PRODUCT DETAILS
Description
Grove - Infrared Reflective Sensor v1.2 can be used for the detection of proximity and color of objects. The reflective photosensor - RPR-220 used in this module consists of an infrared light emitting diode and a high –sensitivity phototransistor. Light-colored objects directly in front of the sensor will reflect more infrared light as well as generate more current in the phototransistor than an object with dark-colored surfaces, this can tell from a built-in indicator LED which will turn red with sufficient flow of current. Also, the intensity of the reflective light increases as the object getting closer. You can adjust the potential-meter on the back of the board if you want to detect a specific object (eg. Blackline) at a certain distance.
Application
This sensor is widely used in applications such as:
- Line-following robots
- Rotary speed detection
- Auto-data logging on utility meters or other situations where color or distance contrast is sharp.
Feature
- Panel-mounting Grove interface
- Digital output: 0 or VCC
- Built-in indicator LED
- Threshold adjustable via potentiometer
- Power supply: 3.5 – 5.5V DC
- Reflective Photosensor: RPR-220
- Effective working distance: 4-15mm
- Minimum detectable width for monochrome lines: 10mm
- Connector: 4 pin Buckled Grove interface
- Dimension: 20mm*20mm
What is the difference between the IR distance sensor and the ultrasonic distance sensor?
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IR distance sensor
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Ultrasonic Sensor
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What it does
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Measure distance through reflected light waves
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Measure distance through reflected sound waves
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How it measures
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Triangulation: Angle of a reflected IR beam is measured
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Time taken between transmitting and receiving sound waves are recorded
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Human Relationship
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Invisible to the naked eye
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Unhearable
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Object Requirements
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Suitable to be used to measure complex objects
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Not suitable to measure objects with complex surfaces
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Technical details
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Dimensions
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89mm x140mm x10.5mm
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Weight
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G.W 8g
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Battery
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Exclude
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Part List
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Grove - Infrared Reflective Sensor
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1
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Grove Cable
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1
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Links
