Week 8 # - Journal

Ideation

Tell us about your assignment's idea for this week. Why do you care about this idea? What inspired you? (Please include images or links to sources of inspiration)

the idea of my project is:

controlling on two actions (Buzzer and servo motor ) with Bluetooth module via a Graphical User Interface (GUI) (Arduino Bluetooth control)

the idea is when you press the first button the buzzer will work and make sound till you press the second button to stop it.

when you press the third button servo motor will rotate, Each press will increase the angle 10 degree until the angle =180 degree

when you press the fourth button servo motor will rotate in the opposite direction until the angle =zero.

Tool Chain

Which software/machines/materials did you use in the assignment? Why?

For this assignment i used:

1-Arduino uno

2-Breadbboard

3-Jumpers

4- Buzzer

5- 2 Resistors (560 ohm, 1k ohm)

6-Servo motor

7- Bluetooth module (Hc-05)

8-Arduino software

9-Fritzing for wiring

10- Arduino Bluetooth control application

Arduino Bluetooth control

Arduino software

Servo motor

Bluetooth module Hc-05

Design/Preparation Process

Explain the design and/or preparation process of your assignment. How did you use the tool or software to design and/or prepare your assignment before fabrication/implementation?

the idea is when you press the first button the buzzer will work and make sound till you press the second button to stop it.

when you press the third button servo motor will rotate, Each press will increase the angle 10 degree until the angle =180 degree

when you press the fourth button servo motor will rotate in the opposite direction until the angle =zero.

wiring on Fritzing

Firstly, connected the Buzzer to the Breadboard ( the negative pin to the gnd and the positive pin to pin 8.
connecting the Bluetooth module, the negative pin to the gnd, vcc to the 5v, TX to the RX in Arduino, then we need to make voltage divider before connecting the RX pin to the Arduino so i put 2 resistors as shown in Figure.
connecting the servo motor with Arduino (vcc with 5v, gnd with gnd pin and the last pin to pin9)

Development/Implementation Process

Firstly, connected the Buzzer to the Breadboard ( the negative pin to the gnd and the positive pin to pin 8.
connecting the Bluetooth module, the negative pin to the gnd, vcc to the 5v, TX to the RX in Arduino, then we need to make voltage divider before connecting the RX pin to the Arduino so i put 2 resistors as shown in Figure.
Then, I try to write the code for this circuit and make sure it works well.
connecting the servo motor with Arduino (vcc with 5v, gnd with gnd pin and the last pin to pin9)
writing the code for this circuit and make sure it works succesfully.

char data= '0' ;

int angle = 0;

int inc = 10;

#include <Servo.h>

Servo motor ;

void setup() {

Serial.begin(9600);

pinMode(8, OUTPUT);

pinMode(9, OUTPUT);

motor.attach(9);

}

void loop() {

while (Serial.available()==0);

data= Serial.read();

if (data == '1')

{

digitalWrite(8, HIGH);

}

if (data == '2')

{

digitalWrite(8, LOW);

}

if (data== '3')

{

angle += inc;

}

else if (data== '4')

{

angle -= inc;

}

if (angle <= 0 ) angle = 0;

if (angle >= 180) angle = 180;

motor.write(angle);

}

WhatsApp Video 2021-09-13 at 3.05.08 PM.mp4

WhatsApp Video 2021-09-14 at 2.40.57 PM.mp4

Community of Learning

Did you ask for feedback? What are the ideas that others have contributed or suggested? What was someone else’s idea that you built upon? How did you help your peers? How did your peers help you?

In the offline session we're divided into groups, I worked with Salma and Ahmad to make a Mini robotic arm!

3 servos motor the first in the base to rotate it, then the second in the middle, the last on in the arm.

#include<Servo.h>

Servo motor, motor2, motor3;

int angle = 0;

int angle2 = 0;

int angle3 = 0;

int inc = 10;

char serial = '0';

void setup() {

pinMode(9, OUTPUT);

pinMode(10, OUTPUT);

pinMode(11, OUTPUT);

motor.attach(9);

motor2.attach(10);

motor3.attach(11);

Serial.begin(9600);

}

void loop() {

while (Serial.available() == 0);

serial = Serial.read();

/*************** MOTOR 1 ***************/

if (serial == '0')

{

angle += inc;

}

else if (serial == '1')

{

angle -= inc;

}

if (angle <= 0 ) angle = 0;

if (angle >= 180) angle = 180;

/*************** MOTOR 2 ***************/

if (serial == '2')

{

angle2 += inc;

}

else if (serial == '3')

{

angle2 -= inc;

}

if (angle2 <= 0 ) angle2 = 0;

else if (angle2 >= 180) angle2 = 180;

/*************** MOTOR 3 ***************/

if (serial == '4')

{

angle3 += inc;

}

else if (serial == '5')

{

angle3 -= inc;

}

if (angle3 <= 0 ) angle3 = 0;

else if (angle3 >= 180) angle3 = 180;

/*************** ًWrite angles ***************/

motor.write(angle);

motor2.write(angle2);

motor3.write(angle3);

}

Ahmad showed me how to write the code for 3 servo and how to control on them by using the app.

I couldn't deal with fritzing so i asked salma to help me in downloading.

she send me a free link to download the application.

Overcoming Challenges

When you got stuck, what/who did you turn to? At what point did you have to pause to research or learn more before moving on? What are some mistakes, pitfalls, or challenges that others can avoid if they were doing this assignment?

I can't connect the Bluetooth module to the Arduino Bluetooth control APP, i didn't know what's the problem! Finally i knew that, I should connect the Bluetooth module to the mobile phone :"D

Final Project

This week i know how to communicate wireless via a Bluetooth module to a PC or phone

WOW!

What is the coolest thing that you've learned this week? What is something that you will never forget from this week?

Title of Media

Weekly Digest [OPTIONAL]

Tell us about any other cool things that you've made this week: in the Hands-on activity, tutorial examples, exercises, or any other cool mini-project that you tried out aside from the assignment.

Assignment Design Files

Arduino file

Page updated

Report abuse