From 0c5cea04b096071c448103309795541f7332a3f8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=91=93=E5=96=B5=E9=85=B1?= <i@iotcat.me>
Date: Mon, 8 Apr 2019 23:11:43 +0800
Subject: [PATCH] Update README.md

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index 2b3e3ff..7354eda 100644
--- a/README.md
+++ b/README.md
@@ -46,3 +46,6 @@
 
 ````
 
+## 背景资料
+自豪地引用[**ovo.h**](https://github.com/eeeneko/arduino-ovo)搭建非阻塞Arduino程序框架！
+