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17. Applications and Implications

This week I worked on define the scope of my project, and develop a project plan including a bill of materials(BOM).

Overview

Propose a final project masterpiece that integrates the range of units covered, answering:

  • What will it do?
  • Who’s done what beforehand?
  • What will you design?
  • What materials and components will be used?
  • Where will come from?
  • How much will they cost?
  • What parts and systems will be made?
  • What processes will be used?
  • What questions need to be answered?
  • How will it be evaluated?

What will it do?

This is a smart night lamp that allows users to remotely control the light switch, adjust the color, and monitor the room’s temperature and humidity in real-time. Its gentle color temperature aids sleep and provides illumination for nighttime trips to the bathroom. The light features a square design with wooden stripes forming the character “δΈ­” (meaning “center” or “middle” in Chinese), evoking a sense of classical elegance. This design element is reminiscent of the profound heritage of Chinese culture and traditional patterns.

Who has done what beforehand ?

I gain remotely control switching of lamp from this video. The blogger in the video uses MQTT to achieve remote on/off control of an LED light strip.

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I gain inspiration from this outlook of the lamp. I was really impressived by the patterns and also the clever thread structure design, and press-fit design too! Its pattern reminds me of the ancient Chinese pattern, and this idea encourages me to design a Chinese traditional pattern, Especially some patterns of cultural relics in the Forbidden City. I hope I can design these patterns and apply them to my project works.

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What will you design ?

  • Traditional/ Ancient Pattern
  • Lampshade outside frame with the pattern X5
  • Integrated lamp shade (bottom removed)
  • Lamp shade bottom and corner screw holes x1 ; corresponding supports with thread structure x4
  • Lamp shade trepanning with thread structure, with a support connected to it
  • LED light strip wiring method
  • The power method / The power bank position
  • The position of the PCB, temperature sensor
  • User Interface

What materials and components will be used ?

  • Plywood
  • PLA filament
  • LED strip
  • Grove DHT11
  • XIAO ESP32 C3
  • 502 glue
  • CCL(copper-clad plate)
  • Dupont thread
  • Tin bar
  • Sand paper

Where will they come from?

Chaihuo Maker Space, Shenzhen

  • Grove DHT11
  • XIAO ESP32 C3
  • CCL(copper-clad plate)
  • Dupont thread
  • Tin bar
  • Sand paper
  • Other componets on the PCB, see as bellow

ISA Science City Fab Lab

  • Plywood and PLA filament

  • Katherine

  • LED strip

How much will they cost ?

The cost may cover these components below, for polywood and PLA, it may just about 20 RMB.

Component Amount Price Notice
LED strip 1 34.9 οΏ₯
XIAO ESP32C3 1 4.99 $
Grove DHT11 1 5 $
CONN HEADER SMD 10POS 1.27MM 1 0.88$
CONN HEADER SMD R/A 4POS 2.54MM 1 0.93 $ It’s a 6POS component, you need to adjust it to 4POS manually
CONN HEADER SMD R/A 3POS 2.54MM 1 0.93 $ It’s a 6POS component, you need to adjust it to 3POS manually
Tactile Switch SPST-NO Top Actuated Surface Mount 1 1.08 $
LED BLUE CLEAR 1206 SMD 1 0.23 $
RES 1K OHM 1% 1/4W 1206 1 0.1$
RES 499K OHM 1% 1/4W 1206 1 0.10$
JUMPER WIRE F/F 6” 20PCS 1 2.10$
Dupont Cable 1 8.99 $

In total , materials and components may cost around 23$.

What parts and systems will be made ?

  • The inner part structure to support PCB,LED strip, Power wire
  • The middle lampshade
  • The outlook lampshade
  • Micorcontrolers and electronics system on PCB
  • MQTT Communication & User interface
  • Led Color Mode

What processes will be used ?

I will work on my PCB schemetic diagram first, this enable the following steps for the whole project. Then I will mill the PCB and also make a copy one in case the initial one not working. After that, I will work on the outlook of my project. I need to define the traditional patter, and laser cut it. Last, I will work on the user interface, networking and communication, edit the program to enable the night lamp.

What questions need to be answered?

  • How do the communication implement?
  • How to design the user interface?
  • How to assemble different parts in a better way?

How will it be evaluated ?

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.

Is all functions working?

  • remotely turn on/off
  • remotely color adjustment
  • real-time data visualization

Extra credit:

  • User Interface simple and beautiful

  • Programming:
    No time delay / laggie networking when operating.