An Arduino Nano-based pulse oximeter and heart rate monitor using the MAX30102 sensor and a 0.96” OLED display. Displays SpO₂ and BPM in real-time, with push-button control and buzzer alerts. Compact, ...

This project measures real-time voltage and current from a DC load using an ACS712 Hall-effect current sensor and an analog voltage divider connected to an Arduino. The data is read by the Arduino’s ...