krlnokrl/arduino-leonardo-oscilloscope

Yet another Arduino Based oscilloscope

Arduino-Leonardo-Oscilloscope

Yet another Arduino Based oscilloscope

Installation

Upload the Arduino code to your arduino leonardo
Install processing and run the processing code
you might need to modify oscilloscope_gui.pde:20 : Serial.list()[X] to your Arduino serial port

Usage

In the processing scope window press:

• T for single trigger
• O for triggering once on edge (r/f)
• R for setting rising edge threshold
• F for setting falling edge threshold
• C for continuous triggering on edge
• S to stop continuous trigger
• +-/* for zooming in/out on voltage/time axis

Performance

20 μs/sample
1024 samples/trigger
~8bit resolution

Arduino zero code

The arduino zero(SAMD21) improved code
4 μs/sample
2048 samples/trigger
~10bit resolution

Demo

Samd21 measuring a 5v 976Hz PWM signal trough a 1/2 voltage divider