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 ...

If you don’t have an oscilloscope you’d be surprised how many times you find yourself needing one. But if you have an Arduino on hand, the next time you might be able to get by with thi… ...

To make your own Arduino based oscilloscope, follow these four steps.Your board will be able to use up to four input channels at frequencies up to 7 kHz and as many as seven input channels at 4 kHz.

Makers, hobbyists and developers that are looking for an ultra Low cost 4 Channel 300KS/s Oscilloscope that is both Arduino compatible and been specifically designed to complement the DIY test bench.