Two short questions, maybe anyone can help…
Are there any restrictions in using Digital Out 13, as there is built-in resitor for LEDs, or can it be used for software generated PWM for instance as any other Digital Out? In other words: is the voltage here too low here for some applications?
I saw on http://www.arduino.cc/playground/ComponentLib/Servo that Analog In 0 and 1 can be used as Digital Out 14 and 15.
→ Seems to work for all Analog Ins as Digital Out 14-19 on my Arduino NG with the arduino-0008!
2a) Is this a hidden function due to the design of the ATmega-168? If yes, will is it (elecrically and so on) save to use?
2b) Will it be supported in future versions of the Arduino-board?
Maybe someone of the Arduino-Team can answer the “2b)” question? Thanx!