EC20 TCP/IP AT指令（安卓串口通信开发）
指令过程
1.等待串口接收字符串"RDY"模块系统启动成功。
2.发送"AT+CPIN?\r"，等待"+CPIN: READY"，SIM准备就绪。
3.发送" AT+CSQ\r"，等待"+CSQ: 25"，网络信号值要大于10通信才稳定。
4.发送" AT+CREG?\r"，等待" +CREG: 0,1"，网络注册成功后才能上网。
5.发送"AT+QIACT=1\r"，等待" ok"，激活移动场景。
6. AT+QIACT?\r"，等待" +QIACT: 1,1,1,"，是否获取到了IP地址如:“+QIACT: 1,1,1,"10.189.40.187"”。
7.发送" AT+QWWAN=1"，等待" OK"，启用有线网络。
/安卓代码过程/
//接收信息
String receivedMsg =StringUtils.toHexString(bytes);
String receivedString =StringUtils.hexStringToString(receivedMsg);
if (receivedString.contains("RDY")){
//查询SIM卡是否正常，返回ready则表示SIM卡正常
Message msg = new Message();
msg.obj = "RDY==模块系统启动成功";
msg.what=0;
myHandler.sendMessage(msg);
mreceivedMsg="RDY";
String sendMsg =StringUtils.convertStringToHex("AT+CPIN?");
byte[] sendBytes =StringUtils.toByteArray(sendMsg);
mSerialPortManager.sendBytes(sendBytes);
}else if (receivedString.contains("CPIN: READY")){
if (receivedString.contains("OK")){
//成功，下一步 发送AT+CSQ检测信号
Message msg = new Message();
msg.obj = "CPIN: READY==SIM准备就绪";
msg.what=0;
myHandler.sendMessage(msg);
Log.d(TAG, "onDataReceived: SIM准备就绪");
String sendMsg =StringUtils.convertStringToHex("AT+CSQ");
byte[] sendBytes =StringUtils.toByteArray(sendMsg);
mSerialPortManager.sendBytes(sendBytes);
mreceivedMsg="CPIN: READY";
}else {
//失败，需要重新发送
String sendMsg =StringUtils.convertStringToHex("AT+CPIN?");
byte[] sendBytes =StringUtils.toByteArray(sendMsg);
mSerialPortManager.sendBytes(sendBytes);
}
}
else if (receivedString.contains("CSQ")){
if (receivedString.contains("OK")){
String numStr="99";
String regex = "\\d*";
Pattern p = Pattern.compile(regex);
Matcher m = p.matcher(receivedString.replaceAll("\n",""));
while (m.find()) {
if (!"".equals(m.group())){
numStr=m.group();
break;
}}
int num=Integer.parseInt(numStr);
//检测信号在11~31之间则发送AT+CREG? 等待CREG: 0,1
if (num>10&&num<32){
Message msg = new Message();
msg.obj ="网络信号值"+receivedString;
msg.what=0;
myHandler.sendMessage(msg);
String sendMsg =StringUtils.convertStringToHex("AT+CREG?");
byte[] sendBytes =StringUtils.toByteArray(sendMsg);
mSerialPortManager.sendBytes(sendBytes);
mreceivedMsg=receivedString;
}else {
Message msg = new Message();
msg.obj ="AT+CSQ值==="+numStr;
msg.what=0;
myHandler.sendMessage(msg);
String sendMsg =StringUtils.convertStringToHex("AT+CSQ");
byte[] sendBytes =StringUtils.toByteArray(sendMsg);
mSerialPortManager.sendBytes(sendBytes);
}
}else {
String sendMsg =StringUtils.convertStringToHex("AT+CSQ");
byte[] sendBytes =StringUtils.toByteArray(sendMsg);
mSerialPortManager.sendBytes(sendBytes);
}
}
else if (receivedString.contains("CREG")){
if (receivedString.contains("OK")&&receivedString.contains("CREG: 0,1")){
// 收到 CREG: 0,1，则网络注册成功 发送AT+QIACT=1 激活移动场景
Message msg = new Message();
msg.obj = "网络注册成功："+receivedString;
msg.what=0;
myHandler.sendMessage(msg);
String sendMsg =StringUtils.convertStringToHex("AT+QIACT=1");
byte[] sendBytes =StringUtils.toByteArray(sendMsg);
mSerialPortManager.sendBytes(sendBytes);
mreceivedMsg=receivedString;
mreceivedMsg="CREG";
}else {
String sendMsg =StringUtils.convertStringToHex("AT+CREG?");
byte[] sendBytes =StringUtils.toByteArray(sendMsg);
mSerialPortManager.sendBytes(sendBytes);
mreceivedMsg=receivedString;
}
}
else if (receivedString.contains("AT+QIACT=1")){
mreceivedMsg="AT+QIACT=1";
}
else if (receivedString.contains("AT+QIACT?")){
//是否获取到了IP地址 如:“+QIACT: 1,1,1,"10.189.40.187"”
if (receivedString.contains("OK")&&receivedString.contains("QIACT: 1,1,1,")){
Message msg = new Message();
msg.obj = "获取到了IP地址"+receivedString;
msg.what=0;
myHandler.sendMessage(msg);
String sendMsg =StringUtils.convertStringToHex("AT+QWWAN=1");
byte[] sendBytes =StringUtils.toByteArray(sendMsg);
mSerialPortManager.sendBytes(sendBytes);
mreceivedMsg="AT+QIACT?";
}else {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
String sendMsg =StringUtils.convertStringToHex("AT+QIACT?");
byte[] sendBytes =StringUtils.toByteArray(sendMsg);
mSerialPortManager.sendBytes(sendBytes);
}
}
else if (receivedString.contains("AT+QWWAN=1")){
mreceivedMsg="AT+QWWAN=1";
}else if (receivedString.contains("POWERED DOWN")){
mreceivedMsg="POWERED DOWN";
tvInfo="============开始==================";
Message msg = new Message();
msg.obj ="关闭电源：===="+receivedString;
msg.what=0;
myHandler.sendMessage(msg);
}
else if (receivedString.contains("PB DONE")){
//结束通信
Message msg = new Message();
msg.obj ="PB DONE";
msg.what=0;
myHandler.sendMessage(msg);
}
else {
if (mreceivedMsg.contains("AT+QIACT=1")&&receivedString.contains("OK")){
//激活移动场景
Message msg = new Message();
msg.obj = "AT+QIACT=1";
msg.what=0;
myHandler.sendMessage(msg);
String sendMsg =StringUtils.convertStringToHex("AT+QIACT?");
byte[] sendBytes =StringUtils.toByteArray(sendMsg);
mSerialPortManager.sendBytes(sendBytes);
mreceivedMsg="AT+QIACT?";
}
if (mreceivedMsg.contains("AT+QWWAN=1")&&receivedString.contains("OK")){
Log.d(TAG, "onDataReceived: ================QWWAN");
//启用有线网络。
Message msg = new Message();
msg.obj = "OK==启用4g网络成功";
msg.what=0;
myHandler.sendMessage(msg);
Log.d(TAG, "onDataReceived:启用有线网络。");
mreceivedMsg="OK";
}
}