pinout.json

{
  "board": {
    "name": "Waveshare ESP32-S3 Audio Board",
    "mcu": "ESP32-S3R8",
    "variant": "esp32s3",
    "board_id": "esp32-s3-devkitc-1",
    "flash": "16MB",
    "flash_mode": "QIO",
    "flash_speed": "80MHz",
    "psram": "8MB",
    "psram_mode": "octal",
    "psram_speed": "80MHz",
    "sram": "512KB",
    "rom": "384KB",
    "wifi": "2.4GHz 802.11 b/g/n",
    "bluetooth": "5 (LE)",
    "framework": "ESP-IDF"
  },
  "i2c": {
    "scl": "GPIO10",
    "sda": "GPIO11",
    "frequency": "100kHz",
    "devices": [
      {
        "name": "ES8311 Audio DAC",
        "address": 24
      },
      {
        "name": "ES7210 Audio ADC",
        "address": 64
      },
      {
        "name": "TCA9555 I/O Expander",
        "address": 32
      },
      {
        "name": "PCF85063 RTC",
        "address": 81
      }
    ]
  },
  "i2s": {
    "mclk": "GPIO12",
    "bclk": "GPIO13",
    "lrclk": "GPIO14",
    "din": "GPIO15",
    "dout": "GPIO16"
  },
  "audio": {
    "adc": {
      "chip": "ES7210",
      "type": "4-channel audio ADC",
      "i2c_address": 64,
      "bits_per_sample": 16,
      "sample_rate": 16000
    },
    "dac": {
      "chip": "ES8311",
      "type": "Low-power mono audio codec",
      "i2c_address": 24,
      "bits_per_sample": 16,
      "sample_rate": 16000
    },
    "amplifier": {
      "chip": "NS4150B",
      "type": "Mono Class-D speaker amplifier",
      "enable_pin": {
        "io_expander": "TCA9555",
        "pin": 8,
        "active_high": true
      }
    }
  },
  "led_ring": {
    "type": "WS2812B-0807",
    "gpio": "GPIO38",
    "num_leds": 7,
    "color_order": "GRB"
  },
  "buttons": {
    "boot": {
      "gpio": "GPIO0",
      "active_low": true,
      "note": "Standard ESP32 boot button"
    },
    "key1": {
      "io_expander": "TCA9555",
      "pin": 10,
      "active_low": true
    },
    "key2": {
      "io_expander": "TCA9555",
      "pin": 10,
      "active_low": true
    },
    "key3": {
      "io_expander": "TCA9555",
      "pin": 11,
      "active_low": true
    }
  },
  "rtc": {
    "chip": "PCF85063",
    "i2c_address": 81
  },
  "battery": {
    "adc_pin": "GPIO8"
  },
  "usb": {
    "type": "USB-C",
    "d_minus": "GPIO19",
    "d_plus": "GPIO20",
    "note": "When EXIO7 is LOW, USB is unavailable"
  },
  "lcd": {
    "cs": "GPIO3",
    "sclk": "GPIO4",
    "backlight": "GPIO5",
    "sda0": "GPIO9",
    "sda1": "GPIO8",
    "sda2": "GPIO7",
    "sda3": "GPIO6",
    "reset": {
      "io_expander": "TCA9555",
      "pin": 0
    },
    "touch_reset": {
      "io_expander": "TCA9555",
      "pin": 1
    },
    "touch_interrupt": {
      "io_expander": "TCA9555",
      "pin": 2
    },
    "compatible_displays": [
      "1.47\" JD9853",
      "1.85\" ST77916 (QSPI)",
      "2\" ST7789",
      "2.8\" ST7789",
      "3.5\" ST7796"
    ]
  },
  "sd_card": {
    "mode": "SDMMC 1-bit",
    "clk": "GPIO40",
    "cmd": "GPIO42",
    "d0": "GPIO41",
    "cs": {
      "io_expander": "TCA9555",
      "pin": 3
    }
  },
  "camera": {
    "interface": "DVP",
    "compatible": [
      "OV2640",
      "OV5640"
    ],
    "xclk": "GPIO43",
    "pclk": "GPIO44",
    "vsync": "GPIO21",
    "href": "GPIO1",
    "d0": "GPIO2",
    "d1": "GPIO17",
    "d2": "GPIO18",
    "d3": "GPIO39",
    "d4": "GPIO45",
    "d5": "GPIO46",
    "d6": "GPIO47",
    "d7": "GPIO48",
    "siod": "GPIO11",
    "sioc": "GPIO10",
    "power_down": {
      "io_expander": "TCA9555",
      "pin": 5
    },
    "camera_select": {
      "io_expander": "TCA9555",
      "pin": 6
    },
    "hardware_reset": {
      "io_expander": "TCA9555",
      "pin": 7
    }
  },
  "io_expander": {
    "chip": "TCA9555PWR",
    "i2c_address": 32,
    "port0": {
      "pin0": "LCD Reset",
      "pin1": "Touch Panel Reset",
      "pin2": "Touch Panel Interrupt",
      "pin3": "SD Card CS",
      "pin4": "Reserved",
      "pin5": "Camera Power Down (active low)",
      "pin6": "Camera Select (HIGH=Tx/Rx, LOW=USB)",
      "pin7": "Camera/USB GPIO mux control"
    },
    "port1": {
      "pin8": "PA_CTRL - Speaker amplifier enable",
      "pin9": "Key1 button (active low)",
      "pin10": "Key2 button (active low)",
      "pin11": "Key3 button (active low)",
      "pin12": "Expansion header",
      "pin13": "Expansion header",
      "pin14": "Expansion header",
      "pin15": "Expansion header"
    }
  },
  "power": {
    "input": "USB 5V Type-C",
    "regulator": "MP1605GTF-Z 3.3V/2A DC-DC buck",
    "battery_connector": "MX1.25 2-pin, 3.7V lithium",
    "battery_switch": true,
    "rtc_battery_header": true
  }
}