Ethernut
Ethernut is an open-source, embedded networking platform based around Atmel AVR microcontrollers. It encompasses both hardware designs and a software stack providing a comprehensive solution for building networked embedded systems.
The Ethernut hardware typically consists of a small, single-board computer featuring an AVR microcontroller, Ethernet interface, and often other peripherals like serial ports, timers, and digital I/O. Several different hardware versions have been developed, offering varying levels of processing power and connectivity options.
The software component, known as Nut/OS, is a real-time operating system (RTOS) specifically designed for AVR microcontrollers. Nut/OS provides a multitasking environment, a TCP/IP stack, file system support, and a range of device drivers. It's licensed under the GNU General Public License (GPL), making it free to use and modify.
Key features and characteristics of Ethernut include:
- Open-source: Both hardware designs and software are freely available and modifiable.
- AVR-based: Utilizes the popular and widely supported Atmel AVR microcontroller family.
- Embedded networking: Designed specifically for applications requiring network connectivity.
- Real-time operating system: Nut/OS provides a real-time multitasking environment.
- TCP/IP stack: Includes a full TCP/IP stack for network communication.
- Modular design: Both hardware and software can be easily extended and customized.
- Community support: A dedicated community provides support and resources for Ethernut users.
Ethernut is often used in applications such as:
- Industrial automation
- Home automation
- Remote monitoring and control
- Data acquisition
- Internet of Things (IoT) devices