/Function_Generator_STC

使用STC单片机自制波形发生器 / DIY Function Generator with STC MCU

Primary LanguageCMIT LicenseMIT

Function_Generator_STC

使用STC单片机自制波形发生器 / DIY Function Generator with STC MCU image

Specification

  • Output: Single Channel
  • Square Waveform Frequency: 1Hz~2MHz
  • Sine Waveform Frequency: 1Hz~10kHz
  • Amplitude: VCC, about 5V
  • Load ability: Not available
  • MCU: STC15W4K32S4 @24MHz
  • Display: LCD1602
  • Controller: EC11 Encoder

Parts List

image

  • MCU: STC15W4K32S4 x 1
  • Display: LCD1602 x 1
  • Row Pin Female:
    • 16-Pin x 1
    • 2-Pin x 1
  • Potentiometer:
    • 10kΩ x 1
    • 200kΩ x 1
    • 500Ω x 1
  • IC Socket 40-Pin x 1
  • Inductor 1mH x 1
  • Capacitor:
    • 220nF x 1
    • 10nF x 1
    • 47uF x 1
  • EC11 Encoder x 1
  • Lithium Polymer Battery x 1
  • 5V booster x 1
  • Terminal 2-Pin x 2
  • Push Switch x 1
  • Capacitor 1uF(optional) x 1

Circuit

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Interface:

Bottom left shows the type of waveform(Square/Sine) and output status(ON/OFF)

  • F: Frequency
  • D: Duty of Square Waveform
  • CD: Clock Division Coefficient (For information only)
  • P: PWM frequency for generating Sine Waveform (For information only)
  • Pt: Number of points for generating Sine Waveform (For information only)

Operations:

  • Single Click Encoder: Switch Frequency and Duty in Square Waveform Interface
  • Double Click Encoder: Start/Stop Signal Output
  • Long Press Encoder: Switch between Square Waveform/Sine Waveform/Voltage Information
  • Rotate Encoder: Adjust Parameters