Encoder Gear Motor-25MM 95RPM

Description

This is a gear motor that has an encoder to help users adjust the speed. The gear motor has a large torque, low loudness and easy to use. Besides, the encoder on this module has two outputs: output_A and output_B, to monitor the motor speed and direction of rotation, so that you can monitor the speed and then to adjust it in a closed-loop control.
The encoder output 2 signals with 90 degree phase difference. There will be 334 pulses on each of the signal for a round of the motor, with the rising & falling edge, you can get 334x2x2=1336 signals for a round of the motor, with a interval of 360/1336=0.2694 degree.
Model:AM2595EC

Specification

• Working Voltage for Motor: 6~24 VDC
• Rated Voltage for Motor: 12 VDC
• Voltage for Encoder: 5 VDC
• Motor Speed: 95 rpm@12V
• Torque: 1.1 kg.cm
• Motor Length: 65 mm
• Motor diameter: 25 mm
• Current: 250 mA
• Motor Power: 1.25W
• Weight: 86 g

Application Ideas

• High precision non-contact temperature measurements
• Thermal Comfort sensor for Mobile AirConditioning control system
• Temperature sensing element for residential,commercial and industrial building airconditioning
• Windshield defogging
• Automotive blind angle detection
• Industrial temperature control of moving parts
• Temperature control in printers and copiers
• Home appliances with temperature control
• Healthcare
• Livestock monitoring
• Movement detection
• Multiple zone temperature control – up to 127sensors can be read via common 2 wires
• Thermal relay / alert
• Body temperature measurement

Usage

Hardware Installation

Demo c0de

1.Download the library File:Encoder Gear Motor Library

2.Unzip it into the libraries file of Arduino IDE by the path: ..\arduino-1.0\libraries.

3.Open the code directly by the path:File -> Examples ->MsTimer2 ->Encoder_Gear_Motor.

#include <MsTimer2.h> 
#define ENCODER_A_PIN 2
long position;
long speed=0;
void setup(){
  MsTimer2::set(1000, flash);       
  MsTimer2::start();   
  pinMode(ENCODER_A_PIN, INPUT);
  attachInterrupt(0, read_quadrature, CHANGE);
  Serial.begin(9600);
}

void loop(){
   Serial.print("speed: ");
   Serial.print(speed/334, DEC);
   Serial.println("rmp");
   delay(1000);
}

void read_quadrature(){  
 
  if (digitalRead(ENCODER_A_PIN) == LOW){   
      position++;
  }
}
void flash()                      
{                        
     speed=position;
     position=0;     
}

4.Open the monitor of Arduino IDE, you can see the speed of the motor.

Resources

• Encoder Gear Motor Library