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.
- 10+: $3.70
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.
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.
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
What is the difference between the IR distance sensor and the ultrasonic distance sensor?
|IR distance sensor||
|What it does||Measure distance through reflected light waves||
Measure distance through reflected sound waves
|How it measures||Triangulation: Angle of a reflected IR beam is measured||Time taken between transmitting and receiving sound waves are recorded|
|Human Relationship||Invisible to the naked eye||Unhearable|
|Object Requirements||Suitable to be used to measure complex objects||Not suitable to measure objects with complex surfaces|
What is Grove?
Grove makes it easier to connect, experiment, and simplify the prototyping process. No jumpers or soldering required. We have developed more than 300 Grove modules, covering a wide range of applications that can fulfill a variety of needs. Not only are these open hardware, but we also have open-source software.
Also check our blog Types of Distance Sensor and how to select one? for more information about distance sensors.
|Dimensions||89mm x140mm x10.5mm|
|Grove - Infrared Reflective Sensor||1|
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