Project

# Title Team Members TA Documents Sponsor
26 Wearable Air Quality Monitor
 Xin Yang
Ziheng Li
Zonghan Yang
 Chentai (Seven) Yuan design_document1.pdf
proposal2.pdf
proposal1.pdf
# **Wearable Air Quality Monitor**

Team Members:

• Ziheng Li (zihengl5)

• Xin Yang (xiny9)

• Zonghan Yang (zonghan2)

# **Problem**

Air pollution has been a growing global concern. The World Health Organization estimates the air breath by 9 out of 10 people containing high levels of pollutants, leading to billions of people suffering in health issue related to it. Despite this severe situation, most individuals lack real-time information about the air quality in their current environment. And existing air quality monitors are often expensive, with prices ranging from $100 to several hundred dollars, which is not affordable to every individual. In addition, most air quality monitors are designed for fixed location and often contains limited information.

# **Solution**

We propose a wearable air quality monitor that can track crucial air quality parameters such as temperature, humidity, PM2.5, PM10, and CO2. Our solution aims to address the following key points:
1. Affordability: By optimizing component selection, we aim to keep the price of our device between $50-80, making it 2 times more affordable than current market alternatives.
2. Portability: The compact and wearable design ensures users can monitor air quality wherever they go.
3. Comprehensive monitoring: Our device will track multiple air quality parameters to provide an overview of the environment.
4. Real-time data and notifications: The device will connect to smartphones via Bluetooth or Wi-Fi to provide real-time data and send notifications when air quality is bad.
5. User guidance: Based on the detected air quality, the device will suggest actions such as wearing a mask, closing windows, or avoiding outdoor activities.

# **Solution Components**

**Sensor Subsystem**

This subsystem will handle all data measurements, including temperature, humidity, CO2 level, and pollutants like PM2.5 and PM10.

Components:
- Temperature and Humidity Sensor: SHTC3

- Particulate Matter Sensor: PMS5003

- CO2 Sensor: (Specific part number to be determined)

**Processing Subsystem**

The core of our processing subsystem will be responsible for collecting sensor data, performing necessary calculations, and evaluating whether air quality thresholds are exceeded.

Components:

- Microcontroller: (specific model to be determined)

**Communication Subsystem**

This subsystem will allow the device to communicate with a user's smartphone via Bluetooth or Wi-Fi. It will send data to the connected mobile app and send notifications if air quality get worse.

Components:

- Built-in Bluetooth and Wi-Fi capabilities of the microcontroller

**User Interface Subsystem**

This subsystem will provide immediate visual feedback to users.

Components:

- OLED Display: (Specific part number to be determined)

**Power Subsystem**

This subsystem will manage power supply, charging, and discharging.

Components:

- 5V Rechargeable Lithium Battery: (Specific part number to be determined)
- Power Management IC: (Specific part number to be determined)
- Voltage regulator

**Outer-packaging Subsystem**

This subsystem will focus on the physical aspects of the device, including protection and wearability.

Components:

- 3D-printed outer shell
- Clip for attachment to backpack or clothing

# **Criterion For Success**

1. Cost Effectiveness: The final product cost should not exceed $80, making it at least 50% cheaper than the lowest-priced comparable product on the market.
2. Accuracy: The device should achieve accuracy rates within ±10% of readings from professional-grade air quality monitors for PM2.5, PM10, and CO2 measurements.
3. Battery Life: The device should operate continuously for at least 24 hours on a single charge under normal usage conditions.
4. Response Time: The device should detect significant changes in air quality and send notifications to the connected smartphone within 60 seconds.
5. Durability: The device should continue to function normally after from -10-120 Fahrenheit.
6. User Interface: Users should be able to read and interpret the OLED display data at the first use.
7. Connectivity: The device should maintain a stable Bluetooth or Wi-Fi connection with the smartphone app at a distance of up to 5 meters.
8. Size and Weight: The final product should not exceed the dimensions of 15cm x 15cm x 15cm and should weigh less than 500 grams.
9. Custom PCB Design: Design a custom PCB that integrates all necessary components while meeting the size and power requirements of the device.

Cypress Robot Kit

Todd Nguyen, Byung Joo Park, Alvin Wu

Cypress Robot Kit

Featured Project

Cypress is looking to develop a robotic kit with the purpose of interesting the maker community in the PSOC and its potential. We will be developing a shield that will attach to a PSoC board that will interface to our motors and sensors. To make the shield, we will design our own PCB that will mount on the PSoC directly. The end product will be a remote controlled rover-like robot (through bluetooth) with sensors to achieve line following and obstacle avoidance.

The modules that we will implement:

- Motor Control: H-bridge and PWM control

- Bluetooth Control: Serial communication with PSoC BLE Module, and phone application

- Line Following System: IR sensors

- Obstacle Avoidance System: Ultrasonic sensor

Cypress wishes to use as many off-the-shelf products as possible in order to achieve a “kit-able” design for hobbyists. Building the robot will be a plug-and-play experience so that users can focus on exploring the capabilities of the PSoC.

Our robot will offer three modes which can be toggled through the app: a line following mode, an obstacle-avoiding mode, and a manual-control mode. In the manual-control mode, one will be able to control the motors with the app. In autonomous modes, the robot will be controlled based off of the input from the sensors.