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: 0,1if (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";}}

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