directionRead()

Posted by On 09 / 11 / 2014 0 Comment

Description

Function to get the rotating direction of optical encoders or the moving direction of rotary

Note: this function is available after the “Coding 105” and just works under Pulse/DIR, CW/CCW and A/B Pulse mode.

Syntax


Enc0.directionRead()
Enc1.directionRead()
Enc2.directionRead()
Enc3.directionRead()

Parameters

None

Returns

1：the value of counter is increasing.
-1：the value of counter is decreasing.

Example

#include "Encoder.h"

void setup() {
  Serial.begin(9600);
  Enc0.begin(MODE_AB_PHASE);
}

void loop() {
  Serial.print("count = ");
  Serial.print(Enc0.read()); // read the counter value
  Serial.print(" ");
  Serial.print("dir = ");
  Serial.print(Enc0.directionRead()); // print the rotating direction
  
  delay(100);
}

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