add c plus

docs/en/atom/atomecho.md

@@ -10,10 +10,15 @@
 
 ## Product Features
 
+- Light and small
 - Based on esp32, Support A2DP, BLE 4.0
 - IEEE 802.11b/g/n
 - Built-in microphone and speaker
 - RGB LED status display  indication
+- GROVE extension interface
+- Record and playback
+- Programmable key
+
 
 ## Include
 

docs/en/core/m5stickc_plus.md

@@ -6,7 +6,7 @@
 
 ## Description
 
-**M5StickC Plus** is powered by ESP32.It's an upgrade product of [M5StickC](#/en/core/m5stickc.md).Based on M5StickC, a buzzer is added and the screen is upgraded to a 1.14-inch, 135 * 240 resolution TFT Screen.Compared with the previous display area, the display area is increased by 18.7%, and the battery capacity is 120mAh. Other hardware configurations are the same as M5StickC. It also supports HAT and Unit series products.
+**M5StickC Plus** is powered by ESP32-PICO-D4 with Bluetooth 4.0 and WiFi.It's an upgrade big screen product of [M5StickC](#/en/core/m5stickc.md).The compact body is integrated with rich hardware resources, such as infrared, RTC, microphone, led, IMU, buttons, PMU,etc. Compared with StickC, a buzzer is added and the big screen is upgraded to a 1.14-inch, 135 * 240 resolution LCD Screen.Compared with the previous display area, the display area is increased by 18.7%, and the battery capacity is 120mAh.It also supports HAT and Unit series products.
 
 ## Product Features
 

docs/zh_CN/atom/atomecho.md

@@ -10,10 +10,14 @@
 
 ## 产品特性
 
+- 轻便小巧
 - 基于ESP32,支持A2DP、BLE 4.0
 - IEEE 802.11b/g/n
 - 内置麦克风与扬声器
 - RGB LED状态显示
+- GROVE扩展接口
+- 录音与声音回放
+- 独立可编程按键
 
 ## 包含
 

docs/zh_CN/core/m5stickc_plus.md

@@ -6,7 +6,7 @@
 
 ## 描述
 
-**M5StickC PLUS** 是[M5StickC](#/zh_CN/core/m5stickc.md)的升级产品，在保留原有功能设计基础上加入了蜂鸣器，同时将屏幕升级到1.14寸、135*240分辨率的TFT屏幕，相较之前增加18.7%的显示面积，电池容量达到120mAh，其他硬件配置与M5StickC相同，同样支持HAT与Unit系列产品.
+**M5StickC PLUS** 是[M5StickC](#/zh_CN/core/m5stickc.md)的加大屏幕版本，主控采用ESP32-PICO-D4模组，具备蓝牙4.0与WIFI功能，小巧的机身内部集成了丰富的硬件资源，如红外、RTC、麦克风、LED、IMU、按键、PMU等，在保留原有M5StickC功能的基础上加入了蜂鸣器，同时屏幕尺寸升级到1.14寸、135*240分辨率的TFT屏幕，相较之前的0.96寸屏幕增加18.7%的显示面积，电池容量达到120mAh，接口同样支持HAT与Unit系列产品.
 
 ## 产品特性