IoT based temperature data logger on cloud over MQTT protocol
Steps:
1)Creat a Channel on Thingspeak.
2)Enter the name of Channel name and Filed 1 as "Temperature".
3)Keep the Writing API key safe.
4)We are using MQTT Protocol to publish data to cloud, via MQTT API Key.
5)sever.py script is used for connection.
6)edge.py scipt contains program that reads each points every-60 sec delay and publish to the cloud.
7)for random Connection Success/failure, a simple program is used. A random int is generated between 0 to 5, if the int is less than 3, the data will be published to cloud otherwise it will be stored in local text file.
8)A threaded program bufferdata() that runs every 5 seconds to check if there is any data stored in buffer.txt file,if so it will publish that data and cleans the buffer.
==> A Sample Video of project is Uploaded that reads data every 5 seconds (for realization)
Flowchart of Program