   return n;
 }
 
-// print help message
-void help()
-{
-  for( int i=0; i<strlen(helpstr); i++ ) { 
-    Serial.print( (char) pgm_read_byte(helpstr+i) );
-  }
-}

 *  and you'll see a menu of things to do.
 *
 *
 * BlinkM connections to Arduino
 * PWR - -- gnd -- black -- Gnd
 * PWR + -- +5V -- red   -- 5V
 * I2C d -- SDA -- green -- Analog In 4

 * Note: This sketch DOES NOT reset the I2C address of the BlinkM.
 *       If you want to change the I2C address use the 'A<n>' command.
 *
 *
 * Wiring hookups:
 *
 * Arduino Uno to BlinkM:
 * Gnd - Gnd, 5V - Vcc, A4 - SDA, A5 - SCL
 *
 * Sparkfun Pro Micro (ATmega32U4) to BlinkM:
 * Gnd - Gnd, 5V - Vcc, D2 - SDA, D3 - SCL
 *
 * Adafruit Trinket M0 to BlinkM2:
 * Gnd - Gnd, 3V - Vcc, D0 - SDA, D2 - SCL
 *
 * 
 *
 * 2007-20, Tod E. Kurt, ThingM, http://thingm.com/
 *
 */

