Introduction
This experiment uses a pulse sensor to monitor heartbeat rates. The sensor detects pulse signals and can be used in health-monitoring applications.
Components Needed
- Pulse Sensor
- Arduino (e.g., Uno, Nano)
- Jumper wires
Circuit Setup
- Connect the VCC pin of the pulse sensor to the 5V pin on the Arduino.
- Connect the GND pin to the GND pin on the Arduino.
- Connect the output pin of the pulse sensor to an analog input pin (e.g., A0) on the Arduino.
Make sure the sensor is securely attached to your finger for accurate readings.
Code for Pulse Monitoring
Upload the following code to your Arduino to read the pulse data:
const int pulsePin = A0; // Pin connected to the pulse sensor
int pulseValue = 0;
void setup() {
Serial.begin(9600); // Start serial communication
}
void loop() {
pulseValue = analogRead(pulsePin); // Read pulse sensor
Serial.println(pulseValue); // Output the value to the serial monitor
delay(100);
}
Explanation
The pulse sensor detects the tiny electrical signals caused by the heart pumping blood. The Arduino reads the signal and prints it to the serial monitor. The values correspond to the heartbeat rate.
Troubleshooting
- If no pulse is detected, ensure the sensor is securely attached to your finger and check the wiring.
- If the readings are inconsistent, check the sensor placement and adjust the sensitivity in the code if needed.