查看“Microduino Digital Oscilloscope”的源代码

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==Purpose==

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

==Source==

From: http://www.arduino.cn/thread-3703-1-1.html

==Equipment==

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|Module||Number||Function
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|[[Microduino-Core]]||1||Core board 
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|[[Microduino-USBTTL]] ||1||Program download 
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|[[Microduino-Cube-S1]] ||1||For OLED connection   
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|[[Microduino-OLED]] ||1||For display 
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*Other Equipment 
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|Electrolytic Condenser（100μ 25V）||One
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|Breadboard jumper||One box 
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|micro usb cable||One 
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|Button||One 
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|Potentiometer（50k）||One 
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|Breadboard||One 
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==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==

[[File:MicroduinoDigitalOscilloscopeSechmatic.png|600px|center|thumb]]

==Program==

[[https://github.com/Microduino/Microduino_Tutorials/tree/master/Microduino_Advanced_Tutorial/MicroduinoOscilloscope MicroduinoOscilloscope]]

==Debugging==

Step 1: Build the circuit according to the schematic, as follows: 
[[File:MicroduinoDigitalOscilloscopeConnection.png|600px|center|thumb]]
Step 2: Download the code, compile and run initial screen: 
[[File:MicroduinoDigitalOscilloscope1.png|600px|center|thumb]]
[[File:MicroduinoDigitalOscilloscope2.png|600px|center|thumb]]

Step 3: Just use sensing point to contact signal and input circuit, you will see waveform displayed on OLED: 
[[File:MicroduinoDigitalOscilloscope3.png|600px|center|thumb]]

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==

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