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Automated and Decentralized Framework for Internet of Things Systems using Blockchain and Smart Contracts
This paper describes a framework for IoT systems that use Blockchain technology and smart contracts. Such systems ensure the storage of information in a decentralized and secure database and can perform transactions between nodes automatically. The architecture of the system is like a LoRaWAN architecture in which the gateway nodes form a blockchain subsystem that runs command scripts for data filtering. The paper focuses on implementing gateways using a precision analog microcontroller ARM Cortex M3 with RF Transceiver ADuCRF101 and evaluating performance as computing time and energy consumption.