Embedded Files
Smart security system
Smart security system
This week, we were asked to design and program a smart device that solves a problem with multiple inputs and outputs. The smart device includes two input components (at least) and two action components (at least)
Ideation:
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)
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)
This time, I conducted research for inspiration for my project and came across a security system on Project Hub that uses Arduino. While I won’t be incorporating any security features or the ultrasonic sensor in my final project, I found projects related to security and user interaction in outdoor environments contexts. So, Ifound it intresting to implement a similiar concept.
Tool Chain
Tool Chain
Which software/machines/materials did you use in the assignment? Why?
Which software/machines/materials did you use in the assignment? Why?
Software: Tinker CAD, ARDUINO IDE
Tools:
> Components:
- Inputs: Ultrasonic sensor, switch
- Outputs: Buzzer, LED (Green)
- Breadboard
- Jumper wires
- Crocodile wires
- Resistors 220 Ohm
- Rosetta
Software
Software
Tinker CAD: to build and simulate the circuit
Arduino IDE: to install the codeblocks on the breadboard
Components and tools
Components and tools
Arduino UNO
(Brain+Power management)
Breadboard
Resistors (220 ohm)
jumpers
Crocodiles
Adaptor (Power source)
Rosetta
Ultrasonic sensor (input)
On/Off switch (Input)
Buzzer (output)
LED (output)
Design/Preparation Process
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?
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?
Tinker CAD and code blocks
Tinker CAD and code blocks
I started by building the circuit on Tinkercad, adding the input components, the ultrasonic sensor and the switch, the output components, the LEDs, and the buzzer.
wiring:
INPUT COMPONENTS
> Ultrasonic: (4 pins)
The VCC is connected to the +ve rail of the breadboard
The trigger pin to the Arduino pin 7
The echo pin to the Arduino pin 6
The GND pin to the -ve rail of the breadboard
>switch: (3 pins)
The middle terminal is connected to the Arduino pin 4
The left terminal is connected to the breadboard -ve rail
The right terminal is connected to the breadboard +ve rail
OUTPUT COMPONENTS
> Buzzer: connected directly to the breadboard
the +ve side is connected to a jumper from the breadboard to pin 3 on the Arduino
the -ve side is connected to the -ve rail of the breadboard
> LEDs: connected directly to the breadboard (Series connection)
added a resistor to each +ve side
the other side of the resistor is connected through jumpers to the Arduino on separate pins (8,9)
the -ve side on the LEDs is connected to a -ve jumper to the -ve rail of the breadboard
Development of the code on Tinker CAD + Arduino IDE
Development of the code on Tinker CAD + Arduino IDE
Week7_code.docxDevelopment/Implementation Process
Development/Implementation Process
Explain the development/implementation process of your assignment. How did you use the machine/tool to manufacture or implement the design of your assignment?
Explain the development/implementation process of your assignment. How did you use the machine/tool to manufacture or implement the design of your assignment?
Development of the circuit with actual components
Development of the circuit with actual components
The tinkercad circuit acted a reference for the actual circuit implementation (overall connection)
ON/OFF SWITCH WIRING
> The middle terminal is connected to the Arduino pin 4
> The left terminal is connected to the breadboard -ve rail
> The right terminal is connected to the breadcoard +ve rail
(using crocodile jumpers)
ULTRA SONIC SENSOR WIRING
The VCC is connected to the +ve rail of the breadboard
The trigger pin to the Arduino pin 7
The echo pin to the Arduino pin 6
The GND pin to the -ve rail of the breadboard
LED WIRING
> added a resistor to each +ve terminal of the LED
> the other side of the resistor is connected through jumpers to the Arduino on separate pins (8,9)
> the -ve side on the LEDs is connected to a -ve jumper to the -ve rail of the breadboard
BUZZER WIRING
> The +ve terminal of the buzzer is connected to a jumper from the breadboard to pin 3 on the Arduino
> The -ve terminal of the buzzer is connected to the -ve rail of the breadboard
Final outcome - Video
Final outcome - Video
WhatsApp Video 2025-02-23 at 11.21.16 PM.mp4WhatsApp Video 2025-02-24 at 12.11.29 AM.mp4Community of Learning
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?
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?
The wiring mistake during my trials caused an issue where the Arduino cable can no longer transfer the updated code. I used a new ARDUINO cable afterwards.
Overcoming Challenges
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?
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?
When coping the wiring from Tinkercad to the actual components, I rarely get it right on the first try. I go through multiple trial-and-error attempts, making adjustments until everything works properly.
Files
Files
Final Project
Final Project
How can you use the skills and knowledge that you've acquired this week in your final project?
How can you use the skills and knowledge that you've acquired this week in your final project?
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