I am designing a device for the purpose of measuring the degree of fermentation and the temperature of the beer that I began to produce by hand.
I use the Arduino and HC-06 bluetooth module to collect and transmit some of the required parameters.
I can stream the temperature measurements to the mobile application in real time, however, if I move away I lose all the data history. I would like a suggestion from you on how to store the data in the arduino and then get all the history whenever I wish. I collect the temperature of the beer every 15 minutes. The fermentation process takes days and days. My goal is for the application to plot a chart with the entire measurement history, mapped to the day and time it was collected, whenever I connect my cell to the bluetooth module.