Code is for Arduino.

Add code to the ReadAnalogVoltage example to calculate the period of a square wave. Here is pseudo-code you can translate to Arduino C, add this into the loop function: Note: - You will need a local variable that is a floating-point number named dt - You will need a global variable that is a whole number of type "unsigned long" named lastmillis. - You will need to declare the other variables too - Write code in the setup function that initializes lastmillis to the output of the millis () function. - Setup the serial port for 9600 baud communication for the printing. - Print dt to the serial port with 9 decimal places. - If it is zero you probably have an integer/float conversion problem in the equation for dt. - You can force integers into floating point using the float() function. o Look up the documentation on Serial.print to see how to change the number of decimal places printed - Add a comment above each line of code that explains what it does