Put a resistor inline with the Arduino and monitor the voltage drop across the resistor with the scope. When the chip is working hard, it consumes more current, and code sections that take longer ...

Posted in Arduino Hacks, Tool Hacks Tagged arduino nano, diy oscilloscope, dso, frequency counter, signal generator ...

Learn how to create a simple heart rate monitor using an Arduino Pro Mini, PulseSensor, and OLED display. This beginner-friendly project is perfect for learning basic electronics, sensors, and ...