具有esp8622开发板库的Arduino IDE
NodeMCU 8266 v0.9 devkit开发板
连接到第一个AP时，一切正常，到端口9001 tcp服务器的连接成功，并发送了数据。但是，当客户端eps8266因超出范围而失去与第一个AP的连接并成功连接至第二个AP时，它将不连接至TCP服务器TKDClient.connect（）;。只会返回0。
...
**Variables and Setup**
WiFi.disconnect();
// Setting The Wifi Mode
WiFi.mode(WIFI_AP);
WiFi.setOutputPower(0);
Serial.println("WIFI Mode : AccessPoint");
// Starting The Access Point
WiFi.softAP("Wifi", "", 12);// its an open AP so no PW
void loop()
{
IsClients();
}
void IsClients()
{
if(TKDServer.hasClient())
{
WiFiClient TKDClient = TKDServer.available();
while(1)
{
if(TKDServer.hasClient())
{
TKDClient.stop();
TKDClient = TKDServer.available();
Serial.println("Client");
}
delay(1000);
if(TKDClient.available()) //Message over wifi
{
String Message = TKDClient.readStringUntil('\r');
Serial.println(Message);
delay(20);
if (Message == "<SEND>") {
Serial.println("Sending XYZ");
TKDClient.println(pegValue);
// TKDClient.flush();
}
}
}
}
else
{
...
}
}
...
**Variables and Setup**
void loop()
{
CheckConnectivity();
while(TKDClient.available())
{
strValue = TKDClient.readStringUntil('\n');
Serial.println(strValue);
if (strValue.startsWith("<"))
{
Serial.println("Eeprom write");
... Eeprom write code
}
}
delay(1000);
}
void CheckConnectivity()
{
while(WiFi.status() != WL_CONNECTED)
{
WiFi.mode(WIFI_STA);
WiFi.begin("WIFI");
discFlag = 0; //Disconnect flag to mark if it disconnected
for(int i=0; i < 10; i++)
{
... Blink Led
Serial.print("."); //progress bar type of thing
}
Serial.println("");
}
if (!discFlag){
discFlag = 1;
... show connect light
Serial.println("!-- Client Device Connected --!");
Serial.println("Connected To : " + String(WiFi.SSID()));
Serial.println("Signal Strenght : " + String(WiFi.RSSI()) + " dBm");
Serial.print ("Server IP Address : ");
Serial.println(TKDServer);
Serial.print ("Device IP Address : ");
Serial.println(WiFi.localIP());
TKDRequest();
}
}
void TKDRequest()
{
TKDClient.stop(); // First Make Sure You Got Disconnected
Serial.println("DEBUG-3C");
Serial.println(WiFi.status());
Serial.println(TKDClient.connect(TKDServer, 9001));
// If Sucessfully Connected Send Connection Message
if(TKDClient.connect(TKDServer, 9001))
{
Serial.println ("--CONNECTED--");
delay(5000);
TKDClient.println ("<SEND>");
Serial.println ("Sending: <SEND>");
// TKDClient.flush();
}
}
第一个AP
station: a0:20:a6:13:6e:ac leave, AID = 1
rm 1
wifi evt: 6
add 1
aid 1
station: a0:20:a6:13:6e:ac join, AID = 1
wifi evt: 5
wifi evt: 9
wifi evt: 9
Client
Client
Client
<SEND>
Sending XYZ
<X55665.5646;Y4536.455;Z5453.453>
<SEND>
第二个AP
wifi evt: 7
wifi evt: 7
wifi evt: 7
station: a0:20:a6:13:6e:ac leave, AID = 1
rm 1
wifi evt: 6
add 1
aid 1
station: a0:20:a6:13:6e:ac join, AID = 1
wifi evt: 5
wifi evt: 9
wifi evt: 9
忽略Mac是相同的事实，因为我仅在一个esp8266上进行过调试，因此在将其用作第一个AP并在其作为第二个AP时进行了调试
18:37:22.864 ....scandone
18:37:24.724 state: 0 -> 2 (b0)
18:37:24.724 state: 2 -> 3 (0)
18:37:24.724 state: 3 -> 5 (10)
18:37:24.724 add 0
18:37:24.724 aid 1
18:37:24.724
16:41:29.919 connected with WIFI, channel 12
16:41:30.008 dhcp client start...
16:41:30.008 cnt
16:41:30.008 wifi evt: 0
16:41:30.049 .ip:192.168.4.2,mask:255.255.255.0,gw:192.168.4.1
16:41:30.208 wifi evt: 3
18:38:05.085 .......
18:38:08.103
18:38:08.103 !-- Client Device Connected --!
18:38:08.103 Connected To : WIFI
18:38:08.103 Signal Strenght : -69 dBm
18:38:08.103 Server IP Address : 192.168.4.1
18:38:08.103 Device IP Address : 192.168.4.2
18:38:08.103 DEBUG-3C
18:38:08.103 3
18:38:08.103 1
18:38:08.103 --CONNECTED--
18:38:13.103 Sending: <SEND>
18:38:13.451 pm open,type:2 0
18:38:14.607 <X55665.5646;Y4536.455;Z5453.453>
18:38:14.607 Eeprom write
第二个AP
18:38:57.476 bcn_timout,ap_probe_send_start
18:38:59.985 ap_probe_send over, rest wifi status to disassoc
18:38:59.985 state: 5 -> 0 (1)
18:38:59.985 rm 0
18:38:59.985 pm close 7
18:38:59.985 wifi evt: 1
18:38:59.985 STA disconnect: 200
18:39:00.608 scandone
18:39:00.979 scandone
18:39:00.979 state: 0 -> 2 (b0)
18:39:00.979 state: 2 -> 3 (0)
18:39:00.979 state: 3 -> 5 (10)
18:39:00.979 add 0
18:39:00.979 aid 1
18:39:00.979
18:39:00.979 connected with WIFI, channel 12
18:39:01.069 dhcp client start...
18:39:01.069 cnt
18:39:01.069 wifi evt: 0
18:39:01.109 .ip:192.168.4.2,mask:255.255.255.0,gw:192.168.4.1
18:39:01.249 wifi evt: 3
18:39:01.609 .........
18:39:05.625
18:39:05.625 !-- Client Device Connected --!
18:39:05.625 Connected To : WIFI
18:39:05.625 Signal Strenght : -60 dBm
18:39:05.625 Server IP Address : 192.168.4.1
18:39:05.625 Device IP Address : 192.168.4.2
18:39:05.625 DEBUG-3C
18:39:05.625 3
18:39:10.616 0
18:39:10.976 pm open,type:2 0
我真的不知道要花几天时间才能完成这项工作需要什么。