There’s now a program that will listen for all the messages sent to the MQTT broker and log it to a csv file. This is useful to store the data. Right now, the parameters that are saved are simply the date, time since the epoch, topic, payload, qos and retain. It was interesting to see the retained messages on the server be instantly sent when the logger program subscribed to the topics. There is currently one uncertainty with the code, the logger opens and closes the file each time it is being written. Will this become a bottleneck when there will be plenty of messages and a queue forming? It will be interesting to test. For a prototype, it works. The next step was to write the intelligence program. That was simple, and it is complete too. The next step following that is to find the real sensors electronics for the device.
Derived a python program from convert_data.py to loop through an already processed Bowie log file, called loglooper. When it processes a line, it also sends the data to the MQTT broker. There’s a 1 second delay per line. The server was able to receive the data perfectly. The next step was to try to get this program to run continuously using nodejs forever. Originally encountered some difficulties related to the spinSleepTime and minUptime, which were changed from 1000 ms to 5000 ms. It’s now working continuously with forever. The next step will be to receive the data on the map and draw a dot. As well as transferring the python loglooper to the server to run on AWS.