We work in groups on a project at school. We had to build an electric scheme with an Arduino to make a small car moving.
We got the parts from our school, except the Arduino (we had to buy it ourselves). We had to use a battery of 11.5 V. We also had electrical resistors to protect the Arduino and the stepper drivers.
The car worked for a while, but then we wanted to change the program and tried to upload new software to the Arduino. Now the Arduino is not recognized by any computer.
We tried several things, like multiple times unplugging the USB cable, hitting the reset button on a specific timed moment (some method found on the internet).
But it still doesn't work. When the Arduino is connected via USB, the 'on' LED on the Arduino is on. After that all we came also to the conclusion that some people made mistakes on building the electric scheme...
- Is it possible that the Arduino is broken, since the battery has 11.5 V?
- If the Arduino isn't broken, can the problem that it's not recognized by the computer be solved?