GTM Stack: IoT Data Analytics at the Edge
Exploring the convergence of IoT, Data Analytics, and Edge Computing with Grafana, Mosquitto, and TimescaleDB on ARM-based devices
In the following post, we explore the integration of several open source applications to build an IoT edge analytics stack designed to operate on low-cost, ARM-based edge nodes. We will use the stack to collect, analyze, and visualize IoT data without first shipping the data to the Cloud or other external systems.
This post is a revised version of an earlier post, featuring major version updates of TimescaleDB (v1.7.4-pg12 to v2.0.0-pg12), Grafana (v7.1.5 to v7.5.2), and Mosquitto (v1.6.12 to v2.0.9). All source code and SQL scripts are revised. Note that TimeScaleDB has a current limitation/bug with Docker on ARM later than v2.0.0.
The Edge
Edge computing is a fast-growing technology trend, which involves pushing compute capabilities to a network’s edge. Wikipedia describes edge computing as a distributed computing paradigm that brings computation and data storage closer to the location needed to improve response times and save bandwidth. The term edge commonly refers to a compute node at the edge of a network (edge device), sitting close to the data source and between that…
