-
-
LPC2103.zip
本设计是基于ARM7微处理器LPC2103为核心,利用双音多频(Dual Tone Multi Frequency,DTMF)信号进行电话按键号码识别。用户可通过电话通信实现对家庭相关电气设备状态的查询和控制,以及电话留言和对留言的提取
-
-
-
-
-
GOERTZEL_c6713.ZIP
this program understands the dtmf tone when you push the number.it detect with goertzel<algorı tm
-
-
cysintercom.zip
... AT89C2051 which has an Program Memory (ROM) of 2 kilobytes.
The DTMF (Dual tone multiple frequency) signals are decoded by the DTMF decoder IC 8870 and its output will be in decimal of the pressed key. The switching functiond are ...
-
cyssms.zip
... ) to another end (designation). This is get achieved by the DTMF technology. It has two sections one for editing the text ... for receiving the text message. The system works on the DTMF technology. (Dual Tone Multiple Frequency).
It involves several steps. ...
-
-