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    很好奇闲鱼上面这个 【双AC108】模块是用来干嘛的,买了三个研究一下。

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    • W
      whycan晕哥 LV 9 last edited by whycan

      【闲鱼】https://m.tb.cn/h.fIG1WDg?tk=8nsd29djGlO「业升电子的闲鱼号,快来关注TA吧~」
      点击链接直接打开

      没有PY关系,也不知道能不能用,请谨慎考虑再购买。
      没有PY关系,也不知道能不能用,请谨慎考虑再购买。
      没有PY关系,也不知道能不能用,请谨慎考虑再购买。

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      • W
        whycan晕哥 LV 9 last edited by


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        • W
          whycan晕哥 LV 9 last edited by

          a71c20da-672c-42ab-90d9-a9a6ea0a1ebe-fc66100060a7e4b66fe6471034b50c8.jpg

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          • W
            whycan晕哥 LV 9 last edited by

            19e8daba-fba1-49ce-8ada-14fea35c8c1e-b6f2c86503828822627a60504e5829e.jpg

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            • aozima
              aozima LV 6 last edited by aozima

              用来做麦克风阵列?看丝印是 (AISPEECH)(思必驰)

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              • W
                whycan晕哥 LV 9 @aozima last edited by

                @aozima
                看架势,应该是麦克风阵列。

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                • W
                  whycan晕哥 LV 9 last edited by whycan

                  17f131cb-bc7f-4b02-b372-88f6fee84e36-image.png

                  /* 外挂 AC108 所使用的 TWI 接口 */
                  &twi0 {
                  clock-frequency = <400000>;
                  pinctrl-0 = <&twi0_pins_a>;
                  pinctrl-1 = <&twi0_pins_b>;
                  pinctrl-names = "default", "sleep";
                  twi_drv_used = <1>;
                  dmas = <&dma 43>, <&dma 43>;
                  dma-names = "tx", "rx";
                  status = "disabled";
                  ac108: ac108@3B {
                  #sound-dai-cells = <0>;
                  compatible = "Allwinner,MicArray_0";
                  device_type = "MicArray_0";
                  reg = <0x3B>;
                  regulator_used = <0x0>;
                  power_voltage = <3300000>;
                  regulator_name = "vcc-3v3";
                  power_gpio_used = <0x0>;
                  reset_gpio_used = <0x0>;
                  twi_bus = <0x1>;
                  pga_gain = <0x1F>;
                  slot_width = <0x20>;
                  lrck_period = <0x80>;
                  ref_pga_used = <0x1>;
                  ref_pga_gain = <0x10>;
                  ref_channel = <0x3>;
                  debug_mode = <0x0>;
                  status = "disabled";
                  };
                  };
                  

                  昨天看文档 D1_Linux_I2S_开发指南.pdf,里面用AC108 codec做参考样例,淘宝搜到的模块都没货,闲鱼刚好有现成的,但是没有任何资料,所以买几个玩一玩。

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                  • xiaowenge
                    DOT小文哥 LV 8 last edited by

                    一个AC108可以接4个模拟麦克风,两个就可以接8个,可以用来做一个8麦克风的阵列,8麦克风收音,想想就刺激

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                    • W
                      whycan晕哥 LV 9 @whycan last edited by

                      @whycan
                      果然是四路麦克风阵列,并且没有喇叭接口:

                      http://www.x-powers.com/en.php/Info/product_detail/article_id/41

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