I am currently a first time Arduino user. I decided to get one and start prototyping basic types of circuits.
I have built various basic circuits with the Arduino Uno prototype board and it worked completely fine. I am using the Arduino board to source power to my circuit (5V). However, after building the following circuit, everything stopped working:
I don't get output from any of the Arduino pins and I cannot upload programs to the board. The yellow LED still blinks, and the green power LED remains green and active.
I cannot figure out how I managed to burn the board. The current is around 22.72mA, which is pretty far of the 40mA absolute rating.