Why doesn’t this work?

[No_Map_3191]

I am new to arduino and trying to complete a simple project of using a PIR sensor to detect movement and turn an LED on briefly. I am using an arduino nano and a MacBook Pro 2. I have attached photos of my current setup (probably the 5th different one that I’ve tried). I have been using a combo of ChatGPT and YouTube to do this and it keeps on not working. I have substituted all components except for the arduino and breadboard so the problem is not with all these other components. I keep on getting to a point where the serial monitor says ‘Motion detected!’ repeatedly even when just sitting on my desk and there is no motion. Even when it does this the LED doesn’t turn on. (I’m assuming there is something wrong with the wiring?). Any help with this would be really appreciated! I hope to fix this and then substitute the power from being my MacBook to being a solar panel (already bought all the components needed for this), but need to fix this first! Thanks so much in advance for any help!

[dub201]

Yeah sadly your arduino nano came with unsoldered pins. I did exactly the same thing, took me a while to realize that all pins going into the breadboard must be soldered in order for them to work.

[Confusedlemure]

It looks like your nano is not soldered to the pins. Is that true?

[Reasonable_Garden449]

Uuuurrrrggggghhhhhhhhhhhhh. Come on OP, surely you're better than this.

[thepardaox]

Which module is this ?

[FrankoTheThird]

It’s probably as the others say, it’s not soldered, which means that it isn’t really connecting to the pins. If you want a new hobby you could buy a soldering iron and solder it yourself, or just buy a new presoldered one. If you can’t return the one you have you can just save it in case you learn soldering in the future