• Riddhi Satam
• Damini Kongere
• Prabhat Chauchan
• Vivek Pandey

Both Internets of Things and blockchain technologies are indeed being thoroughly researched and widely used in a variety of domains, namely e-healthcare. With the digital revolution and sensor downsizing, there are trials underway to apply the latest tech in a wide range of domains to improve human livelihood. The medical field is one of the core fields of study that has seen massive technology adoption. Families with a need for medical services often find treatments to be outrageously expensive, and this is certainly the case in poor countries. As a reason, this study is aimed to tackle an existing societal healthcare crisis. As a result, the suggested system utilizes an Arduino microcontroller to gather sensor information and transmit it to the Thing speak platform, where it is gathered and analyzed for remote viewing. The goal of this article is to develop a monitoring device using IoT components such as an Arduino UNO, a temperature sensor (LM35), a humidity and temperature sensor (DHT11), a pulse sensor, an air quality index (MQ135), and an ESP01 that is financially viable and maintain data in a distributed network. Hence, the proposed system collects the sensor data through an Arduino microcontroller and relays it to the Thing speak server where it's processed and analyzed for remote viewing. Data via Sensor nodes are collected for measurement, sorting, and storage. This sort of centralization can be problematic since it can lead to system failure, uncertainty, data modification and manipulation, and invasions of privacy. Blockchain technology has the potential to alleviate such critical issues by enabling distributed computing and storage resources of IoT data. In a conclusion, combining IoT with distributed ledger technology may be a viable option for implementing decentralized IoT-based medical systems.

IOT, Embedded System, Decentralized, Sensors, Blockchain Technology.

" Blockchain-Enabled Iot Based Intelligent Health Monitoring System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 4, page no.g373-g379, April-2022, Available :http://www.jetir.org/papers/JETIR2204657.pdf

" Blockchain-Enabled Iot Based Intelligent Health Monitoring System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 4, page no. ppg373-g379, April-2022, Available at : http://www.jetir.org/papers/JETIR2204657.pdf