Contiki-NG

https://docs.contiki-ng.org/en/develop/

Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. It focuses on dependable (secure and reliable) low-power communication and standard protocols, such as IPv6/6LoWPAN, 6TiSCH, RPL, and CoAP. Contiki-NG comes with extensive documentation, tutorials, a roadmap, release cycle, and well-defined development flow for smooth integration of community contributions.

Unless explicitly stated otherwise, Contiki-NG sources are distributed under the terms of the 3-clause BSD license. This license gives everyone the right to use and distribute the code, either in binary or source code format, as long as the copyright license is retained in the source code.

Contiki-NG started as a fork of the Contiki OS and retains some of its original features.

Find out more:

• GitHub repository: https://github.com/contiki-ng/contiki-ng

• Documentation: https://docs.contiki-ng.org/

• List of releases and changes: https://github.com/contiki-ng/contiki-ng/releases

• Web site: http://contiki-ng.org

Engage with the community:

• Discussions on GitHub: https://github.com/contiki-ng/contiki-ng/discussions

• Contiki-NG tag on Stack Overflow: https://stackoverflow.com/questions/tagged/contiki-ng

• Gitter: https://gitter.im/contiki-ng

• Twitter: https://twitter.com/contiki_ng

Cooja

Cooja is a network simulator used primarily with Contiki-NG, an open-source operating system designed for the Internet of Things (IoT) and wireless sensor networks (WSNs). It's a popular tool for simulating and emulating IoT applications and network protocols before deploying them on actual hardware.

Key features and aspects of Cooja in Contiki-NG:

1. Simulating IoT Networks:

   • Cooja allows users to simulate large-scale IoT networks consisting of various IoT devices, sensor nodes, and communication protocols.

2. Emulation Environment:

   • It provides an emulation environment where users can create and configure virtual IoT devices and simulate their behavior, interactions, and communication patterns.

3. Realistic Network Scenarios:

   • Users can design complex network topologies and scenarios to mimic real-world IoT environments, allowing testing of applications and protocols under various conditions.

4. Contiki-NG Integration:

   • Cooja is tightly integrated with Contiki-NG, enabling users to simulate Contiki-based applications and protocols accurately.

5. Debugging and Analysis:

   • It offers debugging and visualization tools to monitor the behavior of simulated nodes, network traffic, energy consumption, and other parameters for debugging and analysis purposes.

6. Support for Multiple Platforms and Protocols:

   • Cooja supports various hardware platforms and communication protocols that Contiki-NG can run on, providing a versatile testing environment.

7. Scripting and Automation:

   • It supports scripting and automation capabilities, allowing users to create automated test scenarios and run batch simulations.

8. User-Friendly Interface:

   • Cooja provides a graphical user interface (GUI) that simplifies the process of creating, configuring, and managing simulated IoT networks.

Overall, Cooja serves as a valuable tool within the Contiki-NG ecosystem, enabling developers and researchers to experiment, validate, and optimize IoT applications, protocols, and algorithms in a simulated environment before deploying them on real hardware. This simulation capability helps in reducing development time, testing different scenarios, and ensuring the robustness of IoT solutions.