Peter Ho Apps

Electronics Toolbox 3.0.6
Peter Ho
This app is a collection of basic electroniccalculators. It is suitable for hobbyist, electronic engineers orprofessionals.This is the free version, which contains ads; you can also buy fromthe 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 parallelmaking a desired resistance• Calculate resistor values of voltage divider and find outcombinations of resistance making a desired ratio• Calculate resistor values of inverting amplifier gain and findout 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 capacitorvalue and find out combinations of resistance and capacitancemaking 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 resonant frequency by capacitor andinductor values and find out combinations of capacitance andinductance making a desired resonant frequency• Calculate monostable circuit• Calculate frequency of astable circuit and find out combinationsof capacitance and resistance making a desired astablefrequencyFeatures in PRO version only:1. No Ads2. No limitationPro version :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, it is notappropriate and that is not guaranteed that can read them.
Secure delete Pro 3.0.29
Peter Ho
The application is to delete private filesforever. It is suitable for users who are going to sell theirAndroid phones.Feature1. Select photos in any folder2. Secure delete private photos.3. Support English, German, Spanish, French, Italian, Portuguese,Japanese, Trad. Chinese ,simplified Chinese and RussianFeature in PRO version1. Secure delete any file type2. Support folder deletion3. Select all files in a folder*** Deleted files CANNOT be recovered ***Note :1. For those who need support please email to meDo NOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.Tags : file deletion, secure delete
G-sensor Logger 3.0.10
Peter Ho
The application capture the accelerometersensor (or G-sensor) data into a fileFeatures1. The magnitude, minimum and maximum are calculated.2. The captured data can be save in comma-separated values (CSV)file for further analysis. The csv are located in SD card"G-Sensor_Debug" folder.3. Limit 10000 data points4. Direct upload CSV file to your Dropbox via built-in Dropboxengine5. Support English, German, French, Italian, Spanish, Portuguese,Trad. Chinese, Simplified Chinese and JapaneseFeatures in Pro only1. No limitation of data points2. No adsPermission* Modify/delete SD card contents is used to write CSV file to SDcard* Internet access is used for ad and Dropbox access* Prevent phone from sleeping is used to keep the screen on foruser taking lapHow to use the app ?Press "Logging" to start logging accelerometer data. To stoplogging, press the button againPress menu->"Save" icon to save the logging data to CSVfilePress menu->"Dropbox" icon to upload a selected file to youDropbox.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.
65536 1.4.8
Peter Ho
Have you finished the puzzle game 2048? Now,this puzzle game 65536 is a more addictive puzzle game than 2048.You can play puzzle 2048, 4096, 8192, 16384 ,32768 and 65536!Good luck !Features1. Save game2. Undo function
NMEA Tools 1.7.9
Peter Ho
The purpose NMEA Tools is to log your RAW GPSinformation (NMEA sentences) to a file on your SD card. Also, itcan parse a NMEA file.Features:1. Log RAW NMEA sentences2. Display the route in Google Map3. Show latitude, longitude, altitude, speed, PDOP and HDOP4. Support background logging5. Parse NMEA files6. View NMEA files7. Limit 9999 NMEA sentences per session8. Support GPS, GLONASS and BeiDou systems9. Support English, German, French, Italian, Spanish, Portuguese,Japanses, Trad. Chinese and Simplified ChineseFeatures in PRO version :1. Log particular NMEA sentences1. No limitation of NMEA sentences in capturing and parsing2. No advertisement3. Support Dropbox file uploading using built-in DropboxenginePermission* Modify/delete SD card contents is used to write NMEA file to SDcard* Internet access is used for ad and Google Map* Prevent phone from sleeping is used to keep the screen on foruser taking lapHow to use the app ?Press top left "GPS" icon to enable GPS.Press "Log" button to start logging NMEA data. To stop logging,press the "Log" button againPress "Save" icon to save the logging data to NMEA fileNote :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.2. If you like this app, please purchase the PRO version.http://play.google.com/store/apps/details?id=com.peterhohsy.nmeapaserpro
Cube Timer 3.1.2
Peter Ho
The application records the time forcompletion of magic cubes 3x3x3, 4x4x4 etc.Features1. Scramble Generator2. The best time and average time are calculated.3. Limit 500 records4. Support English, German, French, Italian, Spanish, Trad.Chinese, Simplified Chinese and JapaneseFeatures in PRO1. Inspection timer2. Self-defined scrambler of your favorite cubes3. Chart4. The time records can be exported in comma-separated values (CSV)file. The csv are located in SD card "Cube_Timer" folder.5. Direct upload CSV to your Dropbox6. Build-in file manager to launch csv files.7. No limitation8. No adPermission* Modify/delete SD card contents is used to write CSV file to SDcard* Internet access is used for ad and Dropbox access* Prevent phone from sleeping is used to keep the screen on foruser taking lapHow 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 thetimer.Press the top left "Records" icon, you can see all your records.Press a record to delete it.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.
SD Refresh 1.0.10
Peter Ho
Have you experience file created on your phonecannot be shown on PC ? I cannot find any solutions. So, I writethis app.tag : SD card , refresh
Cube Timer Pro 3.1.2
Peter Ho
The application records the time forcompletion of magic cubes 2x2x2 ,3x3x3 and other magic cubesetc.Features1. Scramble Generator for magic cubes 2x2x2 ,3x3x32. Self-defined scrambler of your favorite cubes3. Chart4. The best time and average time are calculated.5. Support English, German, French, Italian, Spanish, Trad.Chinese, Simplified Chinese and JapaneseFeatures in PRO1. Inspection timer2. The time records can be exported in comma-separated values (CSV)file. The csv are located in SD card "Cube_Timer" folder.3. Direct upload CSV to your Dropbox4. Build-in file manager to launch csv files.5. No limitation6. No adPermission* Modify/delete SD card contents is used to write CSV file to SDcard* Internet access is used for ad and Dropbox access* Prevent phone from sleeping is used to keep the screen on foruser taking lapHow 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 thetimer.Press the top left "Records" icon, you can see all your records.Long press a record to delete it.Press "Open" icon, to open previous saved CSV file. Press "Save"icon, to save 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 the designatedemail.Do NOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.
Secure delete 3.0.39
Peter Ho
The application is to delete private filesforever. It is suitable for users who are going to sell theirAndroid phones.Feature1. Select photos in any folder2. Secure delete private photos.3. Support English, German, Spanish, French, Italian, Portuguese,Japanese, Trad. Chinese,simplified Chinese and RussianFeature in PRO version1. Secure delete any file type2. Support folder deletion3. Select all files in a folder*** Deleted files CANNOT be recovered ***Note :1. For those who need support please email to meDo NOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.
Quadratic equation 1.2.1
Peter Ho
This app is to calculate quadratic equations.Features• Solve quadratic equation• Show real roots and complex roots• Calculate maximum or minimum point• Save result in text fileFeatures in PRO version only:• No Ads• Show equation in graphNote :1. For those who need support please email to meDo NOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.Tags : Quadratic equations
Easy Expense 3.1.8
Peter Ho
To keep tracks of income and expense,calculate balance and export report to CSV (Excel) fileFeatures• Ease to use• Keep tracks of income and expense• Customize income and expense categories• You can 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,JapaneseFeatures in PRO only• Chart generation• Recurring expense and income• Passcode protection• Restore database• Share CSV file to other apps• No limitation of no. of transactions• No adstag : income, expense, expense tracker, daily expense
NMEA Tools Pro 1.7.9
Peter Ho
The purpose NMEA Tools is to log your RAW GPSinformation (NMEA sentences) to a file on your SD card. Also, itcan parse a NMEA file.Features:1. Log RAW NMEA sentences2. Display the route in Google Map3. 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 sentence filter3. No advertisement4. Support Dropbox file uploading using built-in Dropboxengine*** The NMEA logging function does not work on some phones. Pleasetest your phone with the NMEA tools before you buy the PROversionPermission* Modify/delete SD card contents is used to write NMEA file to SDcard* Internet access is used for ad and Google Map* Prevent phone from sleeping is used to keep the screen on foruser taking lapHow to use the app ?Press top left "GPS" icon to enable GPS.Press "Log" button to start logging NMEA data. To stop logging,press the "Log" button againPress "Save" icon to save the logging data to NMEA fileNote :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.2. If you like this app, please purchase the PRO version.https://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 not store or send your credit cardinformation. The internet permission is only used for display theads.
My Bowling Scoreboard 3.1.9
Peter Ho
Bowling is my favorite hobby. I need an app torecord down the score and pin location for further analyst. Forexample, what is the percentage of spare of “Big four”? or how manytimes of continuous 4 strike ? So, I decide to write thisapp.Features:* Record bowling score or pin location in database* Retrieve score or pin location from a database* Show statistic of the score, strike, pin location* Export history to CSV file* Support 2 bowler* Support max. 10 history records* Support English, German, French, Italian, Spanish, Portuguese,Chinese, KoreanFeatures in PRO:* Support up to 3 bowlers* NO limitation of number of history* No adsFeatures in Ultra:* NO limitation of number of bowlers* NO limitation of number of history* No adsPro versionhttps://play.google.com/store/apps/details?id=com.peterhohsy.mybowlingproUltra versionhttps://play.google.com/store/apps/details?id=com.peterhohsy.mybowlingultraPermission* Modify/delete SD card contents is used to write CSV file to SDcard* Internet access is used for backup/restore database from cloudstorageNote :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.
8051 Tutorial 1.3.0
Peter Ho
This app is a 8051 tutorial based on Clanguage. It is suitable for hobbyist or engineeringstudents.Features• 8051 architecture review• 8051 asm mnemonics• 8051 C lanugage• 12 projects including LED, buzzer, key switch, externalinterrupt, 7-segment display, 8x8 led matrix, timer (mode0,1,2)• Baud calculatorFeatures in Pro• More than 10 extra 8051 projects• Over 20 in-app purchase projects• Create C source code of timer mode 0,1,2• Data pattern code generator of 8x8 LED matrix• Extra projects : 4x4 keypad, piano, serial debug monitor, 16x2LCM, i2c eeprom, 93c46 etcPro version :https://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, it is notappropriate 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 3.0.8
Peter Ho
The application capture the accelerometersensor (or G-sensor) data into a CSV fileFeatures1. The magnitude, minimum and maximum are calculated.2. Moving average filter3. The captured data can be save in comma-separated values (CSV)file for further analysis. The csv are located in SD card"G-Sensor_Debug" folder.4. Background data logging5. Direct upload CSV file to your Dropbox via built-in Dropboxengine6. Support English, German, French, Italian, Spanish,Portuguese,Trad. Chinese, Simplified Chinese and Japanese7. No ad8. No limitationPermission* Modify/delete SD card contents is used to write CSV file to SDcard* Internet access is used for ad and Dropbox access* Prevent phone from sleeping is used to keep the screen on foruser taking lapHow to use the app ?Press "Logging" to start logging accelerometer data. To stoplogging, press the button againPress menu->"Save" icon to save the logging data to CSVfilePress menu->"Dropbox" icon to upload a selected file to youDropbox.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.
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 3.4.0
Peter Ho
The purpose GPS Logger is to log your GPScoordinates , speed and distance to a file on your SD card.Features:- Background logging GPS latitude, longitude, altitude, speed,pace, total distance- Log with the selection of activities including running, walking,biking, skiing, snow boarding, driving and customize activity- Powerful history filter- Google map thumbnail in history- Attach photos to session- Share session history with your friends- Export GPX , 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 history records- Speed chart- Bar chart statistics- Mutli-language : English, German, French, Italian,Spanish,Portuguese, Trad. Chinese, Simplified Chinese andJapaneseFeatures in PRO version :☆ Share Google Map route and session photos to friends☆ Support file upload to your Dropbox☆ No limitation of history records☆ No limitation of time interval☆ No AdsPermission* 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 "GPS" icon to enable GPS.Press "Start" button to start logging GPS data. To stop logging,press the "Stop" buttonPress "Save" icon to save the logging data to KML,GPX,CSVfileNote :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.2. If you like this app, please purchase the PRO version.http://play.google.com/store/apps/details?id=com.peterhohsy.gpsloggerpro
GPS Logger Pro 3.3.9
Peter Ho
The purpose GPS Logger Pro is to log your GPScoordinates , speed and distance to a file on your SD card.Features:- Background logging GPS latitude, longitude, altitude, speed, paceand total distance- Log with the selection of activities including running, walking,biking, skiing, snow boarding, driving and customize activity- Powerful history filter- Google map thumbnail in history- Attach photos to session- Share route and photos with your friends- Export GPX , KML (For Google Earth) and CSV (For Excel)files- Export TCX (Garmin) and FITLOG (SportTracks) file- Bar chart statistics- Support file upload to your Dropbox using built-in Dropboxuploader- Show/hide items- No limitation of no. of GPS logging data- No limitation of time interval- Build-in file manager to launch csv, kml files- Mutli-language : English, German, French, Italian,Spanish,Portuguese, Trad. Chinese, Simplified Chinese andJapanese- No adsThe saved files are stored in the SDCard\GPSLogger_Pro folderPermission* Modify/delete SD card contents is used to write CSV file to SDcard* Prevent phone from sleeping is used to keep the screen on forlogging dataHow to use the app ?Press "GPS" icon to enable GPS.Press "Start" button to start 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 is notappropriate 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 2.4.2
Peter Ho
IC 555 is a basic timer IC for hobbyist orelectronic engineers. This app is used to calculate monostable andastable circuitFeatures:1. Calculate monostable circuit2. Calculate frequency of astable circuit3. Calculate component values of monstable and astable 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, it is notappropriate and that is not guaranteed that can read them.
Timer IC 555 Calculator Pro 2.4.2
Peter Ho
IC 555 is a basic timer IC for hobbyist orelectronic engineers. This app is used to calculate monostable andastable circuitFeatures:1. Calculate monostable circuit2. Calculate frequency of astable circuit3. Calculate component values of monostable and astable circuit.Save component values in CSV file (Excel file)4. Can use preferred values of capacitors and resistorsFeatures in PRO version only:1. Share CSV file to other apps2. No Ad3. Can use preferred value 1% for resistor and 5% forcapacitor4. No limitationNote :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.
8051 Tutorial Pro 1.3.0
Peter Ho
This app is a 8051 tutorial based on Clanguage. It is suitable for hobbyist or engineeringstudents.Features• 8051 architecture review• 8051 asm mnemonics• 8051 C lanugage• 21 projects including LED, buzzer, key switch, externalinterrupt, 7-segment display, 8x8 led matrix, timer (mode 0,1,2),4x4 keypad, piano, serial debug monitor, 16x2 LCM, i2c eeprom,93c46 etc• Baud calculator• Optional demo : OLED, TFT 220x176, DFPlayer mp3 module, MPU6050,18B20, BMP180, DHT11, Infrared decode, Infrared transmission ,2.4GHz 24L01, Bluetooth home automation, stepper motor, servomotor, DC motor (PWM) etcFeatures in Pro• More than 10 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 sensorPro version :https://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, it is notappropriate 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.
Archery Score Keeper 3.0.52
Peter Ho
Say goodbye to paper-based target scoresheets!Basically, it's score keeper allowing the archer to mark down thescore for each sessionFeatures- Simple user interface for recording scores by just touch numberpad on the screen to mark your arrows.- Archer is able to edit any score before confirmation.- Marking your arrows by taking a photo and attach to end- Note taking for ends- Support 1~6 arrow per end- To list all results.- Monthly statistics- Share your score and/or photo to your friends- Support up to 2 archers- Limit 10 history records- SupportEnglish,German,French,Italian,Spanish,Portuguese,ChineseFeatures in PRO only- Support up to 4 archers- No limitation of no. of history records- No adsFeatures in Ultra only- Unlimited archers support- No limitation of no. of history records- No adsRemember you are here to shoot, so let this app keep thescore!!Permission* Modify/delete SD card contents is used to write CSV file to SDcard* Internet access is used for ad and Dropbox accessNote :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.
Star-Delta Calculator 1.3.0
Peter Ho
The star-delta calculator is used to calculatethe conversion between star and delta network.Feature1. Convert star network to delta network2. Convert delta network to star networkNote :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 : basic electronics , calculator, star-delta , Y-Δ
Easy Expense Pro 3.1.8
Peter Ho
To keep tracks of income and expense* Ease to use* Track your income and expenses , classify them by category* You can modify or delete the records that you have created.* Customize income and expense categories* Recurring expenses and income* Customize date range* 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 3.0.5
Peter Ho
This app is a collection of basic electroniccalculators. It is suitable for hobbyist, electronic engineers orprofessionals.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 voltage divider and find outcombinations of resistance making a desired ratio• Calculate resistor values of inverting amplifier gain and findout 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 capacitorvalue and find out combinations of resistance and capacitancemaking 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 resonant frequency by capacitor andinductor values and find out combinations of capacitance andinductance making a desired resonant frequency• Calculate monostable circuit and find out combinations of R and Cmaking a desired pulse time• Calculate frequency of astable circuit and find out combinationsof capacitance and resistance making a desired astablefrequencyFeatures in PRO version only:1. No Ads2. No limitationNote :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.
RC Circuit 2.3.6
Peter Ho
This app is used to calculate the RC chargingcircuit and RC filter. It is suitable for hobbyist or electronicengineers.Features:1. Calculate time constant by R and C2. Calculate between time constant and % of charging3. Calculate cutoff frequency of low-pass filter/ high-pass filterby resistor and capacitor values4. To find out combinations of resistance and capacitance making adesired time constant5. To find out combinations of resistance and capacitance making adesired cutoff frequency6. Save all combinations in a CSV (Excel) fileFeatures in PRO version only:1. No Ads2. No limitationNote :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.
LC Circuit 1.3.0
Peter Ho
This app is used to calculate LC resonantcircuit. It is suitable for hobbyist or electronic engineers.Features:1. Calculate resonant frequency by capacitor and inductorvalues2. To find out combinations of capacitance and inductance making adesired resonant frequency3. Save all combinations in a CSV (Excel) file4. Use preferred values of capacitors and inductorsFeatures in PRO version only:1. Can use preferred value 5% for capacitor and 5% forinductor2. No Ads3. No limitationNote :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.
Archery Score Keeper Pro 3.0.52
Peter Ho
Say goodbye to paper-based target scoresheets!Basically, it's score keeper allowing the archer to mark down thescore for each sessionFeatures- Simple user interface for recording scores by just touch numberpad on the screen to mark your arrows.- Archer is able to edit any score before confirmation.- Marking your arrows by taking a photo and attach to end- Support 1~6 arrow per end- To list all results.- Monthly statistics- Share your score and/or photo to your friends- Support up to 2 archers- Limit 10 history records- SupportEnglish,German,French,Italian,Spanish,Portuguese,ChineseFeatures in PRO only- Support up to 4 archers- No limitation of no. of history records- No adsFeatures in Ultra only- Unlimited archers support- No limitation of no. of history records- No adsRemember you are here to shoot, so let this app keep thescore!!Permission* Modify/delete SD card contents is used to write CSV file to SDcard* Internet access is used for ad and Dropbox accessNote :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.
LC Circuit Pro 1.2.0
Peter Ho
This app is used to calculate LC resonantcircuit. It is suitable for hobbyist or electronic engineers.Features:1. Calculate resonant frequency by capacitor and inductorvalues2. To find out combinations of capacitance and inductance making adesired resonant frequency3. Save all combinations in a CSV (Excel) file4. Use preferred values of capacitors and inductorsFeatures in PRO version only:1. Can use preferred value 5% for capacitor and 5% forinductor2. No Ads3. No limitationNote :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.
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 yourmath skills. in which you are given four numbers and have tocombine them using the four basic operations (+, -, *, /) to getthe challenge number in the end. By default, the challenge numberis set to be 24.- Fun for passing time and great to teach kids basic mathoperations.- A good game for both kids and adults to exercise your brain everytime you play.- Randomly generate puzzles- Adjust maximum limit of the challenge number between 10 and99- Adjust maximum limit of the four random number from 10 to99- Generate solutions for any set of four numbers
Series/Parallel Resistors Pro 2.6.0
Peter Ho
When you do not have an exact resistor valuein building a circuit, you need to combine two resistors either inseries or in parallel. This app is used to find out all thecombinations of these resistors making a desired resistance.This app is suitable for hobbyist or electronic engineers.Features:1. Calculate resistance of 2 resistors in series / parallel2. To find out combinations of 2 resistors in series / in parallelmaking a desired resistance3. Save all combinations in a CSV (Excel) fileFeatures in PRO version only:1. No Ad2. No limitationNote :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.
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 arethe basic circuits for hobbyist or electronic engineers. This appis used to calculate all possible resistor values approximate adesired ratioFeatures:1. Calculate resistor values of voltage divider2. Calculate resistor values of inverting amplifier gain3. Save component values in CSV file (Excel file)4. Use preferred values of resistorsFeatures in PRO version only:1. No Ad2. Can use preferred value 1% for resistor3. No limitationNote :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.
8051 Studio Pro 1.0.24
Peter Ho
This app is to generate C 8051 source codeautomatically. It is suitable for hobbyist or engineeringstudents.Have you forgotten how to set up the TCON, TMOD, SCON, IE registeretc.?8051 Studio is a rapid 8051 C source code generator. Just pick uppre-defined devices and press "generation" button. All the C 8051source code files will be generated. It works like a charm.You do not care about the signal sequence. Just call a functionShowString( ) allow you to write a string to a character LCD. 8051C programming is so easy after you have used the app.Features• Modular design and easy to use• Lots of electronic devices including led, buzzer, relay, keyswitch, keypad, human sensor, 7-segment, LCM 8-bit etc• Fast timer 0,1 setting• Pin conflict detection• Auto/manual pin assignment• One-click generation C 8051 source code• Optional demo : OLED, TFT 220x176, 18B20, MPU6050, DHT11, BMP180,DFPlayer mp3 module, stepper motor, servo motor, DC motor (PWM),infrared transmission, infrared decode, 2.4GHz 24L01, bluetoothhome automation etcFeatures in Pro• Support 93C46 eeprom• Support I2C eeprom 24C01 (128B) ~ 24C512 (64kB)• Support SPI eeprom 25010 (128B) ~ 25M02 (256kB)• Fast baud setup and auto generate UART interrupt routine• Fast timer 2 (8052 only) setup and auto generate timer interruptroutine• Extra devices : 8x8 led matrix, ADC, LCM 128x64, real timeclock• No Ads• No limitationNote :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.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.
Linear Equations Pro 1.1.0
Peter Ho
This app is to calculate linear equations.Features• Solve 2 linear equations• Solve 3 linear equations• Load linear equation from CSV file• Save linear equation to CSV fileFeatures in PRO version only:1. Solve 3~9 linear equations2. No AdsNote :1. For those who need support please email to meDo NOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.Tags : Linear equations, linear equation solver
AVR Tutorial 1.1.0
Peter Ho
This app is a AVR tutorial based on ATMEGA16 Clanguage. It is suitable for hobbyist or engineeringstudents.Learning AVR mcu is difficult. The learning curve is steep. Theprocess including reading datasheet, writing code, buildingprototypes and troubleshooting. The most possible errors are thesetting wrong value of registers.Now, AVR tutorial is the solution. The code wizard allow youto set the timer, UART, ADC, interrupt and peripherals by just afew clicks in setting. The proven C source code is generatedautomatically.Though the code wizard is based on ATMEGA16 , it is easy to port toother ATMEGA since the source code generated is highlystructuredFeatures• AVR architecture review• AVR asm mnemonics & C lanugage• 21 demo projects including led, keys, keypad, 16x2 LCM, ADCetc• Code wizard for UART, timer, interrupt, ADC and externalperipherals including LED, buzzer, key switch, external interrupt,7-segment display, 8x8 led matrix, 4x4 keypad, 16x2 LCM, real timeclock etcFeatures Pro• Support I2C eeprom 24C01 (128B) ~ 24C512 (64kB)• Support SPI eeprom 25010 (128B) ~ 25M02 (256kB)• Extra demo projects including LED Matrix 16x16, i2c eeprom, spieeprom, home automation etc• Code wizard for I2C eeprom, SPI eeprom, LCM 128x64 etchttps://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, it is notappropriate 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 1.1.0
Peter Ho
This app is a AVR tutorial based on ATMEGA16 Clanguage. It is suitable for hobbyist or engineeringstudents.Learning AVR mcu is difficult. The learning curve is steep. Theprocess including reading datasheet, writing code, buildingprototypes and troubleshooting. The most possible errors are thesetting wrong value of registers.Now, AVR tutorial Pro is the solution. The code wizard allowyou to set the timer, UART, ADC, interrupt and peripherals by justa few clicks in setting. The proven C source code is generatedautomatically.Though the code wizard is based on ATMEGA16 mcu, it is easy to portto other ATMEGA mcu since the source code generated is highlystructuredFeatures• AVR architecture review• AVR asm mnemonics & C lanugage• 26 demo projects including 16x2 LCM, i2c eeprom, spi eeprom, ADC,home automation, ultrasonic etc• Code wizard for UART, timer, interrupt, ADC and externalperipherals including LED, buzzer, key switch, external interrupt,7-segment display, 8x8 led matrix, 4x4 keypad, segment lcd, 16x2LCM, i2c eeprom, spi eeprom, RTC etc• Optional projects : 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* OLED 128x64 (SPI)* OLED 128x64 (I2c)* TFT 220x176* MPU6050 (accel + gyro) sensor* 18B20 temperature sensor* DFPlayer mp3 module* SPI flash* 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 is notappropriate 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.
RL Filter Pro 1.3.0
Peter Ho
This app is used to calculate RL filter. It issuitable for hobbyist or electronic engineers.Features:1. Calculate cutoff frequency by resistor and inductor values2. To find out combinations of resistance and inductance making adesired cutoff frequency3. Save all combinations in a CSV (Excel) file4. Use preferred values of resistors and inductorsFeatures in PRO version only:1. Can use preferred value 1% for resistor and 5% forinductor2. No Ads3. No limitationNote :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.
RL Filter 1.3.1
Peter Ho
This app is used to calculate RL filter. It issuitable for hobbyist or electronic engineers.Features:1. Calculate cutoff frequency by resistor and inductor values2. To find out combinations of resistance and inductance making adesired cutoff frequency3. Save all combinations in a CSV (Excel) file4. Use preferred values of resistors and inductorsFeatures in PRO version only:1. Can use preferred value 1% for resistor and 5% forinductor2. No Ads3. No limitationNote :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.
RC Circuit Pro 2.3.5
Peter Ho
This app is used to calculate the RC chargingcircuit and RC filter. It is suitable for hobbyist or electronicengineers.Features:1. Calculate time constant by R and C2. Calculate between time constant and % of charging3. Calculate cutoff frequency by resistor and capacitorvalues4. To find out combinations of resistance and capacitance making adesired time constant5. To find out combinations of resistance and capacitance making adesired cutoff frequency6. Save all combinations in a CSV (Excel) fileFeatures in PRO version only:1. No Ads2. No limitationNote :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.
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• Solve quadratic equation• Show real roots and complex roots• Calculate maximum or minimum point• Save result in text fileFeatures in PRO version only:• No Ads• Show equation in graphNote :1. For those who need support please email to meDo NOT use either the feedback area to write questions, it is notappropriate and that is not guaranteed that can read them.Tags : Quadratic equations