I am new to electronic. I wanted to power my arduino with old smps that I had for it I connected the green wire(psu on) with the black wire( com ground) and used an hdd for dummy load. After that I connected my arduino with 12v line . It worked for about 1 min after which the smps is not starting.
Can anyone tell me what has happened and why.
Can anyone tell me what has happened and why.