Description

If you want to build a project where the machine can Sense the speed of the conveyer belt as well as the direction of movement, a rotary encoder is a must-have component. Keeping this in mind, Robu.in introducing the brand new orange 2500?PPR 3-Phase?Incremental?Optical Rotary Encoder?at a competitive price.
A rotary encoder is a type of position sensor which is used for determining the angular position of a rotating shaft. It generates an electrical signal, either analog or digital, according to the rotational movement.
Orange 2500 PPR Incremental Optical Rotary Encoder is a hi-resolution optical encoder with quadrature outputs for increment counting. It will give 10000 transitions per rotation between outputs A and B. whereas the Z phase will produce one transition per rotation. A quadrature decoder is required to convert the pulses to an up count. The Encoder is built to Industrial grade.

The Encoder comes with a Standard 2-meter long cable which can be extended with extra cable if needed.
Consider Adding Pull up resistor to All A-B-Z phases of the encoder output to avoid the effect of interference in output and get the precise logical output value from the encoder. Also adding a pull-up resistor to all phase output lines protects the open collector output-triode from damage due to direct Vcc supply short circuit.
Note: A sample tutorial code has been given in the Description.

Power and Input Terminal Assignments:

Terminal Name
Wire Color
Description

Phase A
White
Quadrature encoded output A

Phase B
Green
Quadrature encoded output B

Phase Z
Yellow
Quadrature encoded output Z

VCC
Red
VCC should be connected to +ve 5V of supply

GND
Black
The ground should be connected to negative the supply

Shield
Golden
The shield should be connected to GND

Shielding is important. At a minimum, the cable should be protected either by a foil jacket with a drain wire or by a braided-wire shield that is grounded. For very sensitive applications or high-EMI environments, foil jacketed wires in combination with an overall braided-wire shield around the cable should be used to avoid interference and precise encoder output.
To Explore More Rotary Encoders,?Click here

Features :

High cost-efficient advantages.
Incremental rotary encoder internal adopts ASIC devices
High reliability, long life
Anti-jamming performance
Small size, lightweight, compact structure
Easy installation
Stainless steel shaft, High resolution, High quality, line interface with waterproof protection

Useful Link:

Tutorial Code:

//these pins can not be changed 2/3 are special pins
int encoderPin1 = 2;
int encoderPin2 = 3;

volatile int lastEncoded = 0;
volatile long encoderValue = 0;

long lastencoderValue = 0;

int lastMSB = 0;
int lastLSB = 0;

void setup() {
Serial.begin (9600);

pinMode(encoderPin1, INPUT);
pinMode(encoderPin2, INPUT);

digitalWrite(encoderPin1, HIGH); //turn pullup resistor on
digitalWrite(encoderPin2, HIGH); //turn pullup resistor on

//call updateEncoder() when any high/low changed seen
//on interrupt 0 (pin 2), or interrupt 1 (pin 3)
attachInterrupt(0, updateEncoder, CHANGE);
attachInterrupt(1, updateEncoder, CHANGE);

}

void loop(){
//Do stuff here

Serial.println(encoderValue);
delay(1000); //just here to slow down the output, and show it will work even during a delay
}

void updateEncoder(){
int MSB = digitalRead(encoderPin1); //MSB = most significant bit
int LSB = digitalRead(encoderPin2); //LSB = least significant bit

int encoded = (MSB << 1) |LSB; //converting the 2 pin value to single number int sum = (lastEncoded << 2) | encoded; //adding it to the previous encoded value if(sum == 0b1101 || sum == 0b0100 || sum == 0b0010 || sum == 0b1011) encoderValue ++; if(sum == 0b1110 || sum == 0b0111 || sum == 0b0001 || sum == 0b1000) encoderValue --; lastEncoded = encoded; //store this value for next time } Package Includes : 1 x Orange 2500 PPR ABZ 3-Phase Incremental Optical Rotary Encoder 4 x 4.7K? Resistors for?pull-ups 1 x Mounting Screw Set