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Smart Electronics F249 4 PIN Infrared Speed Sensor Module for arduino/51/AVR/PIC 3.3V-5V Raspberry Pi

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Price: US $0.60 Sale Price: US $0.48
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45 days Money back Returns accepted if product not as described, buyer pays return shipping; or keep the product & agree refund with seller.
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Widely used in motor speed detection, pulse counting, position limit and so on.

  • Module for use:
  • 1. module slot unobstructed, receiver tube conduction module DO output low, when blocked, DO output high;
  • 2, DO output interface can be directly connected to the microcontroller IO port, whether the sensor with barriers, such as the motor speed can be detected with the motor encoder.
  • 2. DO module can be connected to relays, limit switches and other functional composition, and to be connected with active buzzer module, consisting of alarm.

Module features:

1, the use of imported groove coupler sensor, slot width 5mm.

2, output status indicator lamp output high, output low lights.

3, block, output high; no shelter, output low.

4, the comparator output signal clean, good waveform, driving ability, than 15mA.

5, the working voltage of 3.3V-5V

6, the output format: digital switching output (0 and 1)

7, a fixed bolt holes for easy installation

8, small PCB board size: 3.2cm x 1.4cm

9, using a wide voltage comparator LM393

Product wiring instructions:

1, VCC positive power supply 3.3-5V

2, GND power supply is negative

3, DO TTL switching signal output

4, AO this module does not work

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N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

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Price:  US $0.60 / piece
Sale Price:  US $0.48 / piece