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Reference: 984

Heat Shrink Tube

Heat Shrink Tubing 2:1, Eventronic Electrical Wire Cable Wrap Assortment Electric Insulation Heat Shrink Tube Kit (1 pcs)Please Choose Size Below

Price BDT 2
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Jumper Wire Single Medium Quick view

Reference: 1354

Jumper Wire Single Medium

Length: 8.5 inches (Medium) Material: Copper Plated.EachPin Spacing: 2.54mm.Color: Colorfulcompatible with 2.54mm mil spacing pin headers.It can be used for PCB project, pc motherboard, etc.Allow you to plug and unplug easily for prototyping.Package Contents: 1 x Jumper Wire You will get only one pcs.

Price BDT 3
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Jumper wire 40 Pcs Quick view

Reference: 31

Jumper Wire 40 Pcs Set

3 Types Available 1. Male to Male  2. Male to Female 3. Female-Female

Price BDT 90
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470 Ohm 1/4w - Pack of 5 Quick view

Reference: 245

Kiloohm (KΩ) 1/4w Resistors - Pack of 5

Choose your desire Resistor value from below: 

Price BDT 5
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Push Button Switch Quick view

Reference: 761

Push Button Switch

Push Button Switch

Price BDT 5
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Buzzer Quick view

Reference: 766

Ohm (Ω) 1/4w Resistors - Pack of 5

Choose your desire Resistor value from below: 

Price BDT 5
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5 mm Green LED (Pack of 5) Quick view

Reference: 768

5 mm Red LED (Pack of 5)

5 mm Red LED (Pack of 5)

Price BDT 5
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Buzzer Quick view

Reference: 758

BC547 NPN Transistor

BC547 NPN Transistor

Price BDT 2
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On sale! Arduino Uno R3 (Made in Italy) Quick view

Reference: 94

Arduino Uno R3

Arduino UNO in Bangladesh The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller.

Price BDT 428
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Buzzer Quick view

Reference: 755

5 mm Green LED (Pack of 5)

5 mm Green LED (Pack of 5)

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All best sellers

    Digital Tachometer Speed Module Sensor for Arduino UNO

    427

    IR Infrared Slotted Optical Speed Measuring Sensor Smart Car Wheel Counting Speed Sensor Detection Optocoupler For Motor Test

    BDT 330
    rating Read the review
    Average rating: 5/5 - Number of reviews: 1
    Quantity
    In-Stock

    • Store Pickup Available! Store Pickup Available!
    • Free Ship Over 5000 BDT Free Ship Over 5000 BDT
    • Quality Product Quality Product
    • No Warranty No Warranty
    • No Replacement No Replacement
    Description

    Description:

    Tachometer is a simple module that allows you to test the speed of the motor.Widely used for motor speed detection, Pulse count, position limit, and so on.

    Features

    Puzzle interface
    infrared photoelectric sensor
    Working voltage 3.3v-5v
    Output: digital switch output ( 0 and 1 )

    Code:

    #include <TimerOne.h>
    unsigned int counter=0;
    void blink()
    {
    counter++;

    void timerIsr()

    Timer1.detachInterrupt(); //disable the timer1
    Serial.print("The speed of the motor: "); 
    Serial.print(counter,DEC); 
    Serial.println("round/s"); 
    counter=0; 
    Timer1.attachInterrupt( timerIsr ); //enable the timer1
    }
    void setup() 
    {
    Serial.begin(9600);
    Timer1.initialize(1000000); // set a timer of length 1sec
    attachInterrupt(0, blink, RISING); //INT0
    Timer1.attachInterrupt( timerIsr ); // attach the service routine here

    void loop()
    {
    ; //do nothing
    }
    Tachometer modules can be connected to the relay to form features such as Limit switches, you can also connect to the active buzzer module, consisting of alarm.

    Package Included:

    1 X Tachometer Speed Module
    Product Details
    427
    22 Items
    Encoder
    rating
    19/08/2020
    Marzan Alam
    Good
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