Introduction to Mechatronics

Mechatronics is the integration of mechanical engineering, electronics, and programming into a single system. It powers everything from robots to modern appliances—creating smart machines that can sense, process, and act automatically.

For designers, mechatronics is especially powerful:

1. It enables the creation of responsive, automated products.
2. Rapid prototyping with sensors, actuators, and microcontrollers helps test and refine ideas quickly.
3. Real-time data can be used to make products more user-friendly and efficient.

In these first two weeks, we explored hands-on experiments to understand electronics, Arduino, and basic sensors. Each step begins with simple circuits and gradually introduces more advanced concepts.

Core Components (used in most experiments):

1. Breadboard
2. Jumper wires
3. 9V Battery / DC Power / USB power
4. LEDs (single-color and RGB)
5. Resistors (220Ω, 1KΩ, 1MΩ)
6. Potentiometers
7. Push buttons

Sensors and Modules:

1. Arduino UNO (with USB Type-A cable)
2. ESP32 (38-pin)
3. Ultrasonic Sensor (HC-SR04)
4. PIR Motion Sensor
5. MQ Gas Sensor
6. DHT11 Temperature & Humidity Sensor
7. Soil Moisture Sensor
8. OLED Display (SSD1306, I²C)
9. LCD Display (16x2 with I²C module)
10. Neopixel strip

Actuators:

1. Servo Motor (SG90 Microservo)
2. Buzzer

We compiled all our work into a structured PDF that includes:

1. Introduction to mechatronics
2. Basics of electronics (power, resistors, breadboards, LEDs, potentiometers, transistors)
3. Arduino introduction and coding basics
4. 16+ experiments covering LEDs, Neopixels, Servo Motors, Ultrasonic Sensors, LCD/OLED displays, PIR & Gas Sensors, and ESP32 applications

We applied all our Week 1 & 2 learnings to design Menmo – a smart reminder device for Alzheimer’s patients. The device combines ESP32, GPS, LCD, sensors, and a mobile app to provide daily reminders, geofencing safety alerts, real-time tracking, and emotional support messages. With a compact, elderly-friendly design featuring large Yes/No buttons, high-contrast fonts, and a calming color palette, Menmo ensures patient safety while reducing caregiver stress.