Introduction - If you have any usage issues, please Google them yourself
1. Based on STM32 chip design
2. LCD1602 liquid crystal display waveform type and frequency value (0-50khz).
3. Press key to set waveform type and set frequency step value
4. Potentiometer change amplitude 0-5V (2v-4v stable).
5. This design can generate sine wave, sawtooth wave, triangle wave and rectangular wave.
6. There are four indicator lights to indicate which waveform is sent out