Bescor mp 101 spin color for cable remote

LCD data pins D4 to D7 are connected to digital pins 5, 4, 3 and 2 of arduino while control pins Rs and En are connected to 12 and 11.The collector output of transistor is connected to digital pin 7 or arduino Internal photo transistor is pulled up by resistor R4. The internal IR LED of MOC7811 is given forward bias using 5V supply form arduino board through current limiting resistor R1.This pin is given to base input of TIP122 through current limiting resistor R2 and DC motor is connected to collector of TIP122 The analog output pin 9 of arduino drives RPM DC motor through TIP122.Lets start with circuit diagram first, followed by its descriptions and operation.ДЄs shown in figure, the circuit is built using arduino UNO development board, 16x4 LCD, NPN Darlington transistor TIP122 and opto interrupt sensor MOC7811. When motor completes 1 revolution, the sensor generates 1 pulse and such pulses are calculated by arduino to calculate RPM. To measure RPM, opto-interrupt sensor MOC7811 is used. Arduino can generate PWM on its analog output pin and when it is applied to DC motor, its speed varies. It is very easy to vary speed of DC motor using arduino. These parameters are displayed on 16x4 LCD. It uses arduino UNO board to generate PWM and measure/calculate above 3 parameters. It applies PWM to DC motor to vary its speed from min to max and max to min continuously and also measures following parameters The given project demonstrates above example. This table is used to prepare duty cycle->RPM graph or applied voltage->RPM graph of motor.

Finely, after noting down all the values, the observation table is prepared for pulse width (duty cycle), applied voltage and motor speed in RPM. Along with this, the applied voltage to motor is also measured to see the motor speed at different applied voltage. While applying PWM the actual RPM of DC motor is also measured and note down to see how motor speed (RPM) varies as PWM width varies. In DC motor speed testing, the PWM is applied to motor and its duty cycle is varied from min to max.

Bescor mp 101 spin color for cable remote