Bringing TCP/IP networking to resource limited embedded systems

The TCP/IP network interface is considered a luxury feature in many embedded devices because it is expensive to implement. It requires additional hardware and complex software to enable the device to be accessible on the local area network or over the Internet. This paper describes a simple way of integrating a simplified TCP/IP stack with the Romantiki operating system. Our approach allows the user to use standard multithreaded approach to write application code, and at the same time use a small memory footprint similar to super loop based applications. This approach paves the way to have complex devices running standard TCP/IP applications on a very inexpensive and energy efficient microcontrollers with a small RAM and Flash memories.