Practical C Programming

How it works...

We define a variable called voltage, of the float data type, and a variable called tempPin, of the integer type; we will set the latter to represent pin 0 of Arduino. In order to make our PC communicate with Arduino using serial communication, we need to set the data rate in terms of bits per second. So, we will call the Serial.begin function to set the serial data transmission speed to 9,600 bits per second (however, it can be any baud rate).

Within the loop function, we will invoke the analogRead function to read the value from the specified analog pin, 0. Recall that the Arduino boards contain a multichannel, 10-bit analog to digital converter that maps input voltages between 0 and the operating voltage (5V or 3.3V) into ...