diff --git a/docs/en/api/gpio.md b/docs/en/api/gpio.md
index 94ebc19f..9e094ada 100644
--- a/docs/en/api/gpio.md
+++ b/docs/en/api/gpio.md
@@ -2,8 +2,6 @@
*Refer to Arduino API of [Arduino](http://www.arduino.cc)*
-*For the sake of convenience, I will focus on things that are closely related to M5Stack*
-
*M5STACK PIN allocation:*
| pin No | Name |allocation|
@@ -92,7 +90,7 @@ Writes the state of the terminal.
| Function argument |Type |Description |
| --- | --- | --- |
| pin | uint8 |pin No |
-| val | uint8 |出力状態(0/1) |
+| val | uint8 |(0/1) |
**Function return value:**
diff --git a/docs/en/atom/atom_socket.md b/docs/en/atom/atom_socket.md
index e93d75c8..a9e15b0c 100644
--- a/docs/en/atom/atom_socket.md
+++ b/docs/en/atom/atom_socket.md
@@ -6,11 +6,11 @@
## Description
-**ATOM Socket** is a smart power socket adapted to ATOM main control. Built-in HLW8032 high-precision energy metering IC, can read the electrical parameters (line voltage, current, active power, apparent power and power factor) of the socket through serial communication. The external jack adopts Japanese standard specifications, and the internal integrated single-circuit relay (AC-220V@10A) is used to control the power on and off of the socket. With the ATOM main control integrated with WIFI&Bluetooth module, the power socket can be easily connected to the network for remote control And energy metering. The extra socket integrates HY2.0-4P interface, which can interact with external equipment (relay signal input, key signal output).
+**ATOM Socket** is a smart power socket adapted to ATOM main control. Built-in HLW8032 high-precision energy metering IC, can read the electrical parameters (line voltage, current, active power, apparent power and power factor) of the socket through serial communication. The external jack adopts Japanese standard specifications, and the internal integrated single-circuit relay (AC-100~120V@10A) is used to control the power on and off of the socket. With the ATOM main control integrated with WIFI&Bluetooth module, the power socket can be easily connected to the network for remote control And energy metering. The extra socket integrates HY2.0-4P interface, which can interact with external equipment (relay signal input, key signal output).
## Product Features
-- Single relay control socket power on and off (220V@10A)
+- Single relay control socket power on and off (100~120V@10A)
- HLW8032 High Precision Energy Metering IC
- Support voltage and current detection power calculation, within 1000:1 dynamic range:
- The measurement error of active power reaches 0.2%
@@ -18,7 +18,7 @@
- The effective voltage measurement error reaches 0.5%
- UART communication (baud: 4800)
- ∑-Δ ADC, high-precision energy metering core
-- Japanese standard jack
+- JP&US standard jack
- HY2.0-4P external control interface
## Includes
@@ -49,7 +49,7 @@
| Relay parameters |
- AC-110V@10A |
+ AC-100~120V@10A |
| Net weight |
diff --git a/docs/zh_CN/api/gpio.md b/docs/zh_CN/api/gpio.md
index b01ee9e0..227bac8c 100644
--- a/docs/zh_CN/api/gpio.md
+++ b/docs/zh_CN/api/gpio.md
@@ -2,8 +2,6 @@
*Refer to Arduino API of [Arduino](http://www.arduino.cc)*
-*为方便起见，我将专注于与M5Stack 密切相关的事情*
-
**M5STACK 引脚排列:**
| pin No | Name |allocation|
diff --git a/docs/zh_CN/atom/atom_socket.md b/docs/zh_CN/atom/atom_socket.md
index 894a7240..0bdc018a 100644
--- a/docs/zh_CN/atom/atom_socket.md
+++ b/docs/zh_CN/atom/atom_socket.md
@@ -6,11 +6,11 @@
## 描述
-**ATOM Socket** 是一款适配ATOM主控的智能电源插座。内嵌HLW8032高精度电能计量IC，通过串口通信能够读取插座进电的相关电气参数(线电压，电流，有功功率，视在功率和功率因数)。外部插孔采用日标规格，内部集成单路继电器(AC-220V@10A)用于控制插座电源通断，搭配集成WIFI&蓝牙模块的ATOM主控，该电源插座能够轻松接入网络，实现远程控制与电能计量。额外插座集成HY2.0-4P接口，能够与外部设备进行交互(继电器信号输入，按键信号输出)。
+**ATOM Socket** 是一款适配ATOM主控的智能电源插座。内嵌HLW8032高精度电能计量IC，通过串口通信能够读取插座进电的相关电气参数(线电压，电流，有功功率，视在功率和功率因数)。外部插孔采用日标规格，内部集成单路继电器(AC-100~120V@10A)用于控制插座电源通断，搭配集成WIFI&蓝牙模块的ATOM主控，该电源插座能够轻松接入网络，实现远程控制与电能计量。额外插座集成HY2.0-4P接口，能够与外部设备进行交互(继电器信号输入，按键信号输出)。
## 产品特性
-- 单路继电器控制插座电源通断(220V@10A)
+- 单路继电器控制插座电源通断(100~120V@10A)
- HLW8032高精度电能计量IC
- 支持电压电流检测功率计算,1000：1的动态范围内：
- 有功功率的测量误差达到0.2%
@@ -18,7 +18,7 @@
- 有效电压的测量误差达到0.5%
- UART通讯(baud:4800)
- ∑-Δ型ADC,高精度的电能计量内核
-- 日标插孔
+- 日标/美标插孔
- HY2.0-4P外部控制接口
## 包含
@@ -49,7 +49,7 @@
| 继电器参数 |
- AC-110V@10A |
+ AC-100~120V@10A |
| 净重 |