Cheap IR sensor resources

Other Hardware Sensors
1

Hello!

I am looking for a cheap resource for IR sensors. I am making an Arduino VacBot, and I am on a limited budget. From what I have found, they all cost somewhere around $25.00. If someone knows where to purchase cheap IR sensors in the United States or Canada, that would be great!

Also, is it cheaper to make an IR sensor yourself? I have found a resource on how to make an IR sensor, but it has no estimates.

Thanks!

B_O_T

P.S. this is Ben_OT in new account for those who previously responded to my posts. :smiley:

2

It would help if you post a link to something you have already found.

What are these sensors supposed to sense?

3

Hey! Thanks for replying.

I will provide a link below.

The sensor detects distance. I am going to use one on a Vacuum robot I am attempting to make.
More specifically, I am using the sensor to gauge the edge of a floor, where the robot is supposed to turn around, to avoid falling off the edge, and destroying itself. One could call such a sensor a "cliff detector."

Thanks,

B_O_T

4

Actually, forget the part about cliff detection. I think I will need an Ultrasonic sensor for that. I'll use the IR sensor for distance detection to allow the robot to see where it is in relation to solid objects.

Regards,

B_O_T

5

Pololu has an excellent collection of IR sensors.

6

eBay is full of those type of sensors, here's one:

https://www.ebay.com.au/itm/For-Arduino-Smart-Car-Robot-IR-Infrared-Obstacle-Avoidance-Sensor-Module-/191887630709?hash=item2cad64e175:g:B5UAAOSwo6lWPH0x

I doubt you can make it yourself for less.

7

Hi!

Thanks for helping me. I appreciate it!

Regards,

B_O_T