Temperature Monitoring & Alert System

Designed a thermistor-based temperature system that triggers an LED when exceeding 80°F.

We created a project to drive two 7-segment displays using an Arduino, showcasing how to control digital outputs with an analog joystick input.

Project Overview:
This project involves using an analog joystick to control two 7-segment displays via an Arduino. The joystick's X-axis input is read by the Arduino, which converts the analog signal into two 4-bit numbers. These numbers are then output to the 7-segment displays, showing values from 00 to 99.

Key Components:
- Arduino microcontroller
- Analog joystick
- Two 7-segment displays
- Resistors
- Breadboard and jumper wires

Key Features:
- Real-time control of 7-segment displays using a joystick
- ADC conversion for precise analog input reading
- 4-bit digital output to drive 7-segment displays

Arduino Code


            #define sensorPin A0
            int pin12 = 12;
            
            
            void setup() {
              // put your setup code here, to run once:
              pinMode(pin12, OUTPUT);
              Serial.begin(9600);
            }
            
            
            void loop() {
              // put your main code here, to run repeatedly:
              int reading = analogRead(sensorPin);
            
            
              float voltage = reading * (5.0 / 1024.0);
            
            
              float temperatureC = (voltage - 0.5) * 100;
            
            
              Serial.print("Temperature: ");
              Serial.print(temperatureC);
              Serial.print("\xC2\xB0");
              Serial.print("C | ");
            
            
              float temperatureF = (temperatureC * 9.0 / 5.0) + 32;
              Serial.print(temperatureF);
              Serial.print("\xC2\xB0");
              Serial.print("F");
            
            
              if(temperatureF > 78){
                digitalWrite(pin12, HIGH);
              } else if(temperatureF <= 78){
                digitalWrite(pin12, LOW);
              }
             Serial.println("\n");            
              delay(1000);
            }

Neil Juanillo