Adding a basic encode/decode example

Author: nfriedly

examples/base64/base64.ino

@@ -0,0 +1,60 @@
+#include <Base64.h>
+
+/*
+ Base64 Encode/Decode example
+ 
+ Encodes the text "Hello world" to "SGVsbG8gd29ybGQA" and decodes "Zm9vYmFy" to "foobar"
+
+ Created 29 April 2015
+ by Nathan Friedly - http://nfriedly.com/
+ 
+ This example code is in the public domain.
+
+ */
+
+
+void setup()
+{
+  // start serial port at 9600 bps:
+  Serial.begin(9600);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
+  
+  Serial.println("Base64 example");
+  
+  
+  
+  // encoding
+  char input[] = "Hello world";
+  int inputLen = sizeof(input);
+  
+  int encodedLen = base64_enc_len(inputLen);
+  char encoded[encodedLen];
+  
+  Serial.print(input); Serial.print(" = ");
+  
+  // note input is consumed in this step: it will be empty afterwards
+  base64_encode(encoded, input, inputLen); 
+  
+  Serial.println(encoded);
+  
+  
+  
+  // decoding
+  char input2[] = "Zm9vYmFy";
+  int input2Len = sizeof(input2);
+  
+  int decodedLen = base64_dec_len(input2, input2Len);
+  char decoded[decodedLen];
+  
+  base64_decode(decoded, input2, input2Len);
+  
+  Serial.print(input2); Serial.print(" = "); Serial.println(decoded);
+}
+
+
+void loop()
+{
+  
+}