CONTIKIi OS WITH COOJA SIMULATOR: A Framework For IOT Simulation

Contiki is an open source OS for networked and memory constrained systems with a focus on low power wireless Internet of things devices. It mainly deals with tiny low cost micro controllers and sensors which are connect to the internet. The major use of contiki is that street lighting systems, sound monitoring for smart cities, radiation monitoring systems, and alarm systems. Contiki is preffered because it supports various internet standards , dedicated hardwares, rapid developments, active community for help and also big commercial and customer support with open source licence. This was created by Adam Dunkels in 2002 and further development were done by Texas Instruments, Atmel, Cisco, ENEA, ETH Zurich, Redwire, RWTH Aachen University, Oxford University, SAP, Sensinode, Swedish Institute of Computer Science, ST Microelectronics, Zolertia, and many others. The name Contiki comes from Thor Heyerdahl's famous Kon-Tiki raft. Despite providing multitasking and a built-in TCP/IP stack, Contiki only needs about 10 kilobytes of RAM and 30 kilobytes of ROM. A full system, complete with a graphical user interface, needs about 30 kilobytes of RAM.

Instant Contiki is an entiredevelopment environment for contiki and it is a linux based virtual machine and that runs in VMWare Player. It has development tools, compilers, and simulators used in Contiki development installed. In real, contiki is a complex software, but cooja and instant contiki make it simple to install and start with.

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