IoT Sensor Data Acquisition and Storage System Using Raspberry Pi and Apache Cassandra

In this paper, we introduce an alternative solution to the many existing IoT data acquisition and storage systems. We present a self-designed and developed prototype electronic circuit extension for Raspberry Pi development board used for collecting sensor data. There is also presented a Pi4Java API based Java application used for sensor data collection and storage. We set up an Apache Cassandra database cluster, to stores large amounts of sensor data on low-cost servers, providing high availability. In addition, a web application is also presented, that allows different data visualization operations to be performed on the stored data. The presented system is a full IoT data acquisition, storage and visualization solution.