feat(keyboard): release v0.3.0 (check changelog in readme)

Author: leeebo

examples/keyboard/README.md

@@ -8,6 +8,7 @@ The ESP-KeyBoard project is a keyboard project using the ESP32-S3, supporting N-
 * Supports low-power key scanning
 * Supports USB 1K report rate
 * Supports BLE 125Hz report rate
+* Supports BLE battery level reporting
 * Supports local lighting control with over 40 types
 * Supports `Windows 11` dynamic lighting control
 
@@ -78,6 +79,11 @@ Note: keyboard_rgb_martix comes from the **QMK** project. Due to the use of the
 
 ### Change LOG
 
+* v0.3.0 - 2025-08-04
+
+  * Added BLE battery level reporting with ADC-based battery monitoring.
+  * Improved battery capacity estimation using resistor voltage divider circuit.
+
 * v0.2.2 - 2024-11-21
 
   * Added support for waking up a PC from sleep mode (remote wakeup).

examples/keyboard/README_cn.md

@@ -8,6 +8,7 @@ ESP-KeyBoard 项目是使用 ESP32-S3 的键盘项目，支持全键无冲，USB
     * 支持按键扫描低功耗
     * 支持 USB 1K 回报率
     * 支持 BLE 125hz 回报率
+    * 支持 BLE 电池电量报告
     * 支持本地灯效控制 40+ 种
     * 支持 `Windows 11` 动态灯效控制
 
@@ -78,6 +79,11 @@ Note: keyboard_rgb_martix 来自 **QMK** 工程，由于使用 GPL 协议，如
 
 #### Change LOG
 
+* v0.3.0 - 2025-8-4
+
+  * 增加了基于 ADC 的 BLE 电池电量监控和报告功能
+  * 改进了使用电阻分压电路的电池容量估算
+
 * v0.2.2 - 2024-11-21
 
   * 支持唤醒睡眠状态下的 PC (remote wakeup)

examples/keyboard/main/battery_adc.c

@@ -4,15 +4,11 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include <driver/adc.h>
-
-#include "battery_adc.h"
-
-#include "ble_hid.h"
 #include <esp_log.h>
 #include <esp_adc/adc_oneshot.h>
-
+#include "ble_hid.h"
 #include "bsp/esp-bsp.h"
+#include "battery_adc.h"
 #include "adc_battery_estimation.h"
 
 static const char *TAG = "BATTERY-ADC";

examples/keyboard/main/idf_component.yml

@@ -1,4 +1,4 @@
-version: 0.2.2
+version: 0.3.0
 dependencies:
   idf: '>=5.2'
   espressif/tinyusb: