Wanna get your advice regarding powering up Arduino Uno using AC/DC Adapter to the barrel jack.
The first adapter I use couldn't work and the shop which I bought it from said the adapter was short circuit-ed.
Out of goodwill, she replace it for free and I tested it out again. The first few tries it worked perfectly fine but stopped working (suspected short-circuited again).
The adapter output is DV9V - 2A.
The circuit consists of 2 ultrasonic sensor and 1 buzzer.
I am quite sure the Arduino circuit does not draw more than 2A of current.
Any idea what's the issue? Thanks!
I've uploaded a photo of the schematic done using Tinkercad. I am using a different breadboard thus the configuration as shown.