IR Proximity Sensor / Obstacle Detector Circuit on Breadboard | LM358 amplifier projects
A tutorial on how to make an infrared (IR) proximity sensor circuit along with detailed explanation of how the circuit works. Sensitivity or detection range can be controlled by adjusting the potentiometer.
This circuit can also function as an infrared receiver and the obstacle detector.
Troubleshooting guide:
* Double-check all connections referring to the diagram.
* Check if the LEDs are working properly. (Digital cameras can detect infrared light, so you can check if the InfraRed LED is working using a digital camera)
* The IR photodiode used in this video is white and the IR LED is black. But it can also be the reverse in your case. You can figure out which one is driven/photo diode by connecting both diode, photo diode pair separately to the power supply (through a 220 resistor) and see which one turns on the help of a digital camera.
* At one extreme position of the potentiometer knob, the LED should be off and at the other extreme position, the LED should be on. Now you can start turning the knob of the potentiometer form the extreme position where the LED is on, until the LED comes right off. Now the IR proximity sensor should work properly.
IR Proximity Sensor / Obstacle Detector Circuit on Breadboard | LM358 amplifier projects
A tutorial on how to make an infrared (IR) proximity sensor circuit along with detailed explanation of how the circuit works. Sensitivity or detection range can be controlled by adjusting the potentiometer.
This circuit can also function as an infrared receiver and the obstacle detector.
Troubleshooting guide:
* Double-check all connections referring to the diagram.
* Check if the LEDs are working properly. (Digital cameras can detect infrared light, so you can check if the InfraRed LED is working using a digital camera)
* The IR photodiode used in this video is white and the IR LED is black. But it can also be the reverse in your case. You can figure out which one is driven/photo diode by connecting both diode, photo diode pair separately to the power supply (through a 220 resistor) and see which one turns on the help of a digital camera.
* At one extreme position of the potentiometer knob, the LED should be off and at the other extreme position, the LED should be on. Now you can start turning the knob of the potentiometer form the extreme position where the LED is on, until the LED comes right off. Now the IR proximity sensor should work properly.
No comments:
Post a Comment