Wearable Computer with Temperature and Distance Sensors

This guide will help you create a wearable computer system with temperature and distance sensors. The system will measure temperature and distance, display the data on a small screen, and provide real-time feedback to the user.

Components Required

• Microcontroller (e.g., Arduino Nano or ESP32)
• Temperature sensor (e.g., DHT11 or DS18B20)
• Distance sensor (e.g., HC-SR04)
• Small LCD or OLED display
• Connecting wires and breadboard
• Power supply (e.g., battery)

Setting Up the Hardware

Follow these steps to set up the hardware:

1. Connect the Sensors to the Microcontroller

   Connect the temperature sensor (DHT11 or DS18B20) and the distance sensor (HC-SR04) to the microcontroller. Use a breadboard and jumper wires for the connections.

2. Attach the Display

   Connect the LCD or OLED display to the microcontroller to visualize the sensor data. Ensure the display is properly interfaced with the microcontroller.

3. Power the System

   Use a battery or other power source to power the microcontroller and sensors. Ensure the power supply is sufficient for the entire setup.

Programming the Microcontroller

Use the appropriate IDE (e.g., Arduino IDE) to write the code for reading sensor data and displaying it on the screen. Here’s a basic outline:

                #include <DHT.h>
                #include <LiquidCrystal.h>

                #define DHTPIN 2
                #define DHTTYPE DHT11

                DHT dht(DHTPIN, DHTTYPE);
                LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

                #define TRIGPIN 9
                #define ECHOPIN 10

                void setup() {
                lcd.begin(16, 2);
                dht.begin();
                pinMode(TRIGPIN, OUTPUT);
                pinMode(ECHOPIN, INPUT);
                }

                void loop() {
                // Temperature and humidity
                float temperature = dht.readTemperature();
                float humidity = dht.readHumidity();

                // Distance
                digitalWrite(TRIGPIN, LOW);
                delay(2);
                digitalWrite(TRIGPIN, HIGH);
                delay(10);
                digitalWrite(TRIGPIN, LOW);
                long duration = pulseIn(ECHOPIN, HIGH);
                float distance = (duration / 2) * 0.0344;

                // Display data
                lcd.setCursor(0, 0);
                lcd.print("Temp: ");
                lcd.print(temperature);
                lcd.print(" C");

                lcd.setCursor(0, 1);
                lcd.print("Dist: ");
                lcd.print(distance);
                lcd.print(" cm");

                delay(2000);
                }
            

This code reads temperature and distance data from the sensors and displays it on the LCD screen.

Testing and Calibration

After uploading the code, test the system to ensure all components are working correctly. Check the display for accurate readings and calibrate the sensors if necessary.