Environmental monitoring as an IoT application in building smart campus of Universitas Udayana

TLDR: A wireless sensor network in internet of thing for environmental monitoring application that uses EPS8266 to send data directly to the internet, and uses Arduino and XBee 802.15.4 in multi hop wireless network.

Abstract: The idea of Internet of Things as a platform in smart campus has become increasingly popular. It requires an infrastructure comprised of communication networks, sensor nodes, and gateways to connect to the Internet. Each sensor node is responsible to collect data from the surrounding environment. This paper designs a wireless sensor network in internet of thing for environmental monitoring application. There are two scenarios design for this project. One uses EPS8266 to send data directly to the internet, and the other is to use Arduino and XBee 802.15.4 in multi hop wireless network. In the latter, data from several nodes are collected by an aggregator and send them to the gateway. The wireless communication between the nodes and aggregator is based on XBee 802.15.4 Radio. The XBee radios that connected to the nodes will act as a router, while another one that connected to the gateway act as coordinator. Arduino Wi-Fi shield with 802.11 standard is used to send the information to a web server. A web server based on Webrick with Ruby on Rails platform is built to display the measurement results.