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 demonstrates how to control a common cathode Tricolor (RGB) LED using an Arduino. The LED is programmed to cycle through its primary colors—red, green, and blue. A push button is then ...