This small digital distance sensor detects objects between 2 cm and 10 cm (0.8″ and 4″) away. With its quick response time, small size, and low current draw, this sensor is a good choice for non-contact object detection.
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- This sensor isn’t behaving as I expect: I’m getting intermittent detection much farther than the maximum range of the sensor and it’s not detecting objects within the advertised detection range. What’s wrong?
- Issues like this can be the result of power supply problems, especially since this sensor draws power in short, large bursts, so make sure your power supply is capable of delivering the necessary current. If you experience this problem, try adding a 10 µF or so capacitor across the sensor’s power and ground near the sensor; this compensates for an inadequate power supply and typically restores normal functionality.