IoT Engineering

Hands-on of lesson 9

For slides and example code, see lesson 9

Note: Do not work on this repository right away.
Check existing forks to find the specific repository for your class.

a) Dashboard as a service, 15'

• Choose a dashboard service and a transport protocol, try ThingSpeak, Cayenne or ThingsBoard.io.
• Check the API docs to understand the payload format.
• Send data "as a device" with curl or with the mqtt CLI.
• The CLI runs on the Raspberry Pi or on your laptop.

b) Glue code, 15'

• Configure the TTN to ThingSpeak adapter glue code.
• Create a free account and host the code on Zeit Now.
• Use curl to simulate calls from the TTN backend:

  $ curl -v http://127.0.0.1:8080/ --data '{"app_id":"fhnw-iot","dev_id":"fhnw-iot-arduino-1","payload_raw": "FwAqAA=="}' # Base64

• Replace 127.0.0.1:8080 with your Zeit Now URL.

c) Docker hosted dashboard, 15'

• Install Docker on your computer (not Raspberry Pi).
• Run InfluxDB and run/create a Grafana dashboard.
• Run Telegraf to get data from test.mosquitto.org.
• Send data "as a device" with mqtt, to Mosquitto.