I have a Arduino BT, and I am trying to run a Lilypad Vibe board from one of its digital pins (pin 13).
When I set this pin high, the voltage is about 5V. However, it does not power the motor. I checked the current and it is about 4 mA. So, no wonder the motor is not running whereas an LED is.
However, these pins are supposed to output 40mA, enough for my motor. http://arduino.cc/en/Tutorial/DigitalPins
Can anyone tell me why I am getting this problem? Is there anyway to bump up the current short of an external power supply for the motor?