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[硬件] esp32 c3 PWM 通道不够用，能用软件模拟吗？

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我尝试用 c3 给顽皮龙 D12 重新做了一个控制板，其中电机和舵机占了 3 个 pwm 通道。还要 4 个 pwm 输出来控制 LED 灯，但是硬件资源就 6 个。精度要求不高想能不能用软件来模拟输出。听说能用定时器来做，但是苦于没找到资料。问问各位老哥该咋整。

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