Electronics Toolbox Pro

Installs

2.6k

Rating

4.8

Rating count

< 500

Category	Tools
Developer	HO SIU YUEN
Price	1.99
First release	1/27/2014 (12 years ago)
Version	5.6.00
In-app purchases	No
Contains ads	No
Content rating	USK: All ages
Package name	com.peterhohsy.eecalculatorpro

View on Play Store

Core Metrics

Data Breakdown

Date	Rating Count	Average Rating	Installs	Version
5/24/2025	181	4.778	2,582	N/A
5/22/2025	180	4.778	2,581	N/A

Details

This app is a collection of basic electronic calculators. It is suitable for hobbyist, electronic engineers or professionals.

Basic tools
• Resistor color code
• Inductor color code
• Resistor SMD marking & EIA-96
• dBm, dbW, dBuV converter
• Resistors in series
• Resistors in parallel
• Two resistors in ratio
• Voltage divider
• Ohm's law
• Y-Δ converter
• L, C reactance
• Complex number operation
• RC charging time constant
• RC filter
• RL filter
• LC circuit
• 555 monostable
• 555 astable
• Wheatstone bridge
• Trace width calculator
• Battery capacity
• Operational amplifier
• LED calculator
• RMS calculator
• Range calculator
• Temperature conversion
• BJT bias voltage
• Voltage regulator
• Shunt regulator
• Length converter
• Limit 10 combinations of component values


Digital Tools
• Number converter
• Logic gates
• DAC R-2R
• Analog-to-digital
• 7-segment display
• Minimization of boolean function
• Half adder & full adder
• Synchronous counter up to 6 states
• Cyclic redundancy check CRC-8, CRC-16, CRC-32
• Hamming code


Electronics resources
• SI unit prefix
• Physical quantities
• Circuit symbol
• ASCII table
• 74xx series
• CMOS 40xx series
• Pinouts
• C programming language
• Python language
• Common linux command for Raspberry Pi
• Resistivity table
• Permeability table
• Permittivity table
• Ampacity table
• AWG table
• Standard wire guage (SWG) table
• World plug
• EDA software
• Flip-flop
• SMD marking 
• Formulas

Features in PRO version only
• No Ads
• No limitation of component values
• Selectable 1%,5%,10%,20% of values
• Complex matrix 
• Pi-pad attenuator
• T-pad attenuator
• Coil inductance
• Poles & zeros calculator

Pro 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.

All trade names mentioned in this app or the other documentation provided by this app are trademarks or registered trademarks of their respective holder. This app is not related or affiliated in any way these companies.

More Apps byHO SIU YUEN

My Bowling Scoreboard

Installs: 189,875Score: 4.61Ratings: 1,678

Price: N/A

Version: N/AReleased: 5/22/2014Last change: N/A

Easy Expense

Installs: 52,266Score: 0.00Ratings: 0

Price: N/A

Version: N/AReleased: 12/31/2014Last change: N/A

GPS Logger

Installs: 48,485Score: 3.55Ratings: 643

Price: N/A

Version: N/AReleased: 7/18/2013Last change: N/A

My Bowling Scoreboard Pro

Installs: 7,224Score: 4.60Ratings: 488

Price: N/A

Version: N/AReleased: 5/22/2014Last change: N/A

Archery Score Keeper Pro

Installs: 1,213Score: 0.00Ratings: 0

Price: N/A

Version: N/AReleased: 8/29/2014Last change: N/A

Easy Expense Pro

Installs: 1,186Score: 0.00Ratings: 0

Price: N/A

Version: N/AReleased: 12/31/2014Last change: N/A

More Apps inTools

Zapya - File Transfer, Share

Installs: 232,536,011Score: 4.57Ratings: 1,176,421

Price: N/A

Version: N/AReleased: 11/23/2014Last change: N/A

Beats

Installs: 10,330,228Score: 3.52Ratings: 22,790

Price: N/A

Version: N/AReleased: 10/29/2015Last change: N/A

Authenticator App: 2FA | MFA

Installs: 1,633,427Score: 4.45Ratings: 9,625

Price: N/A

Version: N/AReleased: 8/21/2023Last change: N/A

Xender - Share Music Transfer

Installs: 642,453,785Score: 4.60Ratings: 4,260,481

Price: N/A

Version: N/AReleased: 7/19/2013Last change: N/A

Find Your Phone by Clapping

Installs: 214,785Score: 0.00Ratings: 0

Price: N/A

Version: N/AReleased: 8/6/2025Last change: N/A

Auto Clicker - Automatic tap

Installs: 161,746,119Score: 4.28Ratings: 726,287

Price: N/A

Version: N/AReleased: 2/20/2019Last change: N/A

All Document Reader: PDF, Word

Installs: 3,866,851Score: 4.24Ratings: 9,828

Price: N/A

Version: N/AReleased: 10/25/2024Last change: N/A

Litron Pro VPN

Installs: 342,588Score: 4.40Ratings: 2,134

Price: N/A

Version: N/AReleased: 3/17/2025Last change: N/A

Happ - Proxy Utility

Installs: 1,571,345Score: 4.39Ratings: 3,017

Price: N/A

Version: N/AReleased: 1/21/2025Last change: N/A

VPN Master - Vpn Proxy Master

Installs: 260,920Score: 0.00Ratings: 0

Price: N/A

Version: N/AReleased: 9/5/2023Last change: N/A

All Devices Detector finder

Installs: 3,698,904Score: 4.58Ratings: 28,063

Price: N/A

Version: N/AReleased: 2/9/2021Last change: N/A

LITRON VPN

Installs: 383,024Score: 4.59Ratings: 4,308

Price: N/A

Version: N/AReleased: 10/21/2024Last change: N/A

ID Photo - Easy ID Maker

Installs: 5,265,564Score: 4.09Ratings: 3,816

Price: N/A

Version: N/AReleased: 4/16/2024Last change: N/A

Bolt VPN - Super VPN Proxy

Installs: 34,366,099Score: 4.42Ratings: 101,267

Price: N/A

Version: N/AReleased: 7/10/2023Last change: N/A

CozyWeather

Installs: 10,089Score: 0.00Ratings: 0

Price: N/A

Version: N/AReleased: 9/3/2025Last change: N/A

Bitdefender Mobile Security

Installs: 18,491,870Score: 4.70Ratings: 454,024

Price: N/A

Version: N/AReleased: 5/12/2011Last change: N/A

GBA Emulator: Classic Gameboy

Installs: 6,685,349Score: 4.22Ratings: 139,985

Price: N/A

Version: N/AReleased: 8/31/2022Last change: N/A

Calculator: Simple Calculator

Installs: 262,289Score: 3.82Ratings: 392

Price: N/A

Version: N/AReleased: 1/12/2025Last change: N/A

PDF Scanner - Document Scanner

Installs: 63,259,641Score: 4.76Ratings: 399,817

Price: N/A

Version: N/AReleased: 10/2/2020Last change: N/A

PhotoRecover Pro-File Recovery

Installs: 1,424,265Score: 4.11Ratings: 974

Price: N/A

Version: N/AReleased: 4/15/2025Last change: N/A

Shake Flashlight

Installs: 251,585Score: 3.71Ratings: 313

Price: N/A

Version: N/AReleased: 5/15/2025Last change: N/A

HD Player- Video&Downloader

Installs: 1,258,116Score: 3.86Ratings: 738

Price: N/A

Version: N/AReleased: 6/25/2024Last change: N/A

Super Antivirus - Clean Virus

Installs: 10,013,291Score: 4.61Ratings: 74,982

Price: N/A

Version: N/AReleased: 2/6/2024Last change: N/A

Smart TV Cast: Screen Share

Installs: 4,594,927Score: 4.40Ratings: 68,110

Price: N/A

Version: N/AReleased: 8/18/2023Last change: N/A

XTranslate - Photo, Voice, PDF

Installs: 14,627,852Score: 4.73Ratings: 93,053

Price: N/A

Version: N/AReleased: 3/14/2024Last change: N/A

Brother Mobile Connect

Installs: 5,245,855Score: 4.55Ratings: 125,755

Price: N/A

Version: N/AReleased: 6/30/2021Last change: N/A

SceneCraft

Installs: 22,992Score: 0.00Ratings: 0

Price: N/A

Version: N/AReleased: 9/2/2025Last change: N/A

CoinIn – Coin Scan Identifier

Installs: 876,185Score: 4.35Ratings: 10,738

Price: N/A

Version: N/AReleased: 6/2/2025Last change: N/A

CCleaner – Phone Cleaner

Installs: 143,094,792Score: 4.48Ratings: 2,956,950

Price: N/A

Version: N/AReleased: 6/10/2014Last change: N/A

ACE Player - Video Editor

Installs: 3,071,476Score: 0.00Ratings: 0

Price: N/A

Version: N/AReleased: 3/7/2025Last change: N/A

PhotoRevive

Installs: 415,919Score: 0.00Ratings: 0

Price: N/A

Version: N/AReleased: 7/11/2025Last change: N/A

PDF Reader - Editor & Viewer

Installs: 2,301,243Score: 4.16Ratings: 4,038

Price: N/A

Version: N/AReleased: 5/21/2024Last change: N/A

File Recovery - Photo Recovery

Installs: 12,946,349Score: 4.19Ratings: 20,362

Price: N/A

Version: N/AReleased: 3/9/2025Last change: N/A

Cleaner Antivirus VPN Cleaner

Installs: 31,365,961Score: 4.90Ratings: 537,087

Price: N/A

Version: N/AReleased: 4/27/2023Last change: N/A

NumberBox:Reverse Phone Lookup

Installs: 2,079,283Score: 4.46Ratings: 9,472

Price: N/A

Version: N/AReleased: 2/10/2023Last change: N/A

Epson Smart Panel

Installs: 22,958,164Score: 4.44Ratings: 355,676

Price: N/A

Version: N/AReleased: 3/24/2020Last change: N/A

Go back to the Home page