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Sparkfun ROB-09454 Sensor module 1 pc(s) Compatible with (development kits): Arduino
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Total (€ 5.87 / piece)
€ 5.87
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Technical specifications
- Product type
Sensor module
- Compatible with
Arduino
Documents & Downloads
User & Safety Instructions
User & Safety Instructions 2227585 Sparkfun ROB-09454 Sensor module 1 pc(s) Compatible with (development kits): Arduino
Description
This version of the QRE1113 breakout board has a digital output that uses a capacitor discharge circuit to measure the reflectivity. This tiny board is perfect for line sampling when only digital I/OS is available and can be used in both 3.3V and 5V systems.
The QRE1113 IR reflection sensor of the board consists of two parts - an IR emitting LED and an IR-sensitive photo transistor. When you supply power to the VCC and GND pins, the IR LED inside the sensor lights up. A 100? Resistor is integrated and connected in series with the LED to limit the current. The output of the photo transistor is connected to a 10nF capacitor. The faster the capacitor discharges, the more reflective the surface is.
These sensors are often used in line with robots. White surfaces reflect more light than black, so when directed toward a white surface, the capacitor discharges more quickly than when directed toward a black surface.
The current input and output pins are led through to a 3-pin, 0.1" pitch pin strip. The board also has a single mounting hole if you want to screw it on a bit.
This text is machine translated.
The QRE1113 IR reflection sensor of the board consists of two parts - an IR emitting LED and an IR-sensitive photo transistor. When you supply power to the VCC and GND pins, the IR LED inside the sensor lights up. A 100? Resistor is integrated and connected in series with the LED to limit the current. The output of the photo transistor is connected to a 10nF capacitor. The faster the capacitor discharges, the more reflective the surface is.
These sensors are often used in line with robots. White surfaces reflect more light than black, so when directed toward a white surface, the capacitor discharges more quickly than when directed toward a black surface.
The current input and output pins are led through to a 3-pin, 0.1" pitch pin strip. The board also has a single mounting hole if you want to screw it on a bit.
This text is machine translated.