From ed16722cb53b3a91827ee9434ac0bb6fdfa28548 Mon Sep 17 00:00:00 2001
From: vany5921 <908744431@qq.com>
Date: Thu, 20 Feb 2020 21:40:18 +0800
Subject: [PATCH] update core information

---
 docs/en/core/basic.md    | 1 +
 docs/zh_CN/core/basic.md | 1 +
 2 files changed, 2 insertions(+)

diff --git a/docs/en/core/basic.md b/docs/en/core/basic.md
index e2614aa4..477eedbd 100644
--- a/docs/en/core/basic.md
+++ b/docs/en/core/basic.md
@@ -195,6 +195,7 @@ Unfortunatly, PortA(red) can not be used as analog read in. It refers to GPIO 21
 
 - ADC1(8 channels atteched to GPIOs 32-39)
 - ADC2(10 channels atteched to GPIOs 0，2，4，12-15，25-27)
+- ESP32 has two 8-bit DAC (digital to analog converter) channels, connected to GPIO25 (Channel 1) and GPIO26 (Channel 2)
 
 To use AD read function : 
 1, Use Dupont cable refers to the pins on the side which can be used as an AD channel.
diff --git a/docs/zh_CN/core/basic.md b/docs/zh_CN/core/basic.md
index 13f9c443..d5996f6d 100644
--- a/docs/zh_CN/core/basic.md
+++ b/docs/zh_CN/core/basic.md
@@ -190,6 +190,7 @@ M5Stack Basic 由两个可分离部分堆叠组成. 顶部放置了电路板，
 
 - ADC1(8 通道 GPIO 32-39)
 - ADC2(10 通道 GPIO 0，2，4，12-15，25-27)
+- 2个8-bit DAC通道, GPIO25 (通道1) 和 GPIO26 (通道2)
 
 使用AD读取功能:
 1，使用杜邦线连接机身侧面的能够AD转换的引脚.