Assemble CTF Challenge Writeup

Challenge Information

Name: Assemble
Points: 500
Category: Hardware
Objective: The objective of the “Assemble” challenge is to correctly configure the hardware components and troubleshoot any technical issues to display the flag on the LCD.

To solve the “Assemble” CTF challenge, the following configurations were made:

Wiring Matrix Module to Arduino:
- C4 -> 13
- C3 -> 12
- C2 -> ~11
- C1 -> ~10
- R1 -> ~9
- R2 -> 8
- R3 -> 7
- R4 -> 6
Attach Potentiometer and LCD to Breadboard:
- Potentiometer wiring:
  - GND to Blue rail
  - 5V to Red rail
  - I/O - LCD ‘VEE’
- LCD Wiring:
  - VSS to Blue rail
  - VDD to Red rail
  - RS to A0
  - RW to A1
  - E to A2
  - D7 to Blue rail
  - D6 to Red rail
  - D5 to A5
  - D4 to A4
  - D3 to A3
Technical Issues:
- Encountered technical issues where the flag would not display on the LCD.
- Despite the issues, the excons provided the flag as a gesture of completion.
- You can view it on the video in this directory

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