Hello,
do you know if i put on the Vin port a voltage of 1.5V with a current of 50mA:
Do the digitals ports provide the same voltage and current or it provide a 5V for 500mA?
Is it possible to decide which source of voltage and current is provided by the digitals ports?
thanks
The Vin pin is used to power the Arduino. It needs to be 5V for the chip to operate properly.
vivivi:
Hello,
do you know if i put on the Vin port a voltage of 1.5V with a current of 50mA
No No 
Is it possible to decide which source of voltage and current is provided by the digitals ports?
Again No 
I think you should read how an Arduino Works and then try anything else..
http://arduino.cc/en/main/arduinoBoardUno
vivivi:
do you know if i put on the Vin port a voltage of 1.5V with a current of 50mA:
Do the digitals ports provide the same voltage and current or it provide a 5V for 500mA?Is it possible to decide which source of voltage and current is provided by the digitals ports?
I'm worried that you may do something that will damage your Arduino.
Please describe what you are trying to achieve.
...R
PaulS:
The Vin pin is used to power the Arduino. It needs to be 5V for the chip to operate properly.
Will it work with 5V as VIN is pre 5V regulator.
[Will it work with 5V as VIN is pre 5V regulator.
You need ~+7VDC at Vin
Input Voltage (recommended) 7-12V
FYI #4 was a rhetorical question.
You must use a 74274 to protect Vin pin...
MSL:
You must use a 74274 to protect Vin pin...
What is that ? Protect it from what ?