Arduino UNO led no longer blinking

Development Tools IDE 1.x
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Hello, I started using Arduino 2 weeks ago following tutorials on YouTube. I recently put my kit away and used it again today to follow a lesson on powering a small fan using a DC motor. I was using
Arduino Uno, L293D motor controller, motor controller and external power with 9V1A adapter plugged in a wall outlet.

I wrote my quote, at first it didn't upload and I saw the error message: "no upload port found" and realized I hadn't selected the board and com port.

I uploaded and nothing happened. Noticed the LED was not blinking.

Unplugged everything, tried a simple analogWrite on an LED and nothing works.

The program recognizes the board, it uploads, but it's like it's not reading the program.

Can someone help? Is this a hardware or software issue?

Thank you!

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Welcome to the forum

Try uploading the Blink example from the IDE with nothing connected to the Uno

What happens ?

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Huzzah! it blinks. so, it reacts to uploads.

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Little ashamed here, but let that be a lesson for others: If you put Arduino aside for a few weeks when you've just started. You may mix up analog and digital outputs and consequently write basic code that makes it look like your board is not working properly. @UKHeliBob thank you.
Looks good now :face_in_clouds:

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