QRE1113 Line Sensor Breakout - Digital
ID: 201015
zł29.59
Tax included
zł24.06 tax excl.
ROB-09454 - QRE1113 Line Sensor Breakout - Digital
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ROB-09454 - QRE1113 Line Sensor Breakout - Digital
Description:
This version of the QRE1113 breakout board features a digital output, using a capacitor discharge circuit to measure the amount of reflection. This tiny board is perfect for line sensing when only digital I/O is available, and can be used in both 3.3V and 5V systems.
The boards QRE1113 IR reflectance sensor is comprised of two parts - an IR emitting LED and an IR sensitive phototransistor. When you apply power to the VCC and GND pins the IR LED inside the sensor will illuminate. A 100Ω resistor is on-board and placed in series with the LED to limit current. The output of the phototransistor is tied to a 10nF capacitor. The faster that capacitor discharges, the more reflective the surface is.
These sensors are widely used in line following robots. White surfaces reflect more light than black, so, when directed towards a white surface, the capacitor will discharge faster than it would when pointed towards a black surface.
The power input and output pins are brought out to a 3-pin, 0.1" pitch header. The board also has a single mounting hole if you want to screw it onto something.
Dimensions:
- 0.3x0.55"
Features:
- 5VDC operating voltage
- 25mA supply current
- Digital I/O compatible
- No ADC required
- Optimal sensing distance: 0.125" (3mm)
Documents:
201015
Data sheet
- Type of sensor
- QRE
- Output type
- digital
- Number of sensors
- 1
- Power supply voltage
- 5 V
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ROB-09454 - QRE1113 Line Sensor Breakout - Digital