Week -4 - Electronics Production

Week 17: Project Development and System Integration

Breathing Library Swasa System Integration

Project Description:

The Breathing Library - Swasa project integrates sustainable and multifunctional features into a library setting. It includes air purification, CO2 removal, a relaxing reading light, and a community reading spot, along with advanced manufacturing techniques such as 3D printing, CNC machining, and electronics production.

Features of Breathing Library Swasa:

  1. Automated Air Purification: Efficient air purification system to enhance indoor air quality.
  1. CO2 Removal: Uses algae to remove CO2 from the air.
  1. User-Friendly Interface: Easy-to-use interface for monitoring and controlling the system.
  1. Cost-Effective: Designed to be affordable with a focus on using locally sourced and sustainable materials.
  1. Customizable: Can be tailored to fit various library sizes and needs.
  1. Efficient Mechanisms: Mechanisms designed for optimal performance and energy efficiency.
  1. Adaptability: Adaptable to different environments and requirements.
  1. Easy Assembly and Maintenance: Designed for straightforward assembly and minimal maintenance.
  1. Future Expandability: Modular design allows for future upgrades and enhancements.

What tasks have been completed?

  • Conceptualization and initial design of the Breathing Library - Swasa project.
  • Creation of 3D models and 2D designs for components using CAD software.
  • Procurement of materials and electronic components from specified sources.
  • 3D printing of custom parts and housing.
  • CNC machining and laser cutting of structural components.
  • Designing and manufacturing printed circuit boards (PCBs).
  • Soldering and assembling electronic components.
  • Programming the microcontroller for system control and integration.
  • Initial testing of individual components and subsystems.

What tasks remain?

  • Final integration of all subsystems (air purifier, CO2 removal, reading light, etc.).
  • Comprehensive testing of the integrated system to ensure functionality.
  • Development of the user-friendly interface for monitoring and control.
  • Further refinement and optimization of the system based on test results.
  • Documentation of the final project and creation of dissemination materials.
  • Conducting pilot implementation in a local library and gathering feedback.
  • Making any necessary adjustments based on pilot feedback.

What has worked? What hasn’t?

What has worked?

  • Successful design and 3D printing of custom parts and housing.
  • Effective CNC machining and laser cutting of structural components.
  • Accurate design and manufacturing of PCBs.
  • Proper assembly and soldering of electronic components.
  • Initial testing of individual components showed positive results.

What hasn’t worked?

  • Some initial designs required modifications due to fabrication constraints.
  • Integration of subsystems presented unexpected challenges.
  • Some electronic components had compatibility issues that needed resolution.

What questions need to be resolved?

  • How can the integration of subsystems be optimized for better performance?
  • What is the most effective way to implement the user-friendly interface?
  • How can the air purification and CO2 removal processes be further optimized?
  • What additional features can be included to enhance user experience?

What will happen when?

  • Final integration of subsystems and comprehensive testing.
  • Development and implementation of the user-friendly interface.
  • Pilot implementation in a local library and gathering feedback.
  • Refinement based on feedback and further dissemination efforts.

What have you learned?

  • The importance of detailed planning and design in project development.
  • Challenges and solutions in integrating multiple subsystems into a cohesive unit.
  • Effective use of advanced manufacturing techniques like 3D printing and CNC machining.
  • Skills in electronics design, PCB manufacturing, and embedded programming.
  • The value of iterative testing and refinement to achieve optimal results.

Production Methods:

  1. Laser Cutting: For precise cutting of acrylic and wood components.
  1. 3D Printing: For creating custom parts and housing.
  1. Circuit Designing: Creating electronic circuit layouts.
  1. PCB Milling: Manufacturing printed circuit boards.
  1. Soldering and Assembling: Integrating electronic components.
  1. Embedded Programming: Programming the microcontroller to control the system.

Sourcing Table:

Material/Component Source Example Suppliers
Filament for 3D Printing Fab Inventory Fablab
Wood Sheets Fab Inventory Fablab
Acrylic Sheets, Cardboard Fab Inventory Fablab
Electronic Components Electronics stores, online platforms, Fab Inventory Thomson Electronics, Amazon, Fablab
Algal Growth Materials Amazon Amazon
Beaker King’s Aquarium King’s Aquarium
Aerator pump King’s Aquarium King’s Aquarium

Electronics BOM:

Reference Value Datasheet Footprint Qty
C1 CP_Elec_D6.3mm_H6.1mm https://api.pim.na.industrial.panasonic.com/file_stream/main/fileversion/19782 fab:CP_Elec_D6.3mm_H6.1mm 1
J1,J4 Conn_PinSocket_1x03_P2.54mm_Vertical_SMD ~ -- mixed values -- 2
J2,J3 Conn_PinSocket_1x04_P2.54mm_Vertical_SMD https://media.digikey.com/pdf/Data%20Sheets/Sullins%20PDFs/NPxCxx1KFXx-RC%2010487-D.pdf fab:PinSocket_1x04_P2.54mm_Vertical_SMD 2
J5 Screw_Terminal_01x03_P3.5mm www.on-shore.com/wp-content/uploads/ED555XDS.pdf fab:TerminalBlock_OnShore_1x03_P3.50mm_Horizontal 1
J6 Screw_Terminal_01x02_P5mm https://www.on-shore.com/wp-content/uploads/OSTTAXX0161.pdf fab:TerminalBlock_OnShore_1x02_P5.00mm_Horizontal 1
M1 Module_XIAO-ESP32C3 https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/ fab:SeeedStudio_XIAO_ESP32C3 1
LED Neopixel String Lights 1 (41 units)
S1 MQ 135 1
S2 DHT Sensor 1
Power Module Adapter 1

Material and Machining BOM:

SL NO PART NAME SOURCE QUANTITY PRICE TOTAL
1 3D PRINTING FABLAB INVENTORY 18 hrs ₹200 ₹3600
2 M3 NUTS AND BOLTS FABLAB INVENTORY 15 ₹5 ₹125
3 M4 NUTS AND BOLTS FABLAB INVENTORY 5 ₹5 ₹25
4 PCB MILLING FABLAB INVENTORY .5 hrs ₹150 ₹75
5 Card Board Fablab 1 ₹.5 ₹10
6 Aquarium Cost (beaker) Fablab 2 300 600
TOTAL ₹4435

Total Project Cost:

Electronics BOM Total: ₹2000

Material and Machining BOM Total: ₹4435

Overall Total: ₹6435 INR


Gantt Chart