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This is my make-through for the week's assignment.
Grab a cup of coffee! Buckle up your seat belt! Enjoy the upcoming greatness!
PROCESS MAP
PROCESS MAP
BACKGROUND
BACKGROUND
Use the basic aspects of human-centered design.
Apply design thinking methodology to my product.
Prototype through CAD.
Create RGB LED PCB.
Create atmega328 PCB.
The smart bulb
atmega328 board
RGB LED board
OBJECTIVE #1: Empathize stage
OBJECTIVE #1: Empathize stage
Trial #1(Successful): Interviews and insights
Trial #1(Successful): Interviews and insights
I am finding a solution to make a cool smart lighting system.
Step1: My target users are (F/M), age between (25-35).
Step2: Through the interviews I wanted to get a sense of their behavior around the house. So I started asking questions like (tell me about your bed time routine), (how do you enter your house at night), (do you leave lights up during the night?).
Step3: I conducted 3 interviews with my sister, a married male friend and a married female friend.
Step4: I found new insights and got like 2 new ideas through the interviews.
Step5: My users got two main issues (cost & reliability). They were afraid that something like a smart bulb could be expansive comparing to normal bulbs, as well as is it reliable! can it live for one or two years like traditional bulbs.
Step6: I got my problem statement as follows:
- M/F (21 - 30) [Needs a way to]
- Have a cool lighting system that's controlled without normal switches and still fit in their home (Nagafa, Applika or dressing mirror). [Because]
- They got sick of choosing certain bulbs' colors for some rooms and needs one bulb to serve their need. Tired of turning of the light and sprint to bed before the scary shadow catches them. Enter their home in the night and start touching around to find the bulb switch.
During interviews empathy map
OBJECTIVE #2: Ideation stage
OBJECTIVE #2: Ideation stage
Trial #1(Successful): Brainstorming
Trial #1(Successful): Brainstorming
Step1: I already had some ideas on my own but after the interviews I had to refine them a bit.
Step2: Inspire from the products my users mentioned during the interviews.
Step3: I used mind mapping to match the behavior of the users with the features I can add to the product.
Step4: I could settle on 5 brilliant ideas that can help solve the users' problem.
Step5: I used bright stars matrix and added (cost & reliability) as my criteria.
Step6: I picked my final solution as [Normal RGB LED bulb].
Bright stars
OBJECTIVE #3: Understanding electronics
OBJECTIVE #3: Understanding electronics
Trial #1(Successful): Create electronics BOM
Trial #1(Successful): Create electronics BOM
Step1: After some research I defined the electronics I am using for this project.
Step2: I created BOM with quantity and price.
Trial #2(Successful): RGB LED board
Trial #2(Successful): RGB LED board
Step1: When it comes to electronics, I am not that good about. SO it was hard for me to understand the way to make the LED board.
Step2: Thanks to Ahmed Ibrahim he helped me understand this schematic and I picked my way from there.
RGB LED schematic
Trial #3(Successful): RGB LED PCB
Trial #3(Successful): RGB LED PCB
Step1: After I understood the schematic I went over and opened Eagle to start building this board.
Step2: It was quite difficult to find the footprint for the 5*5mm ,6pins ,12V RGB LED but eventually I found it.
Step3: I created a DXF file in Fusion 360 to use it as the PCB layout to ensure it will fit in my enclosure.
Step4: I pulled this board from Fusion 360 back into Eagle and started routing my way through the components.
Step5: It was like building a puzzle. I needed to place the LEDs in geometric places to make sure the light strength is equally disrupted,
RGB LED board
Trial #4(Successful): Microcontroller board
Trial #4(Successful): Microcontroller board
Step1: I am using SMD atmega328 as microcontroller. So this is the same board I used before for creating Qubic.
Step2: I only replaced the 5v voltage regulator from the 1117 SMD to 7805 through hole and replaced the capacitors closer to it.
Step3: I am using the same PCB layout to ensure it will fit in my enclosure.
atmega328
OBJECTIVE #4: Prototyping stage
OBJECTIVE #4: Prototyping stage
Trial #1(Successful): Prototyping
Trial #1(Successful): Prototyping
Step1: Create a shape that reflects the traditional bulb and the new system we're using.
Step2: The body (blue part) is 36mm in diameter and 50mm in height, with fittings inside to hold our electronic boards.
Step3: There's two boards Microcontroller in the bottom and RGB LED board in the top.
Step4: There's a top cover made of acrylic to allow the light out.
Step5: Distance between LED board and the acrylic cover is 10mm to avoid focusing dots.
Step6: Problems I am aware of that I will need to scale the enclosure to fit the ac-dc converter as it's big in size.
The smart bulb
LED board in top
MC board in the bottom
Side fittings to hold the boards
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