GSM遥控开关,发送一条短信“open”到指定号码，被控制的电器开始工作；发送一条短信“close”到指定号码，被控制电器停止工作； -GSM remote control switch, send a message " open" to the specified number of electrical appliances to be controlled to work send a message " close" to the specif

短信远程控制LED，可自行进行程序改装用于远程控制其他电器-SMS Remote Control LED, can be programmed to control other appliances make alterations