My arduino is not working. It just glows the "on" LED and the "L"(pin 13)LED all time.
I just tell what happened before this problem step by step:
- I uploaded blink example sketch into my arduino
- I used a relay board to have the output of the PIN 13
- Connected 5V input of the relay to the 5V power pin in arduino. And connected the GND from relay to arduino GND
- I used a wall adapter to power my arduino, which voltage is adjustable( I set it to 12v)
I left it on for 10-15 minutes blinking the light, after some time it was hot.
then I left it cool down.
THEN I JUST PLUGGED MY 9V BATTERY TO MY ARDUINO VIN PIN. AND THIS PROPLEM CAME THIS TIME
"It just glows the "on" LED and the "L"(pin 13)LED all time".
even i cannot upload a sketch also.
PLEASE HELP ME TO MAKE THIS ARDUINO TO WORK!
i used arduino uno R3
i am in india (the country for how is the power supply?)
adapter bought in singapore