10pcs/Pack DIYmall Arduino Smart Car Robot IR Infrared Obstacle Avoidance Sensor - IR Transmitting and Receiving Tube with Photoelectric Switch Review

They work well with Arduino unio. They are easy to connect and do exactly what they are supposed to do. Ideal for building robots in the workshop!

The IR LED and receiver are soldered to the board in such a way that they are angled, making them difficult to use. The header on the back is soldered at an angle, and the edges of the board need to be sanded or they'll stick to everything.

says it can go up to 30cm but I couldn't get it past 8cm with a completely white object in front of it. You can only turn the potentiometer halfway before it sticks, signaling that it's detected something, even if there's nothing in front of the sensors.

Seems to work well, but the performance is usually high and if there is an obstacle, the output will shut down. The Arduino has an input pull-up function, but no input pull-up, so a resistor to ground had to be used to change state. Not a big deal, but I think the output would be better if it were grounded when triggered.

After many, many years and many changes, I've recently returned to electronics. What has changed for the better is all the new things like SBCs and all the sensors. A few more things to try! I agree with the other reviewer, it's great that they are so easy to use, even for a high achiever like me. Work exactly as they should and it's an amazing price for 10. Highly recommend, get yours today.

It seems to work fine, but the power is usually high, and if there is an obstacle, the output will turn off. The Arduino has an input pull-up function, but no input pull-up, so a resistor to ground had to be used to change state. Not a big deal, but I think the output would be better if it were grounded when triggered.

I recently got back into electronics many, many years later and a lot has changed. What has changed for the better is all the new things like SBCs and all the sensors. A few more things to try! I agree with the other reviewer, it's great that they are so easy to use, even for a high achiever like me. Work exactly as they should and it's an amazing price for 10. Highly recommend, get yours today.

Can't say I had high hopes for the DIYmall Infrared Obstacle Avoidance Sensor 10pcs/pack. low price. After all, how are you going to have a PCB, a connector, an IC, an LED, a photo sensor, and some other SMT components and make money from it for about a dollar a unit? Well, I shouldn't have worried. It's cool that the packet represents its output as a digital level because you know the reflected value will be returned to the comparator as an analog value. The digital state makes programming…