SEN0230

  Incremental Photoelectric Rotary Encoder ‐ 400P/R  SKU: SEN0230 Introduction This is an industrial incremental photoelectric rotary encoder with aluminum material, metal shell and stainless steel shaft. It generates AB two-phase orthogonal pulse signal though the rotation of the grating disk and optocoupler. 400 pulses/round for each phase, and 1600 pulses/round for dualphase 4 times output. This rotary encoder supports max 5000 r/min speed. And it can be used for speed, angle, angular velocity and other data measurement. The photoelectric rotary encoder has a NPN open collector output. It could work with Microcontroller with internal pull-up resistors directly. And it is using 750L05 voltage regulator chip, which has a DC4.8V-24V wide range power input, compatible with Arduino, STM32, PLC and other types of microcontrollers. Note: NPN open collector output needs pull-up resistors for the oscilloscope display. Specification      Supply Voltage: 4.8V ~ 24v Encoder Body Size: Φ39× 36.5mm Output Shaft Diameter: Φ6 × 13mm Outside Shaft Platform: Φ20 × 4.85 mm Fixing Holes Screws: M3 Board Overview Incremental Photoelectric Rotary Encoder - 400P/R Num Label Description White VCC Power + Black GND Power - Red A Pulse A (Need pull-up Resistor) Green B Pulse B (Need pull-up Resistor)  Tutorial Direction & Interrupt count Requirements  Hardware DFRduino UNO (or similar) x 1 Incremental Photoelectric Rotary Encoder 2x 1K Resistor M-M/F-M/F-F Jumper wires  Software Arduino IDE, Click to Download Arduino IDE from Arduino® https://www.arduino.cc/en/Main/Software%7C Connection Diagram Arduino Connection Sample Code /*************************************************** Two phase quadrature encoder(Incremental) * **************************************************** To determine motor with encode （CW OR CCW） @author Dong @version @date V1.0 2016-5-26 All above must be included in any redistribution * ****************************************************/ #define A_PHASE 2 #define B_PHASE 3 unsigned int flag_A = 0; //Assign a value to the token bit unsigned int flag_B = 0; //Assign a value to the token bit /** * */ void setup() { pinMode(A_PHASE, INPUT); pinMode(B_PHASE, INPUT); Serial.begin(9600); //Serial Port Baudrate: 9600 attachInterrupt(digitalPinToInterrupt( A_PHASE), interrupt, RISING); //Inte rrupt trigger mode: RISING } void loop() { Serial.print("CCW: "); Serial.println(flag_A); Serial.print("CW: "); Serial.println(flag_B); delay(1000);// Direction judgement } void interrupt()// Interrupt function { char i; i = digitalRead( B_PHASE); if (i == 1) flag_A += 1; else flag_B += 1; } OUTPUT Expected Results Use the interruption to detect the rotation direction and count cylinder number https://www.dfrobot.com/wiki/index.php/Incremental_Photoelectric_Rotary_Encoder_-_400P/R_SKU:_SEN0230 7-7-17