Here follow Zabbix templates for Openwrt

"Template Openwrt Mac80211": http://pastebin.com/3iWQq2kc

"Template Openwrt Network": http://pastebin.com/5Jcg7w9j

"Template Openwrt Wifi": http://pastebin.com/uWtWT6C8

"All in one": http://pastebin.com/nQdZM89w

To use these templates you will need this patch (v4) which contain network, wifi and mac80211 discovery/userparams http://pastebin.com/7wdvWnt5