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¶

Encoder Gear Motor-25MM 95RPM hardware.jpg

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.
Encoder Gear Motor-25MM 95RPM test resullt.JPG

Resources¶

Encoder Gear Motor Library