write reviews or rank apps usually only when truly impressed or totally pissed off. Thank you very much for your time and dedication, Sincearly, from cincinati, Ohio. -Christopher A. Heil

Blu. D. Sep 27, 2021     

I haven't got to use the app yet... upon first exploration of the newly installed app à windows popped up interrupting my progression of the app itself with a window asking if I was gonna spend some money basically, there were three options and I clicked share since there wasnt option on there even remotely close to "no thanks" option I would have chose, had it even been there.. And then another window (also disrupting my progression) asking if I would like to rate. Can I use the app NOW????PLz

123. 1. May 1, 2022     

Please add section called (simple start in electricity) for non professional persons.

Phi. J. Jun 30, 2021     

Describe my EXPERIENCE: I have been "in" Electronics since I built my first RADIO in 1958. So, this gets a FIVE STAR Rating based upon DECADES of using various electronic guides and books. I can not wait until I get the Ads Free edition for the other programs added in the Pro Ed.

Roy. M. Nov 20, 2021     

Brilliant. All in one place and accurate. Wish I had this when I was 20 years old. It would have been a life time tool. Thanks for the Application detail and useful layout.

Kha. K. Feb 22, 2021     

This is a really clean and smooth app. The interface is simple and easy to use and it's easy on the eye. There are alots of functions.

Hal. E. Apr 24, 2020     

Great app, everything needed to review and expand knowledge in electronics. I highly recommend it for students as well as hobbyists.

Cha. J. Feb 25, 2020     

And on the 8th day God created this app! But in all Seriousness this app was obviously created out of someone wanting to have all there stuff in one place and i can't recommend this enough I absolutely love this app and you can tell this is a passion project through and through

Ali. S. M. Nov 4, 2019     

Excellent app, really helpful. I highly recommend it especially to Electronics or related engineering field students

Lar. C. P. Jan 15, 2022     

Verry handy tool. It's an asset not a liability. 🤕 This developer is most certainly here to exceed his customers expectations through employee involvement and continues improvement ! 😌

Sul. K. Jan 5, 2022     

Its magnanimous and spontaneous with exquisite knowledge on this toolbox understanding and entirely summarised 5ratings for them

Sim. P. Oct 10, 2018     

Handy calculations, quick & easy without having to type in entire formulas.

Uma. H. M. Jan 3, 2022     

I really like this app, cuz it have a lot of education

Mah. K. Feb 3, 2022     

Very nice app with lot of information.

Jp. N. Jan 20, 2022     

Wow very helpful and worth while having this app.

che. Jun 28, 2019     

Very helpful Electronics App. The calculator portion can even be used off line. Thanks 4 this very well produced electronics App.

Chr. L. May 31, 2019     

Storage permission needed for CSV export. I don't need CSV export, but app completely doesn't run if storage permission isn't granted, even if you aren't exporting CSV.