From 0b8b883e909c17fc9a70cf41502b9e5363de031e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Javier=20Y=C3=A1=C3=B1ez?= <jyanez747@gmail.com>
Date: Wed, 21 Jan 2015 08:23:06 +0100
Subject: [PATCH] README.md for DHT22 module

---
 lua_modules/dht22/README.md | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 lua_modules/dht22/README.md

diff --git a/lua_modules/dht22/README.md b/lua_modules/dht22/README.md
new file mode 100644
index 00000000..737c04db
--- /dev/null
+++ b/lua_modules/dht22/README.md
@@ -0,0 +1,22 @@
+# DHT22 module
+
+## Example  
+```lua
+PIN = 4 --  data pin, GPIO2
+
+dht22 = require("dht22")
+dht22.read(PIN)
+t = dht22.getTemperature()
+h = dht22.getHumidity()
+
+-- temperature in degrees Celsius  and Farenheit
+print("Temperature: "..(t/10).."."..(t%10).." deg C")
+print("Temperature: "..(9 * t / 50 + 32).."."..(9 * t / 5 % 10).." deg F")
+
+-- humidity
+print("Humidity: "..(h/10).."."..(h%10).."%")
+
+-- release module
+dht22 = nil
+package.loaded["dht22"]=nil
+```