Next step is to start adding new devices to the map – so on to the hardware with MQTT on an ESP32.
There’s now a dot being displayed on the map corresponding to the data received through MQTT on the AWS server. The loglooper of Bowie’s data, which sends the MQTT messages, is running continuously on the AWS server too. There was a minor change in the topic structure. Now the sensor value falls under air, water, or soil. The number of data points in each of those topics will be added to a counter which will eventually be displayed along the bottom of the page. The next step is to find a better data structure for multiple devices. The data structure should be chosen with the future possibility of dynamically loading / unloading based on the map position. After this, will be prototyping and testing sending data from an IoT device *live* in the field.