Difference between revisions of "Microduio Digital Oscilloscope"

Purpose

The course will show you how to use Microduino to make a digital oscilloscope.

Source

Equipment

• Other Equipment

Introduction

Here in this example, we’ll introduce a Microduino digital oscilloscope. Main parameters:

 Frequency response：
 10Hz-50KHz
 Power:  5V
 Microduino-OLED display screen: 128x64
 Display area: 96x64
 Message display area: 32x64 (Frequency of testing signal and Vpp.)  
 Way of synchronization: Rising along the trigger  
 Scanning speed: 0.02ms/div~10ms/div (Classified by nine gears according to 1-2-5 carry.) 
 Hold Function: Freeze waveform display and parameters. 

Schematic

Program

[MicroduinoOscilloscope]

Debugging

Step 1: Build the circuit according to the schematic, as follows:

Step 2: Download the code, compile and run initial screen:

Step 3: Just use sensing point to contact signal and input circuit, you will see waveform displayed on OLED:

Step 4: The three keys in the schematic are used for enlarging and reducing the scaleplate of the displayed waveform and served as “OK” button respectively.

Result

Signal waveform can be displayed on OLED.

Video