Support for DIY AI Watch HU-087 kit

main/CMakeLists.txt

@@ -550,6 +550,10 @@ elseif(CONFIG_BOARD_TYPE_AIPI_LITE)
     set(BUILTIN_TEXT_FONT font_puhui_basic_14_1)
     set(BUILTIN_ICON_FONT font_awesome_14_1)
     set(DEFAULT_EMOJI_COLLECTION twemoji_32)
+elseif(CONFIG_BOARD_TYPE_HU_087)
+    set(BOARD_TYPE "hu-087")
+    set(BUILTIN_TEXT_FONT font_puhui_basic_14_1)
+    set(BUILTIN_ICON_FONT font_awesome_14_1)
 endif()
 
 file(GLOB BOARD_SOURCES

main/Kconfig.projbuild

@@ -435,6 +435,9 @@ choice BOARD_TYPE
     config BOARD_TYPE_AIPI_LITE
         bool "AIPI-Lite"
         depends on IDF_TARGET_ESP32S3
+    config BOARD_TYPE_HU_087
+        bool "HU-087"
+        depends on IDF_TARGET_ESP32S3
 endchoice
 
 choice
@@ -468,7 +471,7 @@ choice ESP_S3_LCD_EV_Board_Version_TYPE
 endchoice
 
 choice DISPLAY_OLED_TYPE
-    depends on BOARD_TYPE_BREAD_COMPACT_WIFI || BOARD_TYPE_BREAD_COMPACT_ML307 || BOARD_TYPE_BREAD_COMPACT_ESP32
+    depends on BOARD_TYPE_BREAD_COMPACT_WIFI || BOARD_TYPE_BREAD_COMPACT_ML307 || BOARD_TYPE_BREAD_COMPACT_ESP32 || BOARD_TYPE_HU_087
     prompt "OLED Type"
     default OLED_SSD1306_128X32
     help

main/boards/hu-087/README.md

@@ -0,0 +1,7 @@
+
+[product](https://fr.aliexpress.com/item/1005010207331462.html)
+
+One of the cheapest kit in a watch form factor.
+
+## Programming ##
+Before assembling the product, unglue the battery from the board to access the programming header. You'll need a ESP32 programming dongle with control of the EN and IO0 pins. The USB connector is not wired to the USB pins of the ESP32-S3 USB interface and can only be used for charging.

main/boards/hu-087/config.h

@@ -0,0 +1,28 @@
+#ifndef _BOARD_CONFIG_H_
+#define _BOARD_CONFIG_H_
+
+#include <driver/gpio.h>
+
+#define AUDIO_INPUT_SAMPLE_RATE  16000
+#define AUDIO_OUTPUT_SAMPLE_RATE 24000
+
+#define AUDIO_I2S_MIC_GPIO_WS   GPIO_NUM_4
+#define AUDIO_I2S_MIC_GPIO_SCK  GPIO_NUM_5
+#define AUDIO_I2S_MIC_GPIO_DIN  GPIO_NUM_6
+#define AUDIO_I2S_SPK_GPIO_DOUT GPIO_NUM_7
+#define AUDIO_I2S_SPK_GPIO_BCLK GPIO_NUM_15
+#define AUDIO_I2S_SPK_GPIO_LRCK GPIO_NUM_16
+#define AUDIO_I2S_SPK_GPIO_CTLR  GPIO_NUM_17
+
+
+#define TOUCH_BUTTON_GPIO       GPIO_NUM_18
+
+#define DISPLAY_SDA_PIN GPIO_NUM_41
+#define DISPLAY_SCL_PIN GPIO_NUM_42
+#define DISPLAY_WIDTH   128
+#define DISPLAY_HEIGHT  64
+
+#define DISPLAY_MIRROR_X true
+#define DISPLAY_MIRROR_Y true
+
+#endif // _BOARD_CONFIG_H_

main/boards/hu-087/config.json

@@ -0,0 +1,9 @@
+{
+    "target": "esp32s3",
+    "builds": [
+        {
+            "name": "hu-087",
+            "sdkconfig_append": []
+        }
+    ]
+}

main/boards/hu-087/hu_087_board.cc

@@ -0,0 +1,152 @@
+#include <driver/i2c_master.h>
+#include <esp_lcd_panel_ops.h>
+#include <esp_lcd_panel_vendor.h>
+#include <esp_log.h>
+#include <wifi_station.h>
+
+#include "application.h"
+#include "assets/lang_config.h"
+#include "boards/common/wifi_board.h"
+#include "button.h"
+#include "codecs/no_audio_codec.h"
+#include "config.h"
+#include "display/oled_display.h"
+#include "lamp_controller.h"
+#include "led/single_led.h"
+#include "mcp_server.h"
+#include "system_reset.h"
+
+#define TAG "Hu087Board"
+
+class Hu087Board : public WifiBoard {
+ private:
+  i2c_master_bus_handle_t display_i2c_bus_;
+  esp_lcd_panel_io_handle_t panel_io_ = nullptr;
+  esp_lcd_panel_handle_t panel_ = nullptr;
+  Display* display_ = nullptr;
+  Button touch_button_;
+
+  void InitializeDisplayI2c() {
+    i2c_master_bus_config_t bus_config = {
+        .i2c_port = (i2c_port_t)0,
+        .sda_io_num = DISPLAY_SDA_PIN,
+        .scl_io_num = DISPLAY_SCL_PIN,
+        .clk_source = I2C_CLK_SRC_DEFAULT,
+        .glitch_ignore_cnt = 7,
+        .intr_priority = 0,
+        .trans_queue_depth = 0,
+        .flags =
+            {
+                .enable_internal_pullup = 1,
+            },
+    };
+    ESP_ERROR_CHECK(i2c_new_master_bus(&bus_config, &display_i2c_bus_));
+  }
+
+  void InitializeSsd1306Display() {
+    // SSD1306 config
+    esp_lcd_panel_io_i2c_config_t io_config = {
+        .dev_addr = 0x3C,
+        .on_color_trans_done = nullptr,
+        .user_ctx = nullptr,
+        .control_phase_bytes = 1,
+        .dc_bit_offset = 6,
+        .lcd_cmd_bits = 8,
+        .lcd_param_bits = 8,
+        .flags =
+            {
+                .dc_low_on_data = 0,
+                .disable_control_phase = 0,
+            },
+        .scl_speed_hz = 400 * 1000,
+    };
+
+    ESP_ERROR_CHECK(
+        esp_lcd_new_panel_io_i2c_v2(display_i2c_bus_, &io_config, &panel_io_));
+
+    ESP_LOGI(TAG, "Install SSD1306 driver");
+    esp_lcd_panel_dev_config_t panel_config = {};
+    panel_config.reset_gpio_num = -1;
+    panel_config.bits_per_pixel = 1;
+
+    esp_lcd_panel_ssd1306_config_t ssd1306_config = {
+        .height = static_cast<uint8_t>(DISPLAY_HEIGHT),
+    };
+    panel_config.vendor_config = &ssd1306_config;
+
+    ESP_ERROR_CHECK(
+        esp_lcd_new_panel_ssd1306(panel_io_, &panel_config, &panel_));
+    ESP_LOGI(TAG, "SSD1306 driver installed");
+
+    // Reset the display
+    ESP_ERROR_CHECK(esp_lcd_panel_reset(panel_));
+    if (esp_lcd_panel_init(panel_) != ESP_OK) {
+      ESP_LOGE(TAG, "Failed to initialize display");
+      display_ = new NoDisplay();
+      return;
+    }
+
+    // Set the display to on
+    ESP_LOGI(TAG, "Turning display on");
+    ESP_ERROR_CHECK(esp_lcd_panel_disp_on_off(panel_, true));
+
+    display_ = new OledDisplay(panel_io_, panel_, DISPLAY_WIDTH, DISPLAY_HEIGHT,
+                               DISPLAY_MIRROR_X, DISPLAY_MIRROR_Y);
+  }
+
+  void initializeAmpCtrl() {
+    gpio_config_t io_conf = {
+        .pin_bit_mask = (1ULL << AUDIO_I2S_SPK_GPIO_CTLR),  // Select GPIO 2
+        .mode = GPIO_MODE_OUTPUT,                           // Set as output
+        .pull_up_en = GPIO_PULLUP_ENABLE,                   // Disable pull-up
+        .pull_down_en = GPIO_PULLDOWN_DISABLE,              // Disable pull-down
+        .intr_type = GPIO_INTR_DISABLE  // Disable interrupts
+    };
+    gpio_config(&io_conf);
+    gpio_set_level(AUDIO_I2S_SPK_GPIO_CTLR, 1);
+  };
+
+  void InitializeButtons() {
+    touch_button_.OnClick([this]() {
+      auto& app = Application::GetInstance();
+      if (app.GetDeviceState() == kDeviceStateStarting &&
+          !WifiStation::GetInstance().IsConnected()) {
+        ResetWifiConfiguration();
+      }
+      app.ToggleChatState();
+    });
+
+    touch_button_.OnLongPress([this]() {
+      auto codec = GetAudioCodec();
+      auto volume = codec->output_volume() + 10;
+      if (volume > 100) {
+        volume = 100;
+      }  // Need to implement logic to lower volume
+      codec->SetOutputVolume(volume);
+      GetDisplay()->ShowNotification(Lang::Strings::VOLUME +
+                                     std::to_string(volume));
+    });
+  }
+
+ public:
+  Hu087Board() : touch_button_(TOUCH_BUTTON_GPIO) {
+    InitializeDisplayI2c();
+    InitializeSsd1306Display();
+    InitializeButtons();
+    initializeAmpCtrl();  // Could control the amp ctrl pin throught voice
+                          // detection i guess
+  }
+
+  virtual AudioCodec* GetAudioCodec() override {
+    static NoAudioCodecSimplex audio_codec(
+        AUDIO_INPUT_SAMPLE_RATE, AUDIO_OUTPUT_SAMPLE_RATE,
+        AUDIO_I2S_SPK_GPIO_BCLK, AUDIO_I2S_SPK_GPIO_LRCK,
+        AUDIO_I2S_SPK_GPIO_DOUT, I2S_STD_SLOT_RIGHT, AUDIO_I2S_MIC_GPIO_SCK,
+        AUDIO_I2S_MIC_GPIO_WS, AUDIO_I2S_MIC_GPIO_DIN, I2S_STD_SLOT_RIGHT);
+    return &audio_codec;
+  }
+
+  virtual Display* GetDisplay() override { return display_; }
+};
+
+DECLARE_BOARD(Hu087Board);