cbernet/iot_dummy_sensor repository overview

⁠Dummy sensor (influxdb)

This dummy sensor writes to an influxdb database, and is used to demonstrate a possible IOT pipeline with three services:

• the said sensor
• an influxdb server
• a grafana server for display

⁠Settting up the stack

The stack was tested on a mac with Docker Desktop (amd64 architecture), and on a raspberry pi 3B+ (armv71 architecture).

There were two slight issues in setting up these stacks:

• grafana does not work on arm
• on the raspberri pi, the docker compose version v3 is not supported (at least in my install of docker).

Therefore, I provide two different docker-compose.yml files, one for each architecture:

amd64⁠:

• docker-compose version 3
• official grafana container⁠

armv71⁠

• docker-compose version 2
• unofficial grafana container for arm by proxx⁠ (thanks!)

Download the one you need, and do:

docker-compose up 

to start the stack.

⁠Visualizing the data

The dummy sensor in this image generates a point on a sine wave every s and stores it in the influx db database.

Point your browser to http://localhost:3000⁠

Log in to grafana with the default username and password (admin/admin), and configure your dashboard to read from influxdb.

⁠Going further:

Just write your own sensor image to collect some data that is actually useful!