#Nutrients in foods

 Nutrients in Foods (Using Arduino and Scratch with Bluetooth Control)

1. Introduction 

● Introduction: Nutrients in Foods 

Nutrients are essential substances found in foods that are necessary for the proper growth, development, and functioning of the human body. They provide energy, build and repair tissues, and regulate various bodily processes. A balanced diet containing the right amount of nutrients helps maintain overall health and prevents diseases. 

There are six main types of nutrients found in food: 

1. Carbohydrates – The primary source of energy for the body. Found in foods like rice, bread, fruits, and vegetables. 

2. Proteins – Essential for building and repairing tissues. Found in foods like meat, fish, eggs, and legumes. 

3. Fats (Lipids) – Provide long-term energy storage and help in the absorption of vitamins. Found in foods like nuts, oils, and dairy products. 

4. Vitamins – Essential for metabolism and immune function. Found in fruits, vegetables, and dairy products. 

5. Minerals – Support bone health, nerve function, and other vital processes. Found in foods like leafy greens, dairy, and meat. 

6. Water – Essential for digestion, circulation, and temperature regulation.

● Introduction: Project 

The project "Nutrients in Foods" utilizes Arduino and Scratch programming to identify nutrients present in food samples using an LED-based indication system. A Bluetooth module is used to wirelessly send commands to the Arduino, allowing users to toggle LEDs corresponding to specific nutrients. This interactive method provides an engaging way to learn about nutrient composition in different foods. 

2. Components Required 

To build this project, the following hardware and software components are required: Hardware: 

● Arduino Uno

● Bluetooth Module (HC-05) 

● LEDs (Red, Green, Blue, Yellow, White) ● Breadboard 

● Jumper Wires

● Power Supply (9V Battery or USB cable) ● USB 2.0 Cable 

Software: 

● Scratch (with Arduino Extension)

● Arduino ID 

● Bluetooth Serial App (for sending commands) 

3. Circuit Diagram and Connections 

The LED pins are connected to the Arduino as follows: 

LED NO in Arduino	NUTRIENTS  NAME
4	Carbohydrate
5	Lipids
6	Lipids
7	Protein
8	Protein
9	Vitamins
10  11	minerals  minerals

12 Carbohydrate

13

minerals

The Bluetooth module (HC-05) is connected as follows

Bluetooth  Pin	Connected to  Arduino
VCC	5V
GND	GND
TXD	RX (Pin 10)
RXD	TX (Pin 11)

4. Working Procedure 

1. Upload the Scratch-based Arduino code to the board. 

2. Pair the Bluetooth module with a mobile phone. 

3. Use a Bluetooth Serial App to send specific commands. 

4. Based on the received command, the Arduino will turn on the corresponding LED, indicating the nutrient type in the food sample. 

5. The user can turn off the LED manually via Bluetooth commands.

5. Conclusion 

This project demonstrates how Arduino, Scratch, and Bluetooth technology can be used to build an interactive nutrient identification system. By using LEDs as indicators, users can understand food composition in an engaging and practical way. The project can be expanded further by integrating sensors to detect nutrient levels automatically.