05-14-2015, 11:57 AM
Does sound like there's something wrong on the PC side. I just plugged my other Arduino in and Device Manager shows under Ports "Arduino Leonardo (COM3)" and the details show a date of 04/01/2013 and the file is \Windows\system32\Drivers\usbser.sys
I had to disable my BT driver (COM6) in Device Manager, otherwise I couldn't even upload any sketches (it said couldn't open COM4, so obviously that was confusing it and making it try to upload to the wrong port, even though I had COM3 selected in IDE).
I uploaded the Blinking LED sketch, which worked and showed Hello World in the Serial Monitor. Then I uploaded this sketch, which repeats back anything I type in the serial monitor.
So see if you can get that working to start with.
I had to disable my BT driver (COM6) in Device Manager, otherwise I couldn't even upload any sketches (it said couldn't open COM4, so obviously that was confusing it and making it try to upload to the wrong port, even though I had COM3 selected in IDE).
I uploaded the Blinking LED sketch, which worked and showed Hello World in the Serial Monitor. Then I uploaded this sketch, which repeats back anything I type in the serial monitor.
Code:
void setup(){
 Serial.begin(9600); // Init Virtual Serial Port - Machine
}
void loop(){
 if (Serial.available() > 0) {
  char myData = Serial.read();
  Serial.println(myData);
}}
So see if you can get that working to start with.