Peter Ho Apps

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Electronics Toolbox 3.1.1
Peter Ho
This app is a collection of basic electronic calculators. It issuitable for hobbyist, electronic engineers or professionals. Thisis the free version, which contains ads; you can also buy from theMarket the PRO version of the app to support the developer, unlockmore features and get rid of the ads. Features • Calculateresistance of 2 resistors in series / parallel • To find outcombinations of 2 resistors in series / in parallel making adesired resistance • Calculate resistor values of voltage dividerand find out combinations of resistance making a desired ratio •Calculate resistor values of inverting amplifier gain and find outcombinations of resistance making a desired ratio • Ohm's Lawcalculation • Star-delta conversion • RC charging circuit :Calculate time constant by R and C • RC Filter : Calculate cutofffrequency by resistor and capacitor value and find out combinationsof resistance and capacitance making a desired cutoff frequency •RL Filter : Calculate cutoff frequency by resistor and inductorvalue and find out combinations of resistance and inductance makinga desired cutoff frequency • LC Filter : Calculate resonantfrequency by capacitor and inductor values and find outcombinations of capacitance and inductance making a desiredresonant frequency • Calculate monostable circuit • Calculatefrequency of astable circuit and find out combinations ofcapacitance and resistance making a desired astable frequencyFeatures in PRO version only: 1. No Ads 2. No limitation Proversion :http://play.google.com/store/apps/details?id=com.peterhohsy.eecalculatorproNote : 1. For those who need support please email to the designatedemail. Do NOT use either the feedback area to write questions, itis not appropriate and that is not guaranteed that can read them.
Secure delete Pro 3.1.8
Peter Ho
The application is to delete private files forever. It is suitablefor users who are going to sell their Android phones. Feature 1.Select photos in any folder 2. Secure delete private photos. 3.Support English, German, Spanish, French, Italian, Portuguese,Japanese, Trad. Chinese ,simplified Chinese and Russian Feature inPRO version 1. Secure delete any file type 2. Support folderdeletion 3. Select all files in a folder *** Deleted files CANNOTbe recovered *** Note : 1. For those who need support please emailto me Do NOT use either the feedback area to write questions, it isnot appropriate and that is not guaranteed that can read them.
G-sensor Logger
Peter Ho
The application capture the accelerometer sensor (or G-sensor) datainto a file Features 1. The magnitude, minimum and maximum arecalculated. 2. The captured data can be save in comma-separatedvalues (CSV) file for further analysis. The csv are located in SDcard "G-Sensor_Debug" folder. 3. Limit 10000 data points 4. Directupload CSV file to your Dropbox via built-in Dropbox engine 5.Support English, German, French, Italian, Spanish, Portuguese,Trad. Chinese, Simplified Chinese and Japanese Features in Pro only1. No limitation of data points 2. No ads Permission *Modify/delete SD card contents is used to write CSV file to SD card* Internet access is used for ad and Dropbox access * Prevent phonefrom sleeping is used to keep the screen on for user taking lap Howto use the app ? Press "Logging" to start logging accelerometerdata. To stop logging, press the button again Press menu->"Save"icon to save the logging data to CSV file Press menu->"Dropbox"icon to upload a selected file to you Dropbox. Note : For those whoneed support please email to the designated email. Do NOT useeither the feedback area to write questions, it is not appropriateand that is not guaranteed that can read them.
65536 1.4.8
Peter Ho
Have you finished the puzzle game 2048? Now, this puzzle game 65536is a more addictive puzzle game than 2048. You can play puzzle2048, 4096, 8192, 16384 ,32768 and 65536 !Good luck !Features1.Save game2. Undo function
NMEA Tools 1.8.2
Peter Ho
The purpose NMEA Tools is to log your RAW GPS information (NMEAsentences) to a file on your SD card. Also, it can parse a NMEAfile.Features:1. Log RAW NMEA sentences2. Display the route inGoogle Map 3. Show latitude, longitude, altitude, speed, PDOP andHDOP4. Support background logging5. Parse NMEA files6. View NMEAfiles7. Limit 9999 NMEA sentences per session8. Support GPS,GLONASS and BeiDou systems9. Support English, German, French,Italian, Spanish, Portuguese, Japanses, Trad. Chinese andSimplified ChineseFeatures in PRO version : 1. Log particular NMEAsentences1. No limitation of NMEA sentences in capturing andparsing2. No advertisement3. Support Dropbox file uploading usingbuilt-in Dropbox enginePermission* Modify/delete SD card contentsis used to write NMEA file to SD card* Internet access is used forad and Google Map* Prevent phone from sleeping is used to keep thescreen on for user taking lapHow to use the app ?Press top left"GPS" icon to enable GPS.Press "Log" button to start logging NMEAdata. To stop logging, press the "Log" button againPress "Save"icon to save the logging data to NMEA fileNote :1. For those whoneed support please email to the designated email.Do NOT use eitherthe feedback area to write questions, it is not appropriate andthat is not guaranteed that can read them.2. If you like this app,please purchase the PROversion.http://play.google.com/store/apps/details?id=com.peterhohsy.nmeapaserpro
Cube Timer
Peter Ho
The application records the time for completion of magic cubes3x3x3, 4x4x4 etc. Features 1. Scramble Generator 2. The best timeand average time are calculated. 3. Limit 500 records 4. SupportEnglish, German, French, Italian, Spanish, Trad. Chinese,Simplified Chinese and Japanese Features in PRO 1. Inspection timer2. Self-defined scrambler of your favorite cubes 3. Chart 4. Thetime records can be exported in comma-separated values (CSV) file.The csv are located in SD card "Cube_Timer" folder. 5. Directupload CSV to your Dropbox 6. Build-in file manager to launch csvfiles. 7. No limitation 8. No ad Permission * Modify/delete SD cardcontents is used to write CSV file to SD card * Internet access isused for ad and Dropbox access * Prevent phone from sleeping isused to keep the screen on for user taking lap How to use the app ?Tap the hand icon to reset the timer. The timer will start when youhand leave the icon. Tap the hand icon again to stop the timer.Press the top left "Records" icon, you can see all your records.Press a record to delete it. Note : For those who need supportplease email to the designated email. Do NOT use either thefeedback area to write questions, it is not appropriate and that isnot guaranteed that can read them.
SD Refresh 1.4.1
Peter Ho
Have you experience file created on your phone cannot be shown onPC ? I cannot find any solutions. So, I write this app. Features *Support both internal storage and external SD card * Foldersselection * Files selection
Cube Timer Pro
Peter Ho
The application records the time for completion of magic cubes2x2x2 ,3x3x3 and other magic cubes etc.Features1. ScrambleGenerator for magic cubes 2x2x2 ,3x3x3 2. Self-defined scrambler ofyour favorite cubes3. Chart4. The best time and average time arecalculated.5. Support English, German, French, Italian, Spanish,Trad. Chinese, Simplified Chinese and JapaneseFeatures in PRO1.Inspection timer2. The time records can be exported incomma-separated values (CSV) file. The csv are located in SD card"Cube_Timer" folder.3. Direct upload CSV to your Dropbox 4.Build-in file manager to launch csv files.5. No limitation6. NoadPermission* Modify/delete SD card contents is used to write CSVfile to SD card* Internet access is used for ad and Dropbox access*Prevent phone from sleeping is used to keep the screen on for usertaking lapHow to use the app ?Tap the hand icon to reset the timer.The timer will start when you hand leave the icon. Tap the handicon again to stop the timer.Press the top left "Records" icon, youcan see all your records. Long press a record to delete it.Press"Open" icon, to open previous saved CSV file. Press "Save" icon, tosave records to CSV file. Press "Erase" icon to clear allrecordsPress "Dropbox" icon to upload a selected file to youdropbox.Note :For those who need support please email to thedesignated email.Do NOT use either the feedback area to writequestions, it is not appropriate and that is not guaranteed thatcan read them.
Secure delete 3.1.5
Peter Ho
The application is to delete private files forever. It is suitablefor users who are going to sell their Android phones. Feature 1.Select photos in any folder 2. Secure delete private photos. 3.Support English, German, Spanish, French, Italian, Portuguese,Japanese, Trad. Chinese,simplified Chinese and Russian Feature inPRO version 1. Secure delete any file type 2. Support folderdeletion 3. Select all files in a folder *** Deleted files CANNOTbe recovered *** Note : 1. For those who need support please emailto me Do NOT use either the feedback area to write questions, it isnot appropriate and that is not guaranteed that can read them.
Quadratic equation 1.2.1
Peter Ho
This app is to calculate quadratic equations.Features• Solvequadratic equation• Show real roots and complex roots• Calculatemaximum or minimum point• Save result in text fileFeatures in PROversion only:• No Ads• Show equation in graphNote :1. For those whoneed support please email to meDo NOT use either the feedback areato write questions, it is not appropriate and that is notguaranteed that can read them.Tags : Quadratic equations
Easy Expense 3.2.9
Peter Ho
To keep tracks of income and expense, calculate balance and exportreport to CSV (Excel) file Features • Ease to use • Keep tracks ofincome and expense • Customize income and expense categories • Youcan modify or delete the records that you have created •Transaction searching • Split the bill and share the result •Export CSV file • Limit to 100 transactions • Database backup •Support English, German, French, Spanish, Italian, Chinese,Japanese Features in PRO only • Chart generation • Recurringexpense and income • Passcode protection • Restore database • ShareCSV file to other apps • No limitation of no. of transactions • Noads
NMEA Tools Pro 1.8.2
Peter Ho
The purpose NMEA Tools is to log your RAW GPS information (NMEAsentences) to a file on your SD card. Also, it can parse a NMEAfile.Features:1. Log RAW NMEA sentences 2. Display the route inGoogle Map 3. Support background logging4. Show latitude,longitude, altitude, speed, PDOP and HDOP5. Parse a NMEA file6.Support GPS , GLONASS and BeiDou systemsFeatures in PRO version :1. No limitation of capturing NMEA sentences2. NMEA sentencefilter3. No advertisement4. Support Dropbox file uploading usingbuilt-in Dropbox engine*** The NMEA logging function does not workon some phones. Please test your phone with the NMEA tools beforeyou buy the PRO version Permission* Modify/delete SD card contentsis used to write NMEA file to SD card* Internet access is used forad and Google Map* Prevent phone from sleeping is used to keep thescreen on for user taking lapHow to use the app ?Press top left"GPS" icon to enable GPS.Press "Log" button to start logging NMEAdata. To stop logging, press the "Log" button againPress "Save"icon to save the logging data to NMEA fileNote :1. For those whoneed support please email to the designated email.Do NOT use eitherthe feedback area to write questions, it is not appropriate andthat is not guaranteed that can read them.2. If you like this app,please purchase the PROversion.http://play.google.com/store/apps/details?id=com.peterhohsy.nmeatoolspro
Credit Card Verifier 1.2.2
Peter Ho
To check validity of credit card number* This application does notstore or send your credit card information. * No permission isrequired
My Bowling Scoreboard 3.6.13
Peter Ho
Bowling is my favorite hobby. I need an app to record down thescore and pin location for further analyst. For example, what isthe percentage of spare of “Big four”? or how many times ofcontinuous 4 strike ? So, I decide to write this app. Features: *Record bowling score or pin location in database * Retrieve scoreor pin location from a database * Show statistic of the score,strike, pin location * Export history to CSV file * Support 2bowler * Support max. 10 history records * Support English, German,French, Italian, Spanish, Portuguese, Chinese, Korean Features inPRO: * Support up to 3 bowlers * NO limitation of number of history* No ads Features in Ultra: * NO limitation of number of bowlers *NO limitation of number of history * No ads Pro versionhttp://play.google.com/store/apps/details?id=com.peterhohsy.mybowlingproUltra versionhttp://play.google.com/store/apps/details?id=com.peterhohsy.mybowlingultraPermission * Modify/delete SD card contents is used to write CSVfile to SD card * Internet access is used for backup/restoredatabase from cloud storage Note : For those who need supportplease email to the designated email. Do NOT use either thefeedback area to write questions, it is not appropriate and that isnot guaranteed that can read them.
8051 Tutorial 1.9.0
Peter Ho
This app is a 8051 tutorial based on C language. It is suitable forhobbyist or engineering students. Features • 8051 architecturereview • 8051 asm mnemonics • 8051 C lanugage • 12 projectsincluding LED, buzzer, key switch, external interrupt, 7-segmentdisplay, 8x8 led matrix, timer (mode 0,1,2) • Baud calculatorFeatures in Pro • More than 10 extra 8051 projects • Over 20 in-apppurchase projects • Create C source code of timer mode 0,1,2 • Datapattern code generator of 8x8 LED matrix • Extra projects : 4x4keypad, piano, serial debug monitor, 16x2 LCM, i2c eeprom, 93c46etc Pro version :http://play.google.com/store/apps/details?id=com.peterhohsy.C8051_tutorialproNote : 1. For those who need support please email to the designatedemail. Do NOT use either the feedback area to write questions, itis not appropriate and that is not guaranteed that can read them.MSC-51 are registered trademarks of Intel Corporation or itssubsidiaries, in the US and/or other countries. This application isnot related or affiliated in any way Intel Corporation.
G-sensor Pro
Peter Ho
The application capture the accelerometer sensor (or G-sensor) datainto a CSV file Features 1. The magnitude, minimum and maximum arecalculated. 2. Moving average filter 3. The captured data can besave in comma-separated values (CSV) file for further analysis. Thecsv are located in SD card "G-Sensor_Debug" folder. 4. Backgrounddata logging 5. Direct upload CSV file to your Dropbox via built-inDropbox engine 6. Support English, German, French, Italian,Spanish,Portuguese, Trad. Chinese, Simplified Chinese and Japanese7. No ad 8. No limitation Permission * Modify/delete SD cardcontents is used to write CSV file to SD card * Internet access isused for ad and Dropbox access * Prevent phone from sleeping isused to keep the screen on for user taking lap How to use the app ?Press "Logging" to start logging accelerometer data. To stoplogging, press the button again Press menu->"Save" icon to savethe logging data to CSV file Press menu->"Dropbox" icon toupload a selected file to you Dropbox. Note : For those who needsupport please email to the designated email. Do NOT use either thefeedback area to write questions, it is not appropriate and that isnot guaranteed that can read them.
八達通記帳 (專業版) 1.8.0
Peter Ho
八達通記帳(專業版) 利用NFC技術讀取八達通儲值卡的餘額及記錄消費項目特點* 可以在不上網情況下,讀取八達通儲值卡的餘額* 支持9位數字的八達通儲值卡(包括括號中的數字)* 可以記錄消費項目* 按月統計消費及增值* 匯出csv (Excel)檔案如何使用1. 如果你未有開啟NFC功能, 請按"NFC 設定"按鈕,並選取NFC.把八達通儲值卡效置於電話背後,當手機檢測到八達通儲值卡會顯示卡上的餘額.2. 當顯示卡上的餘額, 按"儲存"按鈕, 輸入消費備忘,再按"儲存"按鈕3. 假設你已開啟NFC功能, 另一種方法啟動程式是直接把八達通儲值卡效置於電話背後, 選取Octo-Expense app.注意:1. 當你把八達通儲值卡貼近手機時, Octo-Expense 軟件不能彈出, 而是開啟其他八達通程式,這是因為您已把NFC讀取綁定了其他程式, 解決此問題, 開啟 ”設定 --> 應用程式 --> 選取菜單重設應用程式喜好設定”, 重設後, 當你把八達通儲值卡貼近手機時, 手機會彈出應用程式來處理NFC,選取Octo-Expense即可2.不支持舊八達通儲值卡 (8位數字)3.你的手機手機必須有NFC(近塲通訊)功能,如果你的手機沒有此功能, 會顯不"沒有 NFC 硬件"4.此程式不能讀取八達通儲值卡的每一項交易記錄.5.八達通是八達通控股有限公司的商標6.這不是一個八達通控股有限公司官方應用程序。TAG:八達通, Octopus, 儲值卡, 記帳Octopus Accounting(Professional Edition) using NFC technology to read the Octopusstored value card balances and record consumer itemsFeatures* You can not access in the case, read the balance of Octopuscards* Support for 9-digit Octopus cards (including the number inparentheses)* You can record consumer items* Monthly consumption and value-added* Export csv (Excel) fileHow to use1 If you have not turned on NFC feature, press "NFC Settings"button, and select the NFC. Effect Octopus cards placed in the backof the phone, when the phone detects Octopus cards will show thebalance on the card.2 When the balance on the card is displayed, press the "Save"button, enter the consumer memo, press the "Save" button3 Suppose you have turned NFC function, another way to start aprogram is a direct effect of the Octopus cards placed behind thephone, select Octo-Expense app.Note:1. When you put Octopus cards close to the phone, Octo-Expensesoftware does not pop up, but open to other Octopus program, it isbecause you have already read NFC bind other programs, to resolvethis problem, open "Setting -> Applications -> select menureset the application preferences", after the reset, when you putthe Octopus cards close to the phone, the phone will pop upapplication to handle NFC, you can select the Octo-Expense2 does not support the old Octopus cards (8 digits)3 Your phone phone must have NFC (Near Room for communication)function, if your phone does not have this feature, it will notdisplay "No NFC hardware."4 This program can not read every transaction Octopus stored valuecard.5 is a trademark of Octopus Octopus Holdings Limited6 This is not an official Octopus Holdings Limitedapplication.TAG: Octopus, Octopus, stored value cards, billing
GPS Logger 3.4.5
Peter Ho
The purpose GPS Logger is to log your GPS coordinates , speed anddistance to a file on your SD card.Features:- Background loggingGPS latitude, longitude, altitude, speed, pace, total distance- Logwith the selection of activities including running, walking,biking, skiing, snow boarding, driving and customize activity-Powerful history filter - Google map thumbnail in history- Attachphotos to session- Share session history with your friends- ExportGPX , KML (For Google Earth) and CSV (For Excel) files- Export TCX(Garmin) file and FITLOG (SportTracks) file- Show/hide items-Build-in file manager to launch csv, kml files- Limit 10 historyrecords- Speed chart- Bar chart statistics- Mutli-language :English, German, French, Italian, Spanish,Portuguese, Trad.Chinese, Simplified Chinese and JapaneseFeatures in PRO version :☆Share Google Map route and session photos to friends☆ Support fileupload to your Dropbox ☆ No limitation of history records☆ Nolimitation of time interval☆ No AdsPermission* Modify/delete SDcard contents is used to write CSV file to SD card* Internet accessis used for ad * Prevent phone from sleeping is used to keep thescreen on for user taking lapHow to use the app ?Press "GPS" iconto enable GPS. Press "Start" button to start logging GPS data. Tostop logging, press the "Stop" button Press "Save" icon to save thelogging data to KML,GPX,CSV fileNote :1. For those who need supportplease email to the designated email.Do NOT use either the feedbackarea to write questions, it is not appropriate and that is notguaranteed that can read them.2. If you like this app, pleasepurchase the PRO version.http://play.google.com/store/apps/details?id=com.peterhohsy.gpsloggerpro
GPS Logger Pro 3.4.5
Peter Ho
The purpose GPS Logger Pro is to log your GPS coordinates , speedand distance to a file on your SD card.Features:- Backgroundlogging GPS latitude, longitude, altitude, speed, pace and totaldistance- Log with the selection of activities including running,walking, biking, skiing, snow boarding, driving and customizeactivity- Powerful history filter - Google map thumbnail inhistory- Attach photos to session- Share route and photos with yourfriends- Export GPX , KML (For Google Earth) and CSV (For Excel)files- Export TCX (Garmin) and FITLOG (SportTracks) file- Bar chartstatistics- Support file upload to your Dropbox using built-inDropbox uploader- Show/hide items- No limitation of no. of GPSlogging data- No limitation of time interval- Build-in file managerto launch csv, kml files- Mutli-language : English, German, French,Italian, Spanish,Portuguese, Trad. Chinese, Simplified Chinese andJapanese- No adsThe saved files are stored in theSDCard\GPSLogger_Pro folderPermission* Modify/delete SD cardcontents is used to write CSV file to SD card* Prevent phone fromsleeping is used to keep the screen on for logging dataHow to usethe app ?Press "GPS" icon to enable GPS. Press "Start" button tostart logging GPS data. To stop logging, press the "Stop" buttonNote :1. For those who need support please email to the designatedemail.Do NOT use either the feedback area to write questions, it isnot appropriate and that is not guaranteed that can read them.
MD5 Calculator 1.0.4
Peter Ho
The purpose of MD5 Calculator is to calculatethe MD5 of filesFeatures:1. Calculate MD5 checksum of a file2. Compare a checksum of a file with known checksum in order tocheck the file integrity3. Compare files with their checksumsNote :1. For those who need support please email to the designatedemail.Do NOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.Tags : calculator, MD5 , hash
香港身份證驗證器 1.1.0
Peter Ho
檢查香港身份證號碼是否正確*身份證號碼不會保存在SD card 內及不會發放Check the Hong Kongidentity card number is correct* ID number is not saved in the SD card and will not bereleased
Timer IC 555 Calculator 2.5.2
Peter Ho
IC 555 is a basic timer IC for hobbyist or electronic engineers.This app is used to calculate monostable and astable circuitFeatures: 1. Calculate monostable circuit 2. Calculate frequency ofastable circuit 3. Calculate component values of monstable andastable circuit. Save component values in CSV file (Excel file)Note : 1. For those who need support please email to the designatedemail. Do NOT use either the feedback area to write questions, itis not appropriate and that is not guaranteed that can read them.
Timer IC 555 Calculator Pro
Peter Ho
IC 555 is a basic timer IC for hobbyist or electronic engineers.This app is used to calculate monostable and astable circuitFeatures: 1. Calculate monostable circuit 2. Calculate frequency ofastable circuit 3. Calculate component values of monostable andastable circuit. Save component values in CSV file (Excel file) 4.Can use preferred values of capacitors and resistors Features inPRO version only: 1. Share CSV file to other apps 2. No Ad 3. Canuse preferred value 1% for resistor and 5% for capacitor 4. Nolimitation Note : 1. For those who need support please email to thedesignated email. Do NOT use either the feedback area to writequestions, it is not appropriate and that is not guaranteed thatcan read them.
8051 Tutorial Pro 1.9.0
Peter Ho
This app is a 8051 tutorial based on C language. It is suitable forhobbyist or engineering students. Features • 8051 architecturereview • 8051 asm mnemonics • 8051 C lanugage • 21 projectsincluding LED, buzzer, key switch, external interrupt, 7-segmentdisplay, 8x8 led matrix, timer (mode 0,1,2), 4x4 keypad, piano,serial debug monitor, 16x2 LCM, i2c eeprom, 93c46 etc • Baudcalculator • Optional demo : OLED, TFT 220x176, DFPlayer mp3module, MPU6050, 18B20, BMP180, DHT11, Infrared decode, Infraredtransmission , 2.4GHz 24L01, Bluetooth home automation, steppermotor, servo motor, DC motor (PWM) etc Features in Pro • More than10 extra 8051 projects • Create C source code of timer mode 0,1,2 •Data pattern code generator of 8x8 LED matrix : • Optional : OLED,2.2 inch TFT and MPU6050 sensor Pro version :http://play.google.com/store/apps/details?id=com.peterhohsy.C8051_tutorialproNote : 1. For those who need support please email to the designatedemail. Do NOT use either the feedback area to write questions, itis not appropriate and that is not guaranteed that can read them.MSC-51 are registered trademarks of Intel Corporation or itssubsidiaries, in the US and/or other countries. This application isnot related or affiliated in any way Intel Corporation.
Star-Delta Calculator 1.3.0
Peter Ho
The star-delta calculator is used to calculate the conversionbetween star and delta network.Feature1. Convert star network todelta network2. Convert delta network to star networkNote :1. Forthose who need support please email to the designated email.Do NOTuse either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.Tags :basic electronics , calculator, star-delta , Y-Δ
Easy Expense Pro
Peter Ho
To keep tracks of income and expense * Ease to use * Track yourincome and expenses , classify them by category * You can modify ordelete the records that you have created. * Customize income andexpense categories * Recurring expenses and income * Customize daterange * Transaction searching * Split the bill and share the result* CSV report generation * Chart generation * Passcode protection *Share CSV file to other apps * Backup and restore database *Support English, German, French, Spanish, Italian, Chinese,Japanese
Electronics Toolbox Pro
Peter Ho
This app is a collection of basic electronic calculators. It issuitable for hobbyist, electronic engineers or professionals.Features • Calculate resistance of 2 resistors in series / parallel• To find out combinations of 2 resistors in series / in parallelmaking a desired resistance • Calculate resistor values of voltagedivider and find out combinations of resistance making a desiredratio • Calculate resistor values of inverting amplifier gain andfind out combinations of resistance making a desired ratio • Ohm'sLaw calculation • Star-delta conversion • RC charging circuit :Calculate time constant by R and C • RC Filter : Calculate cutofffrequency by resistor and capacitor value and find out combinationsof resistance and capacitance making a desired cutoff frequency •RL Filter : Calculate cutoff frequency by resistor and inductorvalue and find out combinations of resistance and inductance makinga desired cutoff frequency • LC Filter : Calculate resonantfrequency by capacitor and inductor values and find outcombinations of capacitance and inductance making a desiredresonant frequency • Calculate monostable circuit and find outcombinations of R and C making a desired pulse time • Calculatefrequency of astable circuit and find out combinations ofcapacitance and resistance making a desired astable frequencyFeatures in PRO version only: 1. No Ads 2. No limitation Note : 1.For those who need support please email to the designated email. DoNOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.
RC Circuit 2.3.6
Peter Ho
This app is used to calculate the RC charging circuit and RCfilter. It is suitable for hobbyist or electronic engineers.Features:1. Calculate time constant by R and C2. Calculate betweentime constant and % of charging3. Calculate cutoff frequency oflow-pass filter/ high-pass filter by resistor and capacitorvalues4. To find out combinations of resistance and capacitancemaking a desired time constant5. To find out combinations ofresistance and capacitance making a desired cutoff frequency6. Saveall combinations in a CSV (Excel) file Features in PRO versiononly:1. No Ads2. No limitationNote :1. For those who need supportplease email to the designated email.Do NOT use either the feedbackarea to write questions, it is not appropriate and that is notguaranteed that can read them.
LC Circuit 1.3.0
Peter Ho
This app is used to calculate LC resonant circuit. It is suitablefor hobbyist or electronic engineers. Features:1. Calculateresonant frequency by capacitor and inductor values2. To find outcombinations of capacitance and inductance making a desiredresonant frequency3. Save all combinations in a CSV (Excel) file 4.Use preferred values of capacitors and inductorsFeatures in PROversion only:1. Can use preferred value 5% for capacitor and 5% forinductor2. No Ads3. No limitationNote :1. For those who needsupport please email to the designated email.Do NOT use either thefeedback area to write questions, it is not appropriate and that isnot guaranteed that can read them.
Archery Score Keeper Pro
Peter Ho
Say goodbye to paper-based target score sheets! Basically, it'sscore keeper allowing the archer to mark down the score for eachsession Features - Simple user interface for recording scores byjust touch number pad on the screen to mark your arrows. - Archeris able to edit any score before confirmation. - Marking yourarrows by taking a photo and attach to end - Support 1~6 arrow perend - To list all results. - Monthly statistics - Share your scoreand/or photo to your friends - Support up to 2 archers - Limit 10history records - SupportEnglish,German,French,Italian,Spanish,Portuguese,Chinese Featuresin PRO only - Support up to 4 archers - No limitation of no. ofhistory records - No ads Features in Ultra only - Unlimited archerssupport - No limitation of no. of history records - No ads Rememberyou are here to shoot, so let this app keep the score!! Permission* Modify/delete SD card contents is used to write CSV file to SDcard * Internet access is used for ad and Dropbox access Note : Forthose who need support please email to the designated email. Do NOTuse either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.
LC Circuit Pro 1.2.0
Peter Ho
This app is used to calculate LC resonant circuit. It is suitablefor hobbyist or electronic engineers. Features:1. Calculateresonant frequency by capacitor and inductor values2. To find outcombinations of capacitance and inductance making a desiredresonant frequency3. Save all combinations in a CSV (Excel) file 4.Use preferred values of capacitors and inductorsFeatures in PROversion only:1. Can use preferred value 5% for capacitor and 5% forinductor2. No Ads3. No limitationNote :1. For those who needsupport please email to the designated email.Do NOT use either thefeedback area to write questions, it is not appropriate and that isnot guaranteed that can read them.
SHA1 Calculator 1.0.4
Peter Ho
The purpose of SHA1 Calculator is to calculatethe SHA1 of filesFeatures:1. Calculate SHA1 checksum of a file2. Compare a checksum of a file with known checksum in order tocheck the file integrity3. Compare files with their checksumsNote :1. For those who need support please email to the designatedemail.Do NOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.Tags : calculator, SHA1 , hash
Hash Calculator 1.4.0
Peter Ho
The purpose of Hash Calculator is to calculatethe MD5, SHA1 or CRC32 of filesFeatures:1. Calculate MD5, SHA1 or CRC32 checksum of a file2. Compare a checksum of a file with known checksum in order tocheck the file integrity3. Compare files with their checksumsNote :1. For those who need support please email to the designatedemail.Do NOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.Tags : SHA1, calculator, hash, SHA-1, MD5, CRC32
EZ-Stopwatch 1.2.0
Peter Ho
EZ-Stopwatch is used to keep track of lap timeand elapse time. The resolution is down to 1/100 of a second. Theapp is ad-supported.Features* Record lap time and elapse time* Large display* Resolution down to 1/100 second* Save lap data to SD cardPermission* Modify/delete SD card contents is used to write CSV file to SDcard* Internet access is used for ad* Prevent phone from sleeping is used to keep the screen on foruser taking lapHow to use the app ?Press "Start" to start the timer then press "Lap" button to take alap. To stop the timer, press "Stop" button.Press "Menu" key and select menu item "Save", enter a filename tosave. The saved file will be in your SD card "EZ-Stopwatch"folder.Note :For those who need support please email to the designatedemail.Do NOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.Tags : stop watch, sports, sports stopwatch, stopwatch
香港身份證驗證器專業版 1.1
Peter Ho
1. 檢查香港身份證號碼是否正確2. 無限產生身份證號碼*身份證號碼不會保存在SD card 內及不會發放1 Check the Hong Kongidentity card number is correct2 Unlimited generated ID number* ID number is not saved in the SD card and will not bereleased
CRC Calculator 1.0.6
Peter Ho
The purpose of CRC Calculator is to calculatethe CRC32 of filesFeatures:1. Calculate CRC32 checksum of a file2. Compare a checksum of a file with known checksum in order tocheck the file integrity3. Compare files with their checksumsNote :1. For those who need support please email to the designatedemail.Do NOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.Tags : calculator, CRC32, hash
Twenty Four 1.3
Peter Ho
Twenty four is a math game to sharpen your math skills. in whichyou are given four numbers and have to combine them using the fourbasic operations (+, -, *, /) to get the challenge number in theend. By default, the challenge number is set to be 24. - Fun forpassing time and great to teach kids basic math operations.- A goodgame for both kids and adults to exercise your brain every time youplay.- Randomly generate puzzles- Adjust maximum limit of thechallenge number between 10 and 99- Adjust maximum limit of thefour random number from 10 to 99- Generate solutions for any set offour numbers
Series/Parallel Resistors Pro 2.6.0
Peter Ho
When you do not have an exact resistor value in building a circuit,you need to combine two resistors either in series or in parallel.This app is used to find out all the combinations of theseresistors making a desired resistance.This app is suitable forhobbyist or electronic engineers. Features:1. Calculate resistanceof 2 resistors in series / parallel2. To find out combinations of 2resistors in series / in parallel making a desired resistance3.Save all combinations in a CSV (Excel) file Features in PRO versiononly:1. No Ad2. No limitationNote :1. For those who need supportplease email to the designated email.Do NOT use either the feedbackarea to write questions, it is not appropriate and that is notguaranteed that can read them.
八達通記帳 1.8.0
Peter Ho
Octo-Expense 利用NFC技術讀取八達通儲值卡的餘額及記錄消費項目特點* 可以在不上網情況下,讀取八達通儲值卡的餘額* 支持9位數字的八達通儲值卡(包括括號中的數字)* 可以記錄消費項目* 按月統計消費及增值*** 由於八達通公司沒有開放編程資料來讀取消費記錄, 消費記錄要自行輸入 ***專業版* 匯出csv (Excel)檔案如何使用1. 如果你未有開啟NFC功能, 請按"NFC 設定"按鈕,並選取NFC.把八達通儲值卡效置於電話背後,當手機檢測到八達通儲值卡會顯示卡上的餘額.2. 當顯示卡上的餘額, 按"儲存"按鈕, 輸入消費備忘,再按"儲存"按鈕3. 假設你已開啟NFC功能, 另一種方法啟動程式是直接把八達通儲值卡效置於電話背後, 選取Octo-Expense app.注意:1. 當你把八達通儲值卡貼近手機時, Octo-Expense 軟件不能彈出, 而是開啟其他八達通程式,這是因為您已把NFC讀取綁定了其他程式, 解決此問題, 開啟 ”設定 --> 應用程式 --> 選取菜單重設應用程式喜好設定”, 重設後, 當你把八達通儲值卡貼近手機時, 手機會彈出應用程式來處理NFC,選取Octo-Expense即可2.不支持舊八達通儲值卡 (8位數字)3.你的手機手機必須有NFC(近塲通訊)功能,如果你的手機沒有此功能, 會顯不"沒有 NFC 硬件"4.此程式不能讀取八達通儲值卡的每一項交易記錄.5.八達通是八達通控股有限公司的商標6.這不是一個八達通控股有限公司官方應用程序。TAG:八達通, Octopus, 儲值卡, 記帳Octo-Expense use NFCtechnology to read the Octopus cards balance and record consumeritemsFeatures* Possible without the Internet case, read the Octopus stored valuecard balance* Support for 9-digit Octopus cards (including numbers inparentheses)* You can record consumption items* Monthly consumption and value-added*** Since the Octopus company did not open programming datato be read consumption records, consumer records to enter ***yourselfPro* Export csv (Excel) fileHow to use1. If you do not open the NFC function, press "NFC settings"button, and choose NFC. The Octopus cards effect placed the phoneback, when the phone is detected Octopus cards will show thebalance on the card.2. When the balance on the card is displayed, press the "Save"button, enter the consumption memo, press the "Save" button3. Assuming that you have turned on NFC function, another way tostart the program is a direct effect of the Octopus cards is placedbehind the phone, select Octo-Expense app.Note:1. When you put the Octopus cards close to the phone, Octo-Expensesoftware does not pop up, but open to other Octopus program, thisis because you've read NFC bind other programs to solve thisproblem, open "Setting -> Applications -> Select Menu resetthe application preferences", after the reset, when you put theOctopus cards close to the phone, the phone will pop up theapplication to handle NFC, you can choose Octo-Expense2. Do not support the old Octopus cards (eight digits)3. Your phone phone must have NFC (near Chang communication)function, if your phone does not have this feature, it was not "NoNFC hardware"4. This program can not read every transaction Octopus stored valuecards.5. The Octopus is a trademark of Octopus Holdings Limited6. This is not a Octopus Holdings Limited officialapplication.TAG: Octopus, Octopus, cards, billing
Ratio Calculator Pro 1.7.0
Peter Ho
Operation amplifier and voltage divider are the basic circuits forhobbyist or electronic engineers. This app is used to calculate allpossible resistor values approximate a desired ratioFeatures:1.Calculate resistor values of voltage divider2. Calculate resistorvalues of inverting amplifier gain3. Save component values in CSVfile (Excel file)4. Use preferred values of resistorsFeatures inPRO version only:1. No Ad2. Can use preferred value 1% for resistor3. No limitationNote :1. For those who need support please email tothe designated email.Do NOT use either the feedback area to writequestions, it is not appropriate and that is not guaranteed thatcan read them.
8051 Studio Pro 1.4.0
Peter Ho
This app is to generate C 8051 source code automatically. It issuitable for hobbyist or engineering students. Have you forgottenhow to set up the TCON, TMOD, SCON, IE register etc.? 8051 Studiois a rapid 8051 C source code generator. Just pick up pre-defineddevices and press "generation" button. All the C 8051 source codefiles will be generated. It works like a charm. You do not careabout the signal sequence. Just call a function ShowString( ) allowyou to write a string to a character LCD. 8051 C programming is soeasy after you have used the app. Features • Modular design andeasy to use • Lots of electronic devices including led, buzzer,relay, key switch, keypad, human sensor, 7-segment, LCM 8-bit etc •Fast timer 0,1 setting • Pin conflict detection • Auto/manual pinassignment • One-click generation C 8051 source code • Optionaldemo : OLED, TFT 220x176, 18B20, MPU6050, DHT11, BMP180, DFPlayermp3 module, stepper motor, servo motor, DC motor (PWM), infraredtransmission, infrared decode, 2.4GHz 24L01, bluetooth homeautomation etc Features in Pro • Support 93C46 eeprom • Support I2Ceeprom 24C01 (128B) ~ 24C512 (64kB) • Support SPI eeprom 25010(128B) ~ 25M02 (256kB) • Fast baud setup and auto generate UARTinterrupt routine • Fast timer 2 (8052 only) setup and autogenerate timer interrupt routine • Extra devices : 8x8 led matrix,ADC, LCM 128x64, real time clock • No Ads • No limitation Note : 1.For those who need support please email to the designated email. DoNOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them. MSC-51are registered trademarks of Intel Corporation or its subsidiaries,in the US and/or other countries. This application is not relatedor affiliated in any way Intel Corporation.
Linear Equations Pro 1.1.0
Peter Ho
This app is to calculate linear equations.Features• Solve 2 linearequations• Solve 3 linear equations• Load linear equation from CSVfile• Save linear equation to CSV fileFeatures in PRO versiononly:1. Solve 3~9 linear equations2. No AdsNote :1. For those whoneed support please email to meDo NOT use either the feedback areato write questions, it is not appropriate and that is notguaranteed that can read them.Tags : Linear equations, linearequation solver
AVR Tutorial 1.9.0
Peter Ho
This app is a AVR tutorial based on ATMEGA16 C language. It issuitable for hobbyist or engineering students. Learning AVR mcu isdifficult. The learning curve is steep. The process includingreading datasheet, writing code, building prototypes andtroubleshooting. The most possible errors are the setting wrongvalue of registers. Now, AVR tutorial is the solution. The codewizard allow you to set the timer, UART, ADC, interrupt andperipherals by just a few clicks in setting. The proven C sourcecode is generated automatically. Though the code wizard is based onATMEGA16 , it is easy to port to other ATMEGA since the source codegenerated is highly structured Features • AVR architecture review •AVR asm mnemonics & C lanugage • 21 demo projects includingled, keys, keypad, 16x2 LCM, ADC etc • Code wizard for UART, timer,interrupt, ADC and external peripherals including LED, buzzer, keyswitch, external interrupt, 7-segment display, 8x8 led matrix, 4x4keypad, 16x2 LCM, real time clock etc Features Pro • Support I2Ceeprom 24C01 (128B) ~ 24C512 (64kB) • Support SPI eeprom 25010(128B) ~ 25M02 (256kB) • Extra demo projects including LED Matrix16x16, i2c eeprom, spi eeprom, home automation etc • Code wizardfor I2C eeprom, SPI eeprom, LCM 128x64 etchttp://play.google.com/store/apps/details?id=com.peterhohsy.atmega_tutorialproOptional Demo * OLED 128x64 * TFT 220x176 * MPU6050 (accel + gyro)sensor * 18B20 temperature sensor * DFPlayer mp3 module * SPI flash* Stepper motor * Servo motor * Home automation using bluetoothNote : 1. For those who need support please email to the designatedemail. Do NOT use either the feedback area to write questions, itis not appropriate and that is not guaranteed that can read them.Atmel® and AVR® are registered trademarks or trademarks of AtmelCorporation or its subsidiaries, in the US and/or other countries.This application is not related or affiliated in any way AtmelCorporation.
AVR Tutorial Pro
Peter Ho
This app is a AVR tutorial based on ATMEGA16 C language. It issuitable for hobbyist or engineering students.Learning AVR mcu isdifficult. The learning curve is steep. The process includingreading datasheet, writing code, building prototypes andtroubleshooting. The most possible errors are the setting wrongvalue of registers.Now, AVR tutorial Pro is the solution. The codewizard allow you to set the timer, UART, ADC, interrupt andperipherals by just a few clicks in setting. The proven C sourcecode is generated automatically. Though the code wizard is based onATMEGA16 mcu, it is easy to port to other ATMEGA mcu since thesource code generated is highly structuredFeatures• AVRarchitecture review• AVR asm mnemonics & C lanugage• 26 demoprojects including 16x2 LCM, i2c eeprom, spi eeprom, ADC, homeautomation, ultrasonic etc• Code wizard for UART, timer, interrupt,ADC and external peripherals including LED, buzzer, key switch,external interrupt, 7-segment display, 8x8 led matrix, 4x4 keypad,segment lcd, 16x2 LCM, i2c eeprom, spi eeprom, RTC etc• Optionalprojects : OLED, TFT 220x176, MPU6050, 18B20, DHT11, BMP180,DFPlayer mp3 module, SP flash, Wifi home automation (ESP8266),stepper motor, servo motor, DC motor (PWM) etcOptional Demo* OLED128x64 (SPI)* OLED 128x64 (I2c)* TFT 220x176* MPU6050 (accel +gyro) sensor* 18B20 temperature sensor* DFPlayer mp3 module* SPIflash* Stepper motor* Servo motor* Home automation using bluetooth*Robotic arm* Bluetooth robotic arm* Bluetooth LE robotic armNote:1. For those who need support please email to the designatedemail.Do NOT use either the feedback area to write questions, it isnot appropriate and that is not guaranteed that can readthem.Atmel® and AVR® are registered trademarks or trademarks ofAtmel Corporation or its subsidiaries, in the US and/or othercountries. This application is not related or affiliated in any wayAtmel Corporation.
RL Filter Pro 1.3.0
Peter Ho
This app is used to calculate RL filter. It is suitable forhobbyist or electronic engineers. Features:1. Calculate cutofffrequency by resistor and inductor values2. To find outcombinations of resistance and inductance making a desired cutofffrequency3. Save all combinations in a CSV (Excel) file 4. Usepreferred values of resistors and inductorsFeatures in PRO versiononly:1. Can use preferred value 1% for resistor and 5% forinductor2. No Ads3. No limitationNote :1. For those who needsupport please email to the designated email.Do NOT use either thefeedback area to write questions, it is not appropriate and that isnot guaranteed that can read them.
RL Filter 1.3.1
Peter Ho
This app is used to calculate RL filter. It is suitable forhobbyist or electronic engineers. Features:1. Calculate cutofffrequency by resistor and inductor values2. To find outcombinations of resistance and inductance making a desired cutofffrequency3. Save all combinations in a CSV (Excel) file 4. Usepreferred values of resistors and inductorsFeatures in PRO versiononly:1. Can use preferred value 1% for resistor and 5% forinductor2. No Ads3. No limitationNote :1. For those who needsupport please email to the designated email.Do NOT use either thefeedback area to write questions, it is not appropriate and that isnot guaranteed that can read them.
RC Circuit Pro 2.3.5
Peter Ho
This app is used to calculate the RC charging circuit and RCfilter. It is suitable for hobbyist or electronic engineers.Features:1. Calculate time constant by R and C2. Calculate betweentime constant and % of charging3. Calculate cutoff frequency byresistor and capacitor values4. To find out combinations ofresistance and capacitance making a desired time constant5. To findout combinations of resistance and capacitance making a desiredcutoff frequency6. Save all combinations in a CSV (Excel) fileFeatures in PRO version only:1. No Ads2. No limitationNote :1. Forthose who need support please email to the designated email.Do NOTuse either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.
Airlines (HK) Tel. numbers 1.1.0
Peter Ho
Show telephone numbers of different airlines- make a call to desire airlines- visit the website of particular airlines#Tags: useful telephone numbers,airlines
Quadratic Equation Pro 1.2.0
Peter Ho
This app is to calculate quadratic equations.Features• Solvequadratic equation• Show real roots and complex roots• Calculatemaximum or minimum point• Save result in text fileFeatures in PROversion only:• No Ads• Show equation in graphNote :1. For those whoneed support please email to meDo NOT use either the feedback areato write questions, it is not appropriate and that is notguaranteed that can read them.Tags : Quadratic equations
My Sports Tracker 1.3.0
Peter Ho
The app is used to log activities such as running, walking, bikingby using mobile built-in GPS receiverFeatures:- Background loggingGPS latitude, longitude, altitude, speed, pace, total distance- Logwith the selection of activities including running, walking,biking, skiing, snow boarding, driving and customize activity-Powerful history filter - Google map thumbnail in history- Attachphotos to session- Share session history with your friends- ExportGPX , KML (For Google Earth) and CSV (For Excel) files- Export TCXfile and FITLOG (SportTracks) file- Show/hide items- Build-in filemanager to launch csv, kml files- Speed chart- Bar chartstatistics- Support English, German, French, Italian,Spanish,Portuguese, Trad. Chinese, Simplified Chinese andJapaneseFeatures in PRO version :☆ Share Google Map route andsession photos to friends☆ No limitation of history records☆ Nolimitation of time interval☆ No AdsPermission* Modify/delete SDcard contents is used to write CSV file to SD card* Internet accessis used for ad * Prevent phone from sleeping is used to keep thescreen on for user taking lapHow to use the app ?Press "Menu >GPS" to enable GPS. Press "Start" button to start logging GPS data.To stop logging, press the "Stop" button Press "Save" icon to savethe logging data to KML,GPX,CSV fileNote :1. For those who needsupport please email to the designated email.Do NOT use either thefeedback area to write questions, it is not appropriate and that isnot guaranteed that can read them.2. If you like this app, pleasepurchase the PROversion.http://play.google.com/store/apps/details?id=com.peterhohsy.mysportstrackerproExcelis registered trademark of Microsoft Corporation. Google Earth isregistered trademark of Google. All other trade names mentioned aretrademarks or registered trademarks of their respective holders.