2349

2349 Datasheet

PRODUCT ID 2349

Part	Datasheet
2349	2349 (pdf)

PDF Datasheet Preview
Reflective IR Sensor with 470 and 10K Resistors PRODUCT ID 2349 • Description This Reflective IR Sensor is a simple plastic casing with two elements - an IR LED and an IR phototransistor. You can control the IR LED and turn it on to bounce IR off objects to determine their reflectivity. White & light colored stuff will bounce the light, so you can detect it. Black & dark colored stuff will absorb the IR light so that it isn't detected. Likewise, if something isn't in the way of the sensor, it won't trigger either. These sensors are handy when you want to detect if something has passed by the sensor, or a very simple hand-detector. Also sometimes these are used as rotary encoder, if the encoder wheel has black and white stripes, the photo sensor is fast enough to tell you the RPM. Comes with a 470 ohm resistor for biasing the IR LED and a 10K resistor which you can use as a pull-up resistor for the phototransistor. The sensor is breadboard friendly and easy to solder to. This works best when detecting a light-colored object approximately 5mm away - 2mm to 10mm worked fairly well but your results may vary with the LED brightness, object shininess, etc. • Technical Details o 15mm x 18mm x 5mm / x o Weight 1g This optoreflector tutorial might be handy for understanding how these sensors work Wiring diagram for example, pin 13 is the LED control pin, pin 9 is the input from the sensor Engineered in NYC Adafruit

PDF Datasheet Preview

Reflective IR Sensor with 470 and 10K Resistors

PRODUCT ID 2349
• Description

This Reflective IR Sensor is a simple plastic casing with two elements - an IR LED and an IR phototransistor. You can control the IR LED and turn it on to bounce IR off objects to determine their reflectivity. White & light colored stuff will bounce the light, so you can detect it. Black & dark colored stuff will absorb the IR light so that it isn't detected. Likewise, if something isn't in the way of the sensor, it won't trigger either.

These sensors are handy when you want to detect if something has passed by the sensor, or a very simple hand-detector. Also sometimes these are used as rotary encoder, if the encoder wheel has black and white stripes, the photo sensor is fast enough to tell you the RPM. Comes with a 470 ohm resistor for biasing the IR LED and a 10K resistor which you can use as a pull-up resistor for the phototransistor. The sensor is breadboard friendly and easy to solder to. This works best when detecting a light-colored object approximately 5mm away - 2mm to 10mm worked fairly well but your results may vary with the LED brightness, object shininess, etc.
• Technical Details
o 15mm x 18mm x 5mm / x o Weight 1g This optoreflector tutorial might be handy for understanding how these sensors work Wiring diagram for example, pin 13 is the LED control pin, pin 9 is the input from the sensor

Engineered in NYC Adafruit

More datasheets: 17-300400 | 17-300380 | 17-300390 | SMP2-GC | 37765 | 37764 | S5U13781P00C100 | AO4498EL | 447 | CY7C1393JV18-300BZXC

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived 2349 Datasheet file may be downloaded here without warranties.

2349

2349 Datasheet

Datasheet ID: 2349 508892