Open Source C Scientific/Engineering Apps for Android

See https://www.openorienteering.org/apps/mapper/

Advanced Trigonometry Calculator is equipped with a user-friendly interface that allows for easy input of problems and instant computation. Professionals such as engineers who need to perform advanced trigonometric calculations in their work will find this tool extremely useful. More info by clicking below: https://advantrigoncalc.sourceforge.io/ Advanced Trigonometry Calculator was only and always only developed by the Portuguese Renato Alexandre dos Santos Freitas. Also author of poems, reflections and thoughts published on the platform https://www.pensador.com/autor/renato_alexandre_dos_santos_freitas/ ATC is Made in Portugal. He was born in Coimbra on July 6, 1991. He has a degree in Electrical and Telecommunications Engineering and began developing ATC at the beginning of his undergraduate studies. He works for Miclearning, Lda since April 2020. Providing services to Multimac Hito Innovation.

- Celestial Navigation: Sight Reduction, Line Of Position, Fix... - Positional Astronomy: Nautical Almanac, RA, GHA, Dec - Coastal Navigation: Range, Bering, Horizontal angles, IALA... - Sailings: Rhumbs, Loxodromic, Orthodromic, Meridional parts... - Weather , Tides - Software: PC, Android https://sites.google.com/site/navigationalalgorithms/

Modular, touch screen friendly navigation system with GPS tracking, realtime routing engine and support for various vector map formats. Works on a wide range of devices, from computers to smartphones.

If you do a search for model rocket electronic payload, you will see a lot of entries for medium to high power, large diameter rockets. These types of rockets are large, typically 80mm (3.1 inches) in diameter or larger. These rockets are flown in large open areas, often deserts and dry lake beds. These larger rockets also use larger propellants, typically in the High Power Rocketry (HPR) range of “H” and above impulse level. Not only do these motors require you to be certified in HPR, the motors themselves tend to be rather expensive. My goal was to develop a system that could be used by high school students. It would involve proven rocket designs that could be flown on school yards. That meant it needed to be small, fitting everything into a body tube with a diameter no more than 42mm. This would allow it to use “D” or “E” motors. It would need to be flexible. I wanted the design to be a starting point to allow them to conduct real science and it had to be inexpensive.

This Android Library manages SPI, I2C, GPIO, ADC, UART and PWM in an Embeded System running Android.This library allows you to write Android applications that can use all hardware available in the system.

This project aims to control an Arduino board over the Internet, without the use of an ethernet shield.

Scalable Language API (SLAPI) The most comprehensive architecture for conversational natural-language applications including speech recognition/synthesis, semantics, & machine translation. Used on Android & other mobile app platforms.

An Open Source EBike Smart Controller for bicycles with Smart capabilities and hackable/configurable options for advanced users, with wireless (Bluetooth) communication with Android Smartphones and others.

TacitPixel is a scalable C++ framework for building application prototypes for interactive collaborative VR/AR applications. It provides a number of features that make prototyping fast and portable. TacitPixel is the successor of the TAP and Twisted Pair engines.

Android app now available! You can download .apk file from 'Files' section. (Or by visiting this page from your Android device) ---------------------------- A simple and useful GUI(Linux only) and command line program that lets you convert widely used temperature units to each other: Fahrenheit, Celsius and Kelvin. ------------------------------- Written by İ. Yuşa Çetin Using Python and gtk for GUI, C for algorithms and command line usage, Java for the Android version. ------------------------------------- This is still a Beta, so no one in the universe is responsible for anything happens :) I have it on my own computer and it's working properly. If you find any bugs feel free to tell me : yusha493@gmail.com --------------- If you are interested in translating the Android app to another language,current languages: *English *Turkish -Both by me :) ,please contact me: yusha493@gmail.com

Tests all I/O pins using only one wire

Designed for data-logging applications (weather, hydroponics, greenhouses, aquariums, home automation, power consumpion, solar or wind generators etc.), this solution can be useful also in alarms and burglar. Now you can develop MySQL and web enabled Arduino applications only working on Arduino and PHP. To keep ligth the Arduino Sketch, you can port all not realtime logic to PHP side. At the end your application will works on XQ+Arduino UNO even 24/7 with only 20 Watt AC power, and can be controlled by smartphone via WiFi or from Internet using some free dynamic IP. What more? Enjoy. Sources in github https://github.com/msillano/USBphpTunnel Preconditions: MXQ + Palapa Web server, Arduino UNO Install: - Download USBphpTunnel11_d.apk and the full test_files dir - See file /test_files/readme.txt

Over 75 C++ function for working with vectors, matrix and quaternions. Inside the package there is no cycles, if's, classes or structures. Ideal for designing 3D engines. Headlines of functions are intuitive. For each headline there is a one line comment in Russian. Matrix are presented in OpenGL form 0 4 8 12 1 5 9 13 2 6 10 14 3 7 11 15 Now we are working on adding 50+ more functions for processing the planes, splines, bezier curves and interpolation methods.

ISL Equilibrium Calculator,which process solid-liquid equilibrium calculation by using Harvie extended Pitzer's ion interaction electrolyte solution model and particle swarm optimization Gibbs free energy minimization (GEM). ISLEC is an efficient tool for solid-liquid equilibrium calculation, and can simulate the crystallization path of seawater and salt lake brines. ISLEC is suitable for related researches and process design.

Multi-platform tools and information for programming and controlling LEGO MINDSTORMS programmable bricks, such as the NXT, via USB and Bluetooth.