Best Siu Yuen Ho Apps

Calculate time constantFind component valuesGet voltage at time t

Calculate RC charging and filter circuits, including time constants and cutoff frequencies. Find component values from these parameters or get voltage at specific times. Save and share data easily.

Track your archery scores with detailed record-keeping for each session. Log field conditions, customize your shooting setup, and review your performance history. Share your progress and manage your data with backup and restore options.

Record archery scores in a databaseLog field conditions (distance, face size)Customize ends and arrows per end

⚽ Sports

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Electronics Kit

Component value calculatorsExtensive pinout diagramsElectronic resource library

This app offers a comprehensive suite of electronics tools and calculators for hobbyists and professionals. It includes features for component value calculation, pinout diagrams, and various electronic resources. Users can access a free version with ads or a PRO version for enhanced functionality and an ad-free experience.

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My Bowling Scoreboard Ultra

Bowling Score & Pin Tracker

$2.99

Effortlessly record bowling scores and track pin locations. Analyze your performance with detailed statistics, compare data, and export your history. Improve your game with this comprehensive tool for bowlers of all levels.

Record bowling scoreTrack bowling pin locationAnalyze score statistics

This utility app provides a suite of tools for calculating and determining resistor values. It assists hobbyists and engineers with series, parallel, and voltage divider calculations, as well as inverting amplifier gain.

Series and parallel resistor calculationResistor combination finderVoltage divider ratio and value calculation

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Scoreboard for Duckpin Lite

Record bowling scoresTrack pin locationsView score statistics

Track your duckpin bowling scores and pin placements with this app. It allows you to record game data, view statistics, and export your history to CSV files. Supports up to two bowlers and ten history records in the free version.

Record your location data with detailed metrics like latitude, longitude, altitude, speed, and distance. Save your tracks in various file formats and share them easily. The PRO version removes ads and limitations.

Log latitude, longitude, altitude, speed, and distanceSave data in CSV, KML, GPX, TCX, FITLOG, and NMEASupports Apple Maps and Google Maps

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AVR Tutorial

AVR architecture reviewAVR assembly and C language21 demo projects

This app simplifies learning AVR microcontrollers with a code wizard that generates C source code for various peripherals. It offers demo projects and an architecture review, making complex MCU programming more accessible for hobbyists and students.

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My Archery Pro

Record archery scoresLog field conditions (distance, face size)Customize ends and arrows per end

$1.99

Track your archery performance with detailed scorekeeping and historical data. Log field conditions, customize rounds, and analyze your progress with insightful statistics. Share your achievements and back up your data securely.

⚽ Sports

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8051 Tutorial

8051 architecture review8051 assembly mnemonics8051 C language programming

Learn 8051 microcontroller programming in C with this comprehensive tutorial. It covers architecture, assembly, and C language, featuring 11 practical projects. An optional Pro version offers additional projects with source code and advanced features.

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Easy Expense Lite

Easy to use interfaceTrack income and expensesCustomizable categories

Easily track your income and expenses with a user-friendly interface. Customize categories, modify or delete records, and export data to CSV. Back up your database and send reports via AirDrop.

💰 Finance

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Voltage Regulator

Adjustable voltage regulator supportCalculate resistor combinationsDetermine resistor values

Calculate resistor combinations for adjustable voltage regulators. This tool helps electronics hobbyists and professionals determine desired output voltages and resistor values. Results can be exported and shared easily.

Explore a variety of demo projects for Arduino development boards, including displays, sensors, and automation. Control home appliances with voice assistants and send sensor data to IoT platforms. New projects are added regularly.

Display projects (LCM, OLED, TFT)Sensor projects (temperature, pressure, heart rate)Home automation with voice assistants

This application serves as a calculator for thermistors, supporting both Beta and Steinhart-Hart models. It facilitates conversions between temperature and resistance, and visualizes this relationship with a temperature-resistance graph. Ideal for hobbyists, students, and engineers.

Beta model supportSteinhart-Hart model supportTemperature to resistance conversion

📚 Education

(3)

free

Workshop for Raspberry Pi Pico

Display projects (LCM, OLED, TFT)Sensor projects (temperature, pressure, motion)Home automation (Wi-Fi, Bluetooth, LoRa)

Explore a variety of demo projects for Raspberry Pi Pico, covering displays, sensors, automation, memory, IoT, audio, and more. Ideal for makers, electronics enthusiasts, and engineering students.

📚 Education

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free

Timer 555 Calculator Pro

Calculate monostable pulse widthCalculate astable frequencyFind component combinations

$0.99

Calculate parameters for monostable and astable circuits. Find component combinations for desired pulse width or frequency. Share circuit files via iCloud Drive or AirDrop.

Partial fraction decomposition

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paid