run () motor () with () % speed

Make a Circle – Robot

The example demonstrates how to make the robot go in a circle with different motor speeds.

Script

Output

Robot Motion

The example demonstrates how the robot move forward, backward, left and right using motor direction control.

Forward

Robot Forward

Backward

Robot Backward

Left

Left Robot

Right

Right Robot

Line Follower Robot – Full

The example demonstrates how to make a line follower robot with Quarky.

Logic

Script

Alert: You need to calibrate the IR sensor to get the best line detection by the robot. Also, you need to calibrate the speeds to make the robot follow the line correctly.

Output

Interfacing DC motor with Arduino

interfacing of DC motor with Arduino and it's control.

Motor driver and it’s working

Arduino Uno is a controlling device which is capable to control the things we are connected to it, it is not a power source. motors works on the principle of electromagnetism so draws a lot of load current which can’t be maintained by Arduino, for this we need a motor driver which is integrated circuited (IC) which maintains this load current for the motors.

this is of 16 pin chip among which 2 are enable pins used to control the speed of the motor, 4 for the input pins are 4 for output pins for the motors, remaining are GND and VCC.

Circuit

connection.

Arduino uno Motor driver

D5 IN1

D4 IN2

D6 EN1

GND GND

In this example, we will be controlling the direction of rotation of the motor using the motor driver.

code

From the actuators palette drag connect motor () direction 1 () direction 2() and PWM()
from control palette add forever block

From the actuator palette add run motor () in direction () with speed()

from the control palette Add a wait block

Repeat the above 2 steps and change the direction from forward to backward

Now add when flag clicked event

Script

OUTPUT

Speed control of DC motor

Learn how to control speed of the motor using Arduino and motor driver.

interfacing motor driver with Arduino

Arduino is a controlling device not a power source on the other hand, motors work on the principle of electromagnetism and hence draw a lot of load current which can’t be maintained by Arduino. To overcome this, we need a motor driver which maintains this load current along with the speed and direction control of the motor.

Circuit

connections

connection.

Arduino uno Motor driver

D5 IN1

D4 IN2

D6 EN1

GND GND

Code

Create a variable as speed and set it 0

From actuators drag connect motor () direction 1() direction 2() and PWM()

from controls palette add a forever block

again from controls palette add if-then-else block in the forever block

We will be changing the speed using th up and down arrow. For this goto sensing and check for the key pressed.

from Acturatos add run motor() direction () with speed()

Inset the value of the speed variable as motor speed

Repeat the above steps for the down arrow to reduce the speed.

Add a wait block for a time of 0.25 seconds in forever block outside the if-then-else block.

now from the event palette add when flag clicked event at the start of the script.

run () motor () with () % speed

Description

Example

Make a Circle – Robot

Script

Output

Robot Motion

Forward

Backward

Left

Right

Line Follower Robot – Full

Logic

Script

Output

Interfacing DC motor with Arduino

Motor driver and it’s working

Circuit

code

Script

OUTPUT

Speed control of DC motor

interfacing motor driver with Arduino

Circuit

Code

Script

Output

Company

Community

Products

School Programs

Impact Programs

Learning Resources

Product Documentation

Get in Touch

Follow Us

PictoBlox - Block & Python Coding for Kids

Dabble App - One App. Infinite Control.