說明
掛斷已建立的調用或在調用響鈴期間。根據調製解調器模式(同步或異步),該方法將返回不同的,請參閱下文了解更多詳細信息。
用法
voice.hangCall()
參數
空
返回
int 在異步模式下,hangCall() 如果最後一條命令仍在執行,則返回 0,如果成功則返回 1,如果出錯則返回 >1。在同步模式下,如果調用掛起,則返回 1,否則返回 0。
示例
// libraries
#include <MKRGSM.h>
// PIN Number
#define PINNUMBER ""
// initialize the library instance
GSM gsmAccess; // include a 'true' parameter for debug enabled
GSMVoiceCall vcs;
char numtel[20]; // buffer for the incoming call
void setup()
{
// initialize serial communications
Serial.begin(9600);
Serial.println("Receive Voice Call");
// connection state
boolean notConnected = true;
// Start GSM shield
// If your SIM has PIN, pass it as a parameter of begin() in quotes
while(notConnected)
{
if(gsmAccess.begin(PINNUMBER)==GSM_READY)
notConnected = false;
else
{
Serial.println("Not connected");
delay(1000);
}
}
// This makes sure the modem notifies correctly incoming events
vcs.hangCall();
Serial.println("Waiting Call");
}
void loop()
{
// Check the status of the voice call
switch (vcs.getvoiceCallStatus())
{
case IDLE_CALL: // Nothing is happening
break;
case CALLING: // This should never happen, as we are not placing a call
Serial.println("CALLING");
break;
case RECEIVINGCALL: // Yes! Someone is calling us
Serial.println("RECEIVING CALL");
// Retrieve the calling number
vcs.retrieveCallingNumber(numtel, 20);
// Print the calling number
Serial.print("Number:");
Serial.println(numtel);
// Answer the call, establish the call
vcs.answerCall();
break;
case TALKING: // In this case the call would be established
Serial.println("TALKING. Enter line to interrupt.");
while(Serial.read()!='\n')
delay(100);
vcs.hangCall();
Serial.println("HANG. Waiting Call.");
break;
}
delay(1000);
}
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注:本文由純淨天空篩選整理自arduino.cc大神的英文原創作品 MKRGSM - voice.hangCall()。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。