For demo purposes and to be able to check if the messages are coming from the IoT cloud without looking at the screen all the time I created super simple Node-RED flow that receives messages from IBM’s IoT cloud and log them in the debug tab of the Node-RED UI and in parallel it parses JSON format of the messages to obtain value of the „temp“ property which is then passed to OS X say command.
It can be easily modified to pick another property value just by modifying „JSON and parse“ node.
Today we will connect the MQTT bus that is core part of IoT Cloud to the MongoDB using Node-RED flow.
The goal is to have the values – that are sent by our simulated device – stored in our database to be able to display them to an user.
We need to add MongoDB to our Bluemix application. Pokračování textu Home automation as a weekend project using IBM’s Clouds – part 2
In my last post I used a Ruby based device simulator publishing MQTT messages to IBM IoT Cloud. In the meantime I realized that the same can be easily achieved using Node-RED tool.
Here is how. Pokračování textu IoT Cloud Device simulator in a minute using Node-RED