Assignment

Assignment for the week is to Propose a final project masterpiece that integrates the range of units covered. Your project should incorporate:

  • 2D and 3D design
  • Additive and subtractive fabrication processes
  • Electronics design and production
  • Embedded microcontroller interfacing and programming
  • System integration and packaging.

I did my documentation in my final project page. I discuss the following in my final project page:

Here in this page i also discussed similar things above.

Background

It is a requirement to complete a final project in order to graduate from fab academy. AT the beginning i had three potential project ideas and i was hoping to work on one of the as my final project. All my ideas are based on their potential market available in Nigeria and the feasibilty of making more of them after my FabAcademy training. the projects are

At the end of The day i decided to work on TouchGuard which is a biometric/password based locker system and i am really looking forward to making it come to reality.

Problems/questions that need to be solved

  • The lock cylinders of safe or lockers often gets spoilt and needs to be changed
  • The key to a locker can get lost and cylinder might need to be changed in other to get key replacement
  • Anonymous person can access locker contents if they get the key even without authorisation

TouchGuard is a system that encompasses both biometric and password systems for granting access to a locker. It help to eliminate the need to carry key about and aslo solves the problems of missing keys.

Review

Here in Nigeria, due to low productivity in making technological gadgets, There is hardly any locally made biometric safe made. However, The followings are projects similar to TouchGuard made by various group around the world.

Parts To be made

I will be discussing the different aspect of this project under the following headings:

  1. Box (body) design
  2. Control box design
  3. Electronic design
  4. Programming
  5. Other finishing attachments
  6. Integration into finished project

Processes used

  • PCB board design and production
  • Embedded Programming of sensors
  • 3D Design and Printing of electronic board casing
  • Incorporation of electronics into 3D casing
  • 3D Design,cutting, and assembly of main wooden box
  • Laser cutting, vinyl cutting and attachment of logo
  • Integration of all parts

The fabrication process is summarissed at final project site

Materials to be used

The following materials are expectged to be used for the construction of the locker.

  • Wood probably MDF
  • Microcontroller
  • Finger print sensor
  • Keypad
  • pir sensor
  • 3D parts
  • display
  • Locking device

All materials can be source from local stores in Nigeria and can also be imported online. In depth regarding the materials for the project can be found Here at the BOM section.

Bill of Material (BOM)

Source Of material.

I was fortunate enough to get my components from my Lab but Components used for making the project can be obtained from:

  1. Local Sources In Nigeria
    • Hub 360. Hub 360 electronics offer wide range of electronics component and have their stores in various cities in Nigeria. They also offer online ordering services
    • Microscale Electronics. Microscale electronics also offer wide range of electronics component and have their stores in various cities in Nigeria. They also offer online ordering services
    • Other Electronics stores available
    These local sources are quick to get stores and all materials used can be found in them
  2. Online Vendors such as These online vendors connects us to wider stores both locally and abroad and while they may take time to deliver, all and more of components needed can be found in them

The following table list the materials used in developing the project up to the current status.
Note: Prices varies from time to time but for each product mentioned, there is a link to a source for pricing.

S/N Part/ Device/ Material Quantity Unit Price (dollars) Total Price (dollars)
1 16mm MDF Wood: For wooden box 1 Sheet (2440 x 1220mm) 11 11
2 Fingerprint Sensor: For electronics 1 7 7
3 4 x 3 Keypad: For electronics 1 2 2
4 Oled sh1106 128 x 64: For electronics 1 3 3
5 12v Solonoid Lock: For electronics 1 4 4
6 Raspberry pi pico: For electronics 1 5 5
7 Pir sensor: For electronics 1 1 1
8 LED : For electronics 1 20 20
9 Embroidery Thread and yard: for Embroidery 3 0.2 0.6
10 PLA fillament For 3D printing 1 13 13
11 Resistors: For electronics, 1K 3, 10k 3 6 0.03 0.18
12 Capacitors:For electronics 10uf 2 0.03 0.06
13 MOSFET_NTO252: For electronics 1 0.2 0.2
14 DIODE_SCHOTTKY_CDBM1100-G: For electronics 1 0.1 0.1
15 Voltage REGULATOR_LM1117SOT223: For electronics 1 0.1 0.1
16 PCB board : For electronics 1 0.2 0.2
17 Headers Headers: For electronics Multiple 0.2 0.2
18 Tires: For Wooden Box 4 0.2 0.8
19 screws:For Integration of parts Multiple 0.1 0.1
20 Double sided tape: For Integration of parts 1 0.6 0.6
21 Mirror Acrylic 2mm: For TouchGuard Logo 1 1.3 1.3
22 sticker paper: Fabacademy logo design, blue,black and red Multiple 0.3 0.3
23 S2B-PH-SM4-TB: Plug for solonoid 1 0.03 0.03
24 Total 70.23$

Target success and evaluation

The project will be considered a success if it reaches the operational Milestone where by the locker is fully constructed with the security system functional


Contact Me

Phone: Email: Address: Repository:
+2348132166281 mjidda@nitda.gov.ng No.3 Alimoh Abu street, wuye districs.Abuja Nigeria. Gitlab Repo