Arduino: String to Int - Here's how

When programming the Arduino you sometimes have to convert strings to integers. You can find out how to do this in this practical tip

Arduino: String to Int

So that you can convert a string into an integer on the Arduino, you must first define a new string with a command such as »String a =" 23 "«.

• To convert this string into an integer, you need an integer variable. You can also automatically assign the correct value to it.
• You can do this with the command »int b = atoi (a);«. The variable "b" now has the value 23 as an integer.
• However, make sure that the string contains no spaces or letters.

In the next practical tip, we will show you how to build a voltmeter with the Arduino.