Category: Class Introductions

Aroma diffuser for Meditate

I want to use Arduino to do a project; use an aroma diffuser to help people meditate; first, the aroma diffuser can be equipped with a bracelet, which can be placed on top of the aroma diffuser. At the same time, the bracelet can rotate on the aroma diffuser, so that , this bracelet can control the startup time and timing of the aromatherapy machine. Second: this bracelet can be taken off and turned in the hand, just like normal people use Buddhist beads. As the user turns the smart bracelet, the fragrance of the aromatherapy machine will also change. It can get thicker and thicker. Because this rotation process controls the switch of the aroma diffuser to release fragrance.

I have already have a idea of how the things works, The part list is below:

• Hall Effect Sensor: For detecting the magnetic connection.
• Rotary Encoder: Installed on the bracelet for tracking rotations.
• Arduino Control Board: To process signals and control logic.
• Bluetooth Module: For wireless communication between the bracelet and diffuser.
• Relay Module: To control the power and intensity of the diffuser.
• LED Lights and/or Buzzer: For user feedback.
• Battery: To power the bracelet.

I might need a smell Arduino set into the bracelet, for this Rotary encoder to works.

This is a hard concept. But i really want to try. i have already draw the concept and made quick model just like the image i uploaded.

Material Preparation：
Photoresistor: used to detect the ambient light intensity.
Color LED: used to display different colors.
Microcontroller (e.g. Arduino): used to control the LED and read the value of the photoresistor.
Resistor: used to limit the current and protect the LED and the photoresistor.
Breadboard and/or soldering tool: used to build the circuit.
Wires: to connect the parts of the circuit.
Power source: can be a battery or a stand.
Sensors (optional): such as temperature and humidity sensors for weather-related functions.
Programming cable: connects the microcontroller to the computer.

Circuit diagram design:
Connect the photoresistor to one of the analog inputs of the Arduino.
Connect each of the RGB LED color pins (red, green, blue) to a digital output of the Arduino through appropriate resistors.
If needed, connect the sensor other to the Arduino.
Connect the power supply:
Ensure that the microcontroller has a stable power supply.
Choose a battery or adapter as needed.
Consider additional features:
To control the color according to time or weather changes, an Ethernet module (e.g. ESP8266) may be needed to get the time or data.
Write and upload code:
Write code to read the value of the photoresistor and control the brightness of the LED or switch it on/off based on that value.
Write code to change the LED color, either based on time or weather data obtained from the network.

Lesson Progress

1 Log in the Adafruit IO and FTTT.

2 Trying to finish the circuit

3 Type in the Username, Active Key and the wifi name of my apartment.

4 Trying to create a new Applet, but i can’t authorize the adafruit service. And i end up here.

List Of Components And Parts:

Theme :Cyber Buddhist niche

My topic is digital faith, how is the digital changing the way we believe

Kneel on the mat in front of the electronic shrine, then insert the electronic incense into the incense burner, and the machine will print the result of your request

Cyber Buddhist niche style design：

I drew a design of a Buddha statue that will be projected onto the screen

Materials required（BOM）：

press sensor, vibration sensor, printing module

Circuit diagram and code:

The press sensor controls the mat, the vibration sensor controls the electronic incense, and the printing module controls the final printed ticket

It’s so complicated! There are really three interactive parts, which is really difficult. In the follow-up production, if it is too difficult, I may reduce one interactive part, so maybe remove the induction of kneeling or the part of burning incense.

(Of course, if I have the ability, I will complete all three interactive parts)

1：Slot machine Help you choose

Designed for me who chooses phobia—When you need to make a choice, go to the category you want to make a choice on the machine, like “What to eat,” “What to wear,” and then tap the top of the slot machine, and the slot machine will help you make a choice

2： Coin sorting + counting piggy banks

As a newcomer to the United States,I can’t remember the denomination of each coin, and I was eager to find out how much my coins added up to, so I needed a piggy bank. It can automatically sort the denomination of coins and calculate the total, and the savings calculation is very practical.

3： Office chair that vibrates

Work or study sitting too long is not good for your health, there is a timer on the chair, when you sit and study for many hours without getting up, the chair will vibrate and swing and light up the red light, indicating you: hurry up and rest for a while

All of my ideas are come from my life.

IDEA 1: Voice Control Lamp
I have two lamps in my bedroom. One is a ground lamp another is a table lamp. The switches of both of them are far away from my bed. Everytime i wanna turn down the light, i have to get up which is annoying. So i wish i can have a Voice control lamp just like the Amazon Echo and Siri that i can talk to. This idea is quiet normal, but it can save me money to buy a new lamp :).(lol)

IDEA 2: Clothing Suggestion Board
Weather in NYC changed randomly. I’d like to have a CLOTH SYGGESTION BOARD to give me advise that what i should wear everyday so that i won’t wear the wrong clothes.

1. plant grow light controller:

Use an Arduino to control a set of LED grow lights to automatically adjust the light intensity according to different times of the day, mimicking the natural photoperiod and helping indoor plants grow.

2. Holiday countdown device:

Make a device that shows how many days are left until a specific holiday. It displays numbers and can play a holiday song or display a special message on the day of the holiday.

3. smart night light:

Create a nightlight that automatically turns on or off using a photoresistor. The nightlight will automatically turn on when the environment becomes dark and turn off when the environment becomes bright. Color LEDs can be further added to display different colors depending on the time of day or weather.

“Hand Glove REX From Naruto Pain ”

In the transcendent world of “Naruto”, the character Pain (Pein), particularly his manifestation as Shurado , presents a fascinating amalgamation of mystic lore and mechanized warfare.

Drawing inspiration from this iconic figure, we introduce “Rex” – a hand glove design project that transcends the boundary between the fictional realm and practical application

sketches for the design concept

The Part list:

• Flex sensor * 1.
• 10k Orm resist
• Led Board Number*8
• Lead circle board * 7
• Adafruit Gemma Mo
• Jumper electric wire
• electric wire * 8

Code

#include <Adafruit_NeoPixel.h>

#define FLEX_PIN A1
#define LED_PIN 1
#define LED_COUNT 60
#define MAX_BRIGHTNESS 150

Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);

int lastFlexPosition = 0;
int state = 0;
unsigned long lastBlinkTime = 0;
const int blinkInterval = 100;

void setup() {
  strip.begin();
  strip.setBrightness(MAX_BRIGHTNESS);
  strip.show();
}

void loop() {
  int flexPosition = analogRead(FLEX_PIN);

  if (lastFlexPosition > 650 && flexPosition <= 650) {
    state = (state + 1) % 7;
  }

  lastFlexPosition = flexPosition;

  int litLEDs = map(flexPosition, 550, 800, 0, LED_COUNT);
  litLEDs = constrain(litLEDs, 0, LED_COUNT);

  switch (state) {
    case 0: setStripColor(litLEDs, strip.Color(255, 0, 0)); break;
    case 1: setStripColor(litLEDs, strip.Color(0, 0, 255)); break;
    case 2: setStripColor(litLEDs, strip.Color(0, 255, 0)); break;
    case 3: blinkStrip(litLEDs, strip.Color(255, 0, 0)); break;
    case 4: blinkStrip(litLEDs, strip.Color(0, 0, 255)); break;
    case 5: blinkStrip(litLEDs, strip.Color(0, 255, 0)); break;
    case 6: randomBlink(litLEDs); break;
  }

  strip.show();
}

void setStripColor(int litLEDs, uint32_t color) {
  for (int i = 0; i < LED_COUNT; i++) {
    uint32_t dimmedColor = dimColor(color);
    strip.setPixelColor(i, i < litLEDs ? dimmedColor : strip.Color(0, 0, 0));
  }
}

void blinkStrip(int litLEDs, uint32_t color) {
  unsigned long currentMillis = millis();

  if (currentMillis - lastBlinkTime > blinkInterval) {
    lastBlinkTime = currentMillis;
    for (int i = 0; i < LED_COUNT; i++) {
      if (i < litLEDs) {
        uint32_t currentColor = strip.getPixelColor(i);
        uint32_t dimmedColor = dimColor(color);
        strip.setPixelColor(i, currentColor ? strip.Color(0, 0, 0) : dimmedColor);
      } else {
        strip.setPixelColor(i, strip.Color(0, 0, 0));
      }
    }
  }
}

void randomBlink(int litLEDs) {
  unsigned long currentMillis = millis();

  if (currentMillis - lastBlinkTime > blinkInterval) {
    lastBlinkTime = currentMillis;
    for (int i = 0; i < LED_COUNT; i++) {
      if (i < litLEDs) {
        uint32_t randomColor = strip.Color(random(256), random(256), random(256));
        uint32_t dimmedColor = dimColor(randomColor);
        strip.setPixelColor(i, dimmedColor);
      } else {
        strip.setPixelColor(i, strip.Color(0, 0, 0));
      }
    }
  }
}

uint32_t dimColor(uint32_t color) {
  uint8_t r = (uint8_t)(color >> 16);
  uint8_t g = (uint8_t)(color >> 8);
  uint8_t b = (uint8_t)color;

  r = (r * MAX_BRIGHTNESS) / 255;
  g = (g * MAX_BRIGHTNESS) / 255;
  b = (b * MAX_BRIGHTNESS) / 255;

  return strip.Color(r, g, b);
}

Wire connections

soldering to the Gemma Mo

Fnal look