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咪头声音采集1
- 咪头采集信号进过lm358放大后输入到stm32ad采集，然后通过da输出连接到lm358放大电路后驱动喇叭发出声音(The acquisition signal of the head is amplified by lm358 and then input to the stm32ad to collect, and then connected to the lm358 amplifying circuit through the Da output to drive the horn t