I was connecting L293d Motor Driver IC with an Arduino Due Board. May be due to wrong connections, but when I made the grounds common, the Arduino LED goes off and Atmel IC heats up. When I reconnect my Due board with my PC anytime, the LED turns on and slowly dims to off and Atmel IC fries up.
I wanted to repair it. What should I do?
I have checked the input voltage of the AMS1117 3.3V regular IC as 3.8 V, while the output is 2.2 V. If I externally give 5 volt at input again, the input voltages drops. The regulator is loading.
I thought of replacing the regular IC? Will that work?
Also I externally powered the Board with 3.3V by its pin labeled "3.3V" . The LEDs glow on and did not go off. But the Atmel Microcontroller IC becomes very hot.
What should I do?