Week 6

" Don't worry about thieves "

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)

I made a security device that consists of an LED light, an alarm device, and a microwave sensor. If it senses someone passing in front of it, the device emits light for three seconds and then turns on the alarm device.

Final Result

If a thief passes in front of the microwave sensor, the LED will blink, then the buzzer will work for 5 seconds, if the thief does not escape from the place the process will be repeated again.

link : How to make a Security System with Ultrasonic Sensor and Arduino

Tool Chain

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

Software

TinkerCad

‏ Arduino IDE

Materials

Electronics

Arduino UNO

breadboard

LED

resistor 220 Ohm

Jumper wires

Buzzer

Microwave sensor

Preparation Process

1

( Electronic circuit in Tinkercad )

The process:

1st I used Tinkercad to simulate the circuit.

I connected the components to the circuit as shown in the picture.
I have selected the appropriate blocks for the code.

2nd I tested the code as shown in the video.

3rd I copied the code to download it to the Arduino.

explain the code sequence:

If pin 2 reads a signal "the device sensed a motion around"

Pin 3 will be HIGH and LOW 3 times to do blink , then pin 4 will be HIGH for 5 seconds to play buzzer sound.

If pin 2 does not read signal.
pin 3 and 4 will be low.

Tinkercad simulate

Circuit Test in Tinkercad

BLOCKS in Tinkercad

2

( Electronic circuit in Breadboard )

The process:

1st I used ArduinoIDE to upload the code to the Arduino.

2nd I tested the circuit as shown in the video.

wiring and pins selection:

+ buzzer ---> pin 4
+LED ---> pin 3
microwave signal ---> pin 2

The circuit on a breadboard

Circuit Test video

CODE in ArduinoIDE

Overcoming Challenges

What kinds of challenges or problems did you face while doing the assignment, tutorials, or exercises? How did you solve them? Did you ask for help from an instructor or peer? Please provide a link to the tutorial or article that you used to solve your problem (if any)

The sensitivity of the sensor was not good, so it was not responding at first, but after I replaced it with another one, it worked perfectly.

Final Project

How can you use the skills and knowledge that you've acquired this week in your final project?

Skills I learned:

I learned what the differences are between all types of motion sensors.
and how to choose the right type for the project.

WOW!

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

Tinkercad Blocks 🔷 🔴 🟨

In some projects it is useful to use Tinkercad Blocks for experimentation, before starting the programming process.

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.

SAY Hi 👋👋

We made a hand that says Hi if you come near it, using an ultrasonic sensor.

Assignment Design Files :

Project.ino

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