Function_Generator_STC

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

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

• 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

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