Method:Openwrt lua with serial port communication
Yes,as the caption show,I want to study how to find a way to make DB120's serial port communication with web page.Openwrt choose the luci web page as the default.So lua language is the first gap to breakthrough.A simple i.e given as below:
#!/usr/bin/lua
io.output("/dev/ttyS0")
io.write(os.getenv("QUERY_STRING"))
openwrt route:
root@OpenWrt:~# cd /www/
root@OpenWrt:/www# ls
cgi-bin index.html luci-static resources
root@OpenWrt:/www# cat index.html
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="refresh" content="0; URL=/cgi-bin/luci" />
</head>
<body style="background-color: black">
<a style="color: white; text-decoration: none" href="/cgi-bin/luci">LuCI - Lua Configuration Interface</a>
</body>
</html>
