/* ASCII table Prints out byte values in all possible formats: * as raw binary values * as ASCII-encoded decimal, hex, octal, and binary values For more on ASCII, see http://www.asciitable.com and http://en.wikipedia.org/wiki/ASCII The circuit: No external hardware needed. created 2006 by Nicholas Zambetti modified 9 Apr 2012 by Tom Igoe This example code is in the public domain. */ void setup() { //Initialize serial and wait for port to open: Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for native USB port only } // prints title with ending line break Serial.println("ASCII Table ~ Character Map"); } // first visible ASCIIcharacter '!' is number 33: int thisByte = 33; // you can also write ASCII characters in single quotes. // for example. '!' is the same as 33, so you could also use this: //int thisByte = '!'; void loop() { // prints value unaltered, i.e. the raw binary version of the // byte. The serial monitor interprets all bytes as // ASCII, so 33, the first number, will show up as '!' Serial.write(thisByte); Serial.print(", dec: "); // prints value as string as an ASCII-encoded decimal (base 10). // Decimal is the default format for Serial.print() and Serial.println(), // so no modifier is needed: Serial.print(thisByte); // But you can declare the modifier for decimal if you want to. //this also works if you uncomment it: // Serial.print(thisByte, DEC); Serial.print(", hex: "); // prints value as string in hexadecimal (base 16): Serial.print(thisByte, HEX); Serial.print(", oct: "); // prints value as string in octal (base 8); Serial.print(thisByte, OCT); Serial.print(", bin: "); // prints value as string in binary (base 2) // also prints ending line break: Serial.println(thisByte, BIN); // if printed last visible character '~' or 126, stop: if (thisByte == 126) { // you could also use if (thisByte == '~') { // This loop loops forever and does nothing while (true) { continue; } } // go on to the next character thisByte++; }