Saving sensor data to a file

Overview

• In this lesson we are going to learn how to save our sensor data to a file.
• Saving data to a file will keep it safe.
• Once data is in a file, we can read the data again and make a graph.
• Reading, saving a graphing data is very important for all environmental and Citizen Science activities.
• Sensors often deliver data a numerical data. Some simple examples are temperature, time, speed, counts, etc.
• In this example we are going to save our data as a String (or text).
• Most files store data as text. In this example we also need to separate the data using commas (,).
• If data is separated by commas it makes each data element human readable and other programs, such as Spreadsheets, can also read the file more easily.

Learning Objectives

• Learn how convert numerical data into a String (or text)
• Learn how to save data to a new empty file
• Learn how to read a saved file and check for data integrity