Arduino: True Random Number Generator.
This project refers to an Arduino sketch that implements a true random number generator with the help of an audio sensor. The sensor measures the sound volume in the nearby environment. The Arduino acts as a network device with an appropriate WEB interface in it from which we can access the random numbers. This technology is not new as it exists in other network devices. For example, routers or network printers have a WEB interface.
The WEB interface is installed in the Arduino itself and is supported with the help of a simple but quite progressive web server (which is also located within the Arduino). The Arduino is connected to the Internet with a special Ethernet card (Ethernet Shield). The Ethernet card is assigned with a static IP (because the Arduino in this case does not work as a client but as a server since the web server is executed there at port 80).
To enable the sound sensor to collect really random values as regards the volume of sound in the environment, it helps to place it in a noisy room or near a radio.
For more information you can get the project itself:
Various images of the application.
- The project ‘zws’ (Zepto Web Server).
- How to create an abstract syntax tree while parsing an input stream.
- Techniques for resolving common grammar conflicts in parsers.
- How to unify similar tokens when constructing parsers and lexers.
- Using literal character tokens when designing lexers and parsers.
- Implementing the “include” directive to support nested input files.
- Regular expressions for matching data values in compiler lexers.
- Articles (66)
- Compilers & Interpreters (15)
- Data Structures & Algorithms (25)
- Desktop Applications (4)
- Electronic Games (6)
- Embedded Systems (52)
- Events (19)
- Hobbies (4)
- Internet Applications (16)
- Libraries & Frameworks (12)
- Machine Learning (16)
- News (5)
- Numerical Methods (7)
- Operating Systems (4)
- Projects (77)
- Security Systems & Access Control (9)
- Tools & Filters (8)
- Writings (1)
- 114,236 clicks
- Free Software Foundation statement on the GNU Bash "shellshock" vulnerability
- LibrePlanet is coming March 21-22, 2015, call for proposals now open for annual free software conference
- ThinkPenguin wireless router now FSF-certified to respect your freedom
- Free Software Foundation statement on the new iPhone, Apple Pay, and Apple Watch
- FSF and Debian join forces to help free software users find the hardware they need
- Free Software Foundation adds libreCMC to its list of endorsed distributions