How to make a noise-free infrared obstacle detection
In this project, we selected a proper IR receiving component and designed the circuit in a way to act as stable as possible. Also, you can adjust the sensitivity of the sensor to detect the obstacles located near or far from the sensor.
You can examine the schematic diagram in the figure-1. The famous 555 chip is used to produce a 38KHz square wave. Frequency of the wave can be adjusted by turning the R5 potentiometer. The receiver side uses a TSOP1738 (HS0038) IR receiver module. It typically reacts to the 38KHz IR pulse and activates its output.
More details check https://www.pcbway.com/blog/technology/How_to_make_a_noise_free_infrared_obstacle_detection.html
How to make a noise-free infrared obstacle detection
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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