2 layers68.8 × 53.6 mm
Relatively Universal ROM Programmer
AndersBNielsen/Relatively-Universal-ROM-Programmer
Hardware to program W27C512 EEPROM or any 24/28/32 pin ROM requiring from 5V to 27V programming voltage.
149 parts257GPL-3.0
2 layers53.9 × 54.2 mm
Updated mood
wrightedu/moodAhem, I mean welcome to the PCB design portion of your summer camp!
- Size
- 53.9 × 54.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 41
- Pads
- 71
- Tracks, vias
- 42, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 5 Jul 2023
- Updated
- 29 Jun 2024
Overview
Updated mood is an open-source printed circuit board by wrightedu, from the wrightedu/mood repository on GitHub. It is a 2-layer board of 53.9 × 54.2 mm with 11 parts on 41 nets, routed with 42 tracks and 0 vias.
It is built around the ARDUINO UNO R3. Its parts include 3 resistors, 3 connectors, 2 diodes and 1 IC. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.md
Table of contents
Rationale
Welcome to you're doom!
Ahem, I mean welcome to the PCB design portion of your summer camp!
This project was selected to introduce a variety of topics including:
- Circuit schematics / basic electronics
- PCB design (Computer-Aided Design using KiCAD)
- Hardware / Software trojans
- Hardware / Software bugs
By the end of these two weeks you will have a basic understanding of how to layout and build a basic circuit and what vulnerabilities it may have (unintentional or otherwise).
Safety
A (brief) word on safety. All of the equipment and materials used in this project are safe, so long as they are used properly.
Our goal is to make sure that over the two weeks of this project you are instructed on how to perform each of the steps needed to manufacture a PCB safely. Please do NOT turn on any of the machines or use any of the equipment until you have had the safety overview for that equipment or process.
Similarly, if you are unsure on the safe way to perform some process just ask one of
our several lab assistants. We are happy to help! There will be additional safety
instructions covered over the course of the two weeks and all relevant safety documents
will be kept in the Safety folder in this repository.
Bill of materials
Most of the materials have already been inlcuded in your Elegoo kit. These include:
- Arduino project board
- Various items from the Elegoo kit:
- 2x Tri-color LED
- 3x 330Ω Resistors
- Buzzer
- L293D
- DC Motor
- IR Receiver and Remote Control
- 2μF Capacitor
Other items needed include:
- Copper clad PCB board
- Solder
- PCB Fabrication Equipment
The Circuit
The circuit started as this:
This is the schematic:
This is the PCB layout:
This is the final product:
KiCAD
We will be using the open source Computer-Aided Drawing / Electronics Design Automation (CAD/EDA) suite KiCad. This software can be installed freely on Windows/Mac/Linuxand is very powerful. Further documentation and cheatsheets can be found in the KiCad folder of this repository.
Design
The project aims to design a remote-controlled color-changing light system with RGB LEDs controlled by three PWM signals. The system will be operated using an IR remote controller, allowing users to adjust LED colors and brightness levels to create various vibrant RGB combinations. Notably, as a part of the project's educational goals, an intentional inclusion of "malicious" code will be introduced. This demonstration will emphasize the importance of secure coding practices, as the code will play the E1M1 DOOM song when a specific button sequence is entered. The project's primary focus is on exploring LED control technology, color customization, and the implications of unsecured coding practices. Safety measures will not be implemented, as the project's central objective is to highlight the potential risks associated with inadequate security measures. The project seeks to provide users with an informative and insightful experience while demonstrating the significance of security in electronic systems.
Ardunio Software
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R3, R4 |
| 2 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3, J6 |
| 2 | LED_BKGR | LED_THT:LED_D5.0mm-4_RGB_Wide_Pins | D1, D2 |
| 1 | Arduino_UNO_R3 | Module:Arduino_UNO_R3 | A1 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | L293 | Package_DIP:DIP-16_W7.62mm | U1 |
Questions
How big is the Updated mood PCB?
It measures 53.9 × 54.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Updated mood use?
11 parts, built around the ARDUINO UNO R3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Updated mood KiCad files?
From the wrightedu/mood repository on GitHub, at the commit this page was made from: the board is updated_mood/updated_mood.kicad_pcb and its schematic KiCad/updated_mood.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Updated mood design in my own project?
Its repository states no licence, so its author keeps all rights: ask wrightedu before reusing the design.
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