## Flowed Light

Hello Everyone! This is my project Flowed Light.

The Flowed Light is an hourglass light which can go off gradually.

When you turn it upside down, it will light up in rainbow color. And when you turn it back, it will all change to white and go off gradually from the top to the bottom.

It can be used as a Pomodoro light and a night light suited for people who don’t like to sleep in a dark environment.

https://www.instructables.com/id/Flowed-Light/

Materials:

• Glass bottle
• Hourglass (3D printing)
• Tilt switch
• HUZZAH & Circuits

Steps:

• Purchase materials
• 3D model the hourglass according to the glass bottle’s size
• 3D print the hourglass (print-bath-clean)
• Learn and finish the coding
• put the circuit into the hourglass
• stick the LED strip onto the surface of the hourglass
• HUZZAH & Circuits

Challenges:

• Small space!!!!!!
• 3D printing (size & structure)
• How to make it portable
• How to hide the circuit
• How to stick the LED strip onto the surface of the hourglass
• How to put the hourglass with LED strip into the bottle

I learned a lot from both the formation and coding from this project. I met a lot of difficulties on the challenges above, especially the small spacing of the product makes everything harder. And thank Becky, Oya and Helen for help! 🙂

## Homework

Hello! Here is my homework for this week:

Lesson 4

Lesson 5

Lesson 6

For the final project ideas, thank you so much Becky for your feedbacks!! They are really helpful!! I have thought about some steps to make it and I am sorry that I have some further questions about the first and the second ideas:

For the first idea, I would love to choose the addressable strip for the material of the light, and for the else part of the product, I am wondering if I could use some 3D printing because it is really hard for hand-making.

For the second idea, personally I like it very much and this week homework helps me a lot about how to make it. For the physical part, I want to use different kinds of felts and learn about the patterns to sew them. If the first idea is hard to actualize I will choose this one to continue with.

Thank you so much 🙂

## Homework & Ideas for final project

Hi all! I am sorry for the delay.

Here is my homework.

And these are my ideas for the final project:

1.Flowed Light

It comes from my previous idea. The flowed light use the flowing of light to represent the passing of time. When you turn on the light, it will all light up and then goes off gradually from the top to the bottom of the spiral.

2. Long-distance connected teddy bears

The long-distance connected teddy bears are used for the long-distance relationships, including the lovers, families, and friends. When you hug one of the bears, the two bears’ hearts will light up together.

3.Speaking pressure ball

The speaking pressure ball can help people release the pressure by patting it. And at the same time when patted, it will say some words randomly like “take it easy!”, “it will be fine” or “cheers baby!”.

Thank you!!

## Halloween Costume by Group HeyHeyHey

The members of group Hey Hey Hey are: Sherry, Leng and Anna

Above showcase our final concept for our costume. It is a penguin floating on a cloud. The concept was inspired by our combined admiration for penguins and the addition for the cloud is for the penguin to float around trying to find a new home because his home back in the Antartica is slowly melting away.

Here is our making process.

Week one: we figured out the pattern of the hood and made the prototype of it, and started coding and sawing at the same time.

Week 2: We continued sewing and soldering from last week. We also made the “cloud” by stuffing and placed the circuit inside it. Then we connected the hood and the cloud, which was quite hard because the circuit needs to go through both the hood and the cloud and stay still on its proposed position, and we also need to find ways to hide the Arduino board and the wires. At last, we filled the hood with stuffing and finished all the connection and details.

Feeling from Leng:

I feel very excited to interact with the audience and see others taking pictures with us. And as an international student, I feel the enthusiasm of local people. Although it is a little hot to wear, I am very happy to experience different cultures.

## Halloween Costume by Group HeyHeyHey

Hello everyone! We are group HeyHeyHey and our group members are Anna, Leng, and Sherry.

This week we finished working on our Halloween Hood, which is a pink penguin floating on the cloud.

We continued sewing and soldering from last week. We also made the “cloud” by stuffing and placed the circuit inside it. Then we connected the hood and the cloud, which was quite hard because the circuit needs to go through both the hood and the cloud and stay still on its proposed position, and we also need to find ways to hide the Arduino board and the wires. At last, we filled the hood with stuffing and finished all the connection and details.
We really had fun with making this cute costume and we are looking forward to the parade!

## Week 5 Homework

Hello! Here are my week 5 homework.

I met some problems with NeoPixel and thanks to the help from Leng and Helen, it turned out great at last! I feel really excited and I am looking forward to the next class!

## Homework: Plush toy

Hello! This my final plush toy – Smile.

When turning on the switch, it looks in this way:

### How I make this plush toy

• Finish the sketch of the toy and the circuit
• Choose the fabrics
• (1) The fabric for the hair and eyes: black and very thick fabric to block the light
• (2) The fabric for the face: flesh and thin fabric to let the light get through it
• (3) The fabric for the mouth: Two different red fabrics
• Cut the outline of the hair, face, eyes, and mouth
• Add a thickness to both the hair and the face
• Sew all the parts together! Hair-face-details
• Finish the circuit
• (1) Buy the electric materials: two red LEDs, one AA2 battery case
• (2) Choose the resistors
• Two 100 ohm – the light can get through the fabric and are not too dazzling
• (3) Solder them together!
• Place the circuit inside the face of the plush toy and adjust the position of the LEDs
• Fill the face with cotton and close the face part
• Finish!

### Difficulty

The most difficult part I met is to sew the hair together. The black fabric is too thick so I cannot use the sewing machine. At first, I sew the thickness part to the front piece and then to the back piece. When sewing it to the back together, I use two steps: at first start in the middle of it and sew one half side, and then the other side. And it becomes more and more difficult when getting close the side.

### Circuit diagram

The circuit has two LEDs, two 100 ohm resistors and a battery case with a switch. I use paralleling to connect the two LEDs so they won’t be affected by each other.

### The name and the story

His name is Smile. This is a simple name and he has a simple hope to bring happiness to others.

Smile comes from a comic book and travel to the world where we live. During his travel, he found that smile is contagious, which means when he smiles to other people, they often smile back even they don’t know each other really. It always makes him feel happy, and he hopes others to feel happy too.

## Week 3 Homework

Hello! Here is my homework for week 3.

Digital Input

The Serial Monitor

Two buttons control one LED

It is very interesting to write code. And here is my final code.

```
const int buttonPin1 = 2;
const int buttonPin2 = 3;
const int ledPin =  13;

void setup() {
pinMode(ledPin, OUTPUT);
pinMode(buttonPin1, INPUT);
pinMode(buttonPin2, INPUT);
}

void loop() {

digitalWrite(ledPin, HIGH);
}

digitalWrite(ledPin, LOW);
}
}
```

Thank you!

## Week 2 Homework

Hello! Here is my homework for week two.

RGB LEDs

I found it is interesting to connect the circuits. However, it is a little difficult to remember the code. And I am looking forward to the challenges in the future!

## Rice Cooker Teardown

Introduction

I bought a rice cooker from the thrift store. And this is a brief introduction:

A Glass Lid (Lost)
B Inner Pot
C Heating Body
D Panel
E Cook Switch

This rice cooker is very easy to use. Just connect the plug into a outlet and switch the rice cooker ON. It will start cooking and the cook light will illuminate. After cooking, the rice cooker will keep warm automatically and the keep warm light will illuminate.

Teardown steps

Step 1 Remove the Bottom Plate
1.1 Remove the spanning screw
1.2 Remove the rubber cushions
1.3 Unscrew the legs
1.4 Remove the bottom plate

Step 2 Remove the Hotplate
2.1 Unscrew the screw of wire groups
2.2 Bend & unlock the spring latch
2.3 Unscrew the surrounding screws
2.4 Remove the hotplate

Step 3 Tear down the inner parts
2.1 Push the plates together to unlock the hotplate.
2.2 Find the spring inside the hotplate
2.3 Find & unlock the heating piece
2.4 Cut the wire groups
2.5 Drag out the panel
2.6 Unscrew the panel

Reassembly & Conclusion
What makes me really surprised is its working style. The rice cooker uses its wonderful structure to achieve the cooking and keeping warm function. The most interesting thing is the spring inside the hotplate. I reassemble some parts of the rice cooker and realize the fact that, the spring is compressed in the cooking mode to let the inner pot keep close to the heating body, while it extends in the keep warm so that the inner pot can keep away from the heating body. And it is really excited to find out how it works with the cook switch on the panel. I realize that some ingenious designs are very simple but really useful!