Projects Class Prototype

Hi everyone,

I’m trying to figure out what kind of infrared sensor I would use for my projects prototype.

Currently we’re trying to integrate an IR sensor with speakers and an LED. When it detects a motion, it would signal the Arduino to give off a beeping sound and create a blinking LED.

I’ve been looking at different types of IR sensors but I’m not sure which type to use.

Sorry if this is confusing. First time posting here.


How about a basic PIR?

I recently helped someone with that sensor. The bottom line is that it does not work very well without modifications.

For a buck more, go with this one...