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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.

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EM4100 125kHz RFID Card

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Digital Tachometer Speed Module Sensor for Arduino UNO
  • Digital Tachometer Speed Module Sensor for Arduino UNO

Digital Tachometer Speed Module Sensor for Arduino UNO

A 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.

BDT 500
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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
1 Item

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