单片机波形发生器

只看该作者 · 2020-12-21 13:05

开源的51单片机波形发生器，分享的是B站老刘的作品
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 1Display: LCD1602 x 1Row 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 1Inductor 1mH x 1Capacitor:

220nF x 1
10nF x 1
47uF x 1

EC11 Encoder x 1Lithium Polymer Battery x 15V booster x 1Terminal 2-Pin x 2Push Switch x 1Capacitor 1uF(optional) x 1Interface:
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