Review on 10PCS OSOYOO Obstacle Avoidance Sensor Kit with IR Transmitting, Receiving Tube, and Photoelectric Switch for Arduino, Raspberry PI 4, 3 Model B - Ideal for Smart Cars and Robots by Quinton Dawon

As mentioned by other customers, these modules often fail. The short answer to this problem is "Don't connect them to the 5V pins of an Arduino or Raspberry Pi." A more detailed explanation is that one astute reviewer noted that the resistance in the device appears to be smaller than the LEDs. can withstand 5 volts, but 3 volts is enough. My experience has been that I plugged a device into an Arduino Uno and couldn't get it to respond. All he did was stay "on" the whole time. Thinking I might be doing something wrong with the Arduino, I tried the module with a Raspberry Pi and got the same results. After some research I found a hint that the resistor is too small for a 5 volt supply. To test this I connected the new module to the Raspberry Pi's 3V power connector and it worked as described. I ran it for 24 hours with no issues and also tried a few additional modules in the same batch. They all worked as advertised. CONCLUSION: It looks like the LED burned out as soon as I connected it to the Arduino's 5 volt power supply. The lesson to be learned is that the modules are described as "suitable for 3-5V DC power modules" but do not work. t lasts long at 5 volts. That being said, as long as you use 3.3 volt pins, this is an inexpensive way to implement a contactless trigger on your Raspberry Pi.