QTR-1A reflectance sensor - 2pcs. - Pololu 2458
Bestseller
- Product Code:
- 47398357
35 GEL
Properties
Other features
- Brand
- Pololu
Description
Specification:
Diagram of the system
- Supply voltage: 5.0 V
- Current consumption: 20 mA
- Output: analog voltage
- The range of the output signal: from 0 to supply voltage of 5 V
- The optimal distance of the sensor's operation: 3 mm
- The maximum distance of the sensor's operation: 6 mm
- Weight: 0.25 g
Details inthe documentation.
The set includes two QTR1-A sensor with goldpin straps: straight and corner.
Method of application
- Connecting the sensor's output to the analog-to-digital converter (for example, integrated in the microcontroller or analog input in Arduino).
- Connection usingthe comparatordirectly to the I/O pins.
- Using the built-in in some microcontrollers, internal comparator.
The product is compatible with Arduino
The manufacturer has prepared a library formicrocontrollers from the AVR familyforArduino users which facilitates the usage of the sensor.
The schemeof connecting the QTR-1A sensor on the board. Resistor of 150 Ωlimits the current flowing through the LED that emits the infrared. The 47kΩ resistor is used to pull-up the collector output to the VIN supply voltage.
Useful links- Manufacturer's website - Pololu #2458
- Documentation of the sensor
- The Arduino library
- Library of AVR
