Hi. I am new at this and today I had a problem.
I was trying to use a 555 with my arduino mega. I was connecting my circuit to Arduino to use it's power. I had it connected to a 9V cable. I connected the 5V to the 555 and when I tried to connect the ground I did it wrong and I connected it in the "Vin".
Windows 7 unplugged song alerted me that something was wrong, as it sounded like I had unplugged a device. The only device I was using was arduino.
Since then, I can't upload sketches. When it is uploading it stops "Binary sketch size: 4052 bytes (of a 258048 byte maximum)"
Everything seem OK. The ON led is working as well as the L led when I reset. I put a led in the 13 pin and it flashes too when I reset. I just can't load sketches and I am afraid for this.
Can you help me with this please?
I am using the last IDE, Windows 7 x64.