如何在 ESP32 運行時更改 WIFI 憑據？
[英]How to change WIFI credentials at runtime in ESP32?
問題描述
我對ESP32和Arduino ID有點陌生。 我一直在做一個項目，我想在任何給定時間將 wifi 網絡從一個切換到另一個。 但是，每當我嘗試關閉現有連接（網絡）並重新連接到新連接時，ESP32 就會崩潰並重新啟動。 我會說有點奇怪的行為。 此外，我什至嘗試將EEPROM用於存儲目的，因此，即使我的 ESP32 重新啟動，它也會從存儲中獲取更新的值。 不幸的是，即使我更新了之前傳遞給WiFi.begin()的變量，有時 ESP32 也會崩潰。 最后，在我的應用程序中，我將通過串行 (COM) 端口提供新的 SSID 和密碼。 任何人都可以幫助完成這項任務嗎？
2 個解決方案
解決方案1
0 2020-12-15 09:49:27
我發布了我的代碼的一小部分。 如您所見，我正在從序列中獲取一些數據並對其進行一些解析。 在串行發送幀后，例如： # ESP32 52 SSID_PASS $\n\r （在 FcSerialCommandParse 中）我正在嘗試存儲 SSID 和 PASS 字，但正如我在嘗試修改數據時提到的那樣，ESP32崩潰。
//Includes
#include <WiFi.h>
#include <AsyncUDP.h>
#include <WiFiUdp.h>
#include <PubSubClient.h>
#include <EEPROM.h>
//STRUCTURE VARIABLES
//union conversion 8 byte
typedef union
{
uint8_t uc_8 [(uint8_t)8]; int8_t sc_8 [(uint8_t)8];
uint16_t ui_16[(uint8_t)4]; int16_t si_16[(uint8_t)4];
uint32_t ui_32[(uint8_t)2]; int32_t si_32[(uint8_t)2];
uint64_t ui_64 ; int64_t si_64 ;
float fl_32 [(uint8_t)2]; double dd_64 ;
}unConvo8;
//union conversion 4 byte
typedef union
{
uint8_t uc_8 [(uint8_t)4]; int8_t sc_8 [(uint8_t)4];
uint16_t ui_16[(uint8_t)2]; int16_t si_16[(uint8_t)2];
uint32_t ui_32 ; int32_t si_32 ;
float fl_32 ;
}unConvo4;
//union conversion 2 byte
typedef union
{
uint8_t uc_8 [(uint8_t)2]; int8_t sc_8 [(uint8_t)2];
uint16_t ui_16 ; int16_t si_16 ;
}unConvo2;
//timer structure
typedef struct
{
uint8_t ucScanInput_TimerFlag_100msec; // This flag is used to perfrom the task with the frequncy of 100 ms
uint8_t ucScanInput_TimerFlag_1sec ; // This flag is used to perfrom the task with the frequncy of 1 sec
uint8_t ucScanInput_TimerFlag_1min ; // This flag is used to perfrom the task with the frequncy of 1 min
uint32_t uiVar1ms_Counter ; // Counter used to Count the 1 ms
uint32_t uiVar10ms_Counter ; // Counter used to Count the 10 ms
uint32_t uiVar100ms_Counter ; // Counter used to Count the 100 ms
uint32_t uiVar1sec_counter ; // Counter used to Count the 1 s
uint32_t uiVar1min_counter ; // Counter used to Count the 1 m
uint32_t uiVar1hour_counter ; // Counter used to Count the 1 h
uint8_t uiVar1day_counter ;
uint8_t uiVar1month_counter ;
uint8_t uiVar1year_counter ;
uint64_t uiVar1SecUniversalCNT ;
char ucLocalDateNTime[30] ;
}stTimerCounter_ALL;
//COM PORT Structure
typedef struct
{
uint8_t ucStartTimerCnt ;
uint8_t ucRXINTRFlag ;
uint16_t uiCOMRXCNT ;
uint8_t ucRxProcessFlag ;
uint8_t ucCOMRXBuff[(uint16_t)250];
}stCOMPort_ALL;
//UDP/ MQTT Structure
typedef struct
{
uint16_t uiMQTT_UDP_RXCNT ;
uint8_t ucMQTT_UDP_ProcessFlag ;
uint8_t ucMQTT_UDP_InitDone ;
uint8_t ucMQTT_UDP_ReconnectFlag ;
uint8_t ucMQTT_UDP_RXBuff[(uint16_t)1000];
char ucMQTT_TOPIC [_DEFAULT_STRLEN];
char ucMQTT_UDP_ServerIP[_DEFAULT_STRLEN];
uint16_t ucMQTT_UDP_ServerPort ;
uint8_t ucMQTTStatusFlag ;
}stMQTT_UDP_All;
//UDP/ MQTT Structure
typedef struct
{
uint8_t ucWifiConnnectivityFlag ;
char ucWifiIMEINumber[_DEFAULT_STRLEN];
uint8_t ucWifiIMEINumberUpdate ;
char ucWifiSSID [_DEFAULT_STRLEN] ;
char ucWifiPassword[_DEFAULT_STRLEN] ;
uint8_t ucWifiConnectingStart ;
uint8_t ucWifiConnectTime ;
}stWIFIPara_All;
//TCP Structure
typedef struct
{
char ucTCPServerIP[_DEFAULT_STRLEN];
uint16_t uiTCPServerPort ;
}stTCPPara_All;
/***WIFI CLINET Variable***/
WiFiClient RTKClient;
/***WIFI CLINET Variable***/
WiFiClient TCPClient;
/***UPD CLINET Variable***/
AsyncUDP Udp;
/***Timer Variable***/
stTimerCounter_ALL stVarTimerCounter_ALL ;
/***Com Port Variable***/
stCOMPort_ALL stVarCOMPort_ALL;
/***pub/sun Variable***/
// PubSubClient PunSubclient(RTKClient);
/***debugg Variable***/
char ucDebuggBuff[(uint8_t)200];
/***MQTT/ UDP Variable***/
stMQTT_UDP_All stVarMQTT_All;
/***WIFI Variable***/
stWIFIPara_All stVarWIFIPara_All;
/***TCP Variable***/
stTCPPara_All stVarTCPPara_All;
/*---------------------------------------------------------------------------
* MACROS
*---------------------------------------------------------------------------
*/
/**********************************************/
#define _WIFI_SSID (char *)"tw"
#define _WIFI_PASSWORD (char *)"saharaindia"
/**********************************************/
#define _MQTT_CLINET_ID (uint8_t) 29
#define _MQTT_SERVER_ADDRESS (char *)"58.146.103.207"
#define _MQTT_SERVER_PORTNO (uint16_t)1883
#define _MQTT_SERVER_TOPIC_NAME (char *)"RTK_TEST"
/**********************************************/
#define _UDP_BROADCAST_PORTNO (uint16_t)15151
/**********************************************/
#define _TCP_SERVER_ADDRESS (char *)"58.146.103.207"
#define _TCP_SERVER_PORTNO (uint16_t)2020
/**********************************************/
#define _EEPROM_SIGNATURE (uint32_t)0x133456
#define _EEPROM_ADD_SIGNATURE (uint8_t )0
#define _EEPROM_ADD_WIFI_SSID (uint8_t)10
#define _EEPROM_ADD_WIFI_PASS (uint8_t)31
#define _EEPROM_ADD_MQTT_IP (uint8_t)53
#define _EEPROM_ADD_MQTT_TOPIC (uint8_t)75
#define _EEPROM_ADD_TCP_SERVER (uint8_t)97
#define _EEPROM_ADD_TCP_PORTNO (uint8_t)119
/*---------------------------------------------------------------------------
* FUNCTIONS DECLARATION
*----------------------------------------------------------------------------
*/
void IRAM_ATTR FnTimerISR (void);
void FnFlashReadConfig (void);
void FnWIFINetworkReconnect (void);
void FnSerialCheckProccessINTR(void);
void FnSerialReceiveData (void);
uint8_t FcSerialCommandParse (void);
/*****************************************************************************
**@Function : FnCheckProccessINTR
**@Descriptions :
**@parameters : None
**@return : None
*****************************************************************************/
void FnSerialCheckProccessINTR(void)
{
static uint8_t ucMessageCnt = RESET ;
if( stVarCOMPort_ALL.ucStartTimerCnt == SET )
{
ucMessageCnt++ ;
if( stVarCOMPort_ALL.ucRXINTRFlag == SET )
{
ucMessageCnt = RESET ;
stVarCOMPort_ALL.ucRXINTRFlag = RESET ;
}
/******** If the Time Duration Between two bytes icreases 3ms
set the process flag for further process on the frame *********/
if( ucMessageCnt >= (uint8_t)0x03 )
{
ucMessageCnt = RESET ;
stVarCOMPort_ALL.ucStartTimerCnt = RESET ;
stVarCOMPort_ALL.ucRxProcessFlag = SET ;
}
}
}
/*****************************************************************************
**@Function : CheckSerial
**@Descriptions :
**@parameters : None
**@return : None
*****************************************************************************/
void FnSerialReceiveData(void)
{
if ( Serial.available() > RESET )
{
char inChar = Serial.read();
stVarCOMPort_ALL.ucCOMRXBuff[stVarCOMPort_ALL.uiCOMRXCNT++]=inChar;
/***************** FRAME TERMINATION CHECKING **************************/
stVarCOMPort_ALL.ucRXINTRFlag = SET ;
if( stVarCOMPort_ALL.ucStartTimerCnt != SET )
stVarCOMPort_ALL.ucStartTimerCnt = SET ;
}
}
/*****************************************************************************
**@Function : SerialProcess
**@Descriptions :
**@parameters : None
**@return : None
*****************************************************************************/
void FnSerialProcess (void)
{
if ( stVarCOMPort_ALL.ucRxProcessFlag == SET )
{ stVarCOMPort_ALL.ucRxProcessFlag = RESET ;
/*****************************************************************************/
if(FcSerialCommandParse() != RESET )
{
}
/*****************************************************************************/
else
{
Serial.print("# ESP32 99 CMD-UNKNOWN $");
memset(stVarCOMPort_ALL.ucCOMRXBuff, RESET ,
stVarCOMPort_ALL.uiCOMRXCNT);
stVarCOMPort_ALL.uiCOMRXCNT = RESET ;
}
}
}
/*****************************************************************************
**@Function : FcSerialCommandParse
**@Descriptions :
**@parameters : None
**@return : None
*****************************************************************************/
uint8_t FcSerialCommandParse (void)
{
uint8_t ucRet = RESET ;
if( strstr((char *)stVarCOMPort_ALL.ucCOMRXBuff,"# ESP32 ") )
{
char *ucChar = strstr((char *)stVarCOMPort_ALL.ucCOMRXBuff,"ESP32");
ucChar = strchr( ucChar , ' '); ucChar++;
char *ucChar1 = strchr( ucChar , ' '); *ucChar1 = NULL ; ucChar1++;
uint8_t ucSelec = atoi ( ucChar ); ucChar = ucChar1 ;
ucChar1 = strchr( ucChar , ' '); *ucChar1 = NULL ;
char ucTempBuff [(uint8_t)30]; strcpy ( ucTempBuff , ucChar );
char *ucTempBuff1;
switch (ucSelec)
{
case(uint8_t)6:
{
if(( strcmp(ucTempBuff, "RESET") != NULL)
||( strstr(ucTempBuff, "RESET") != NULL))
{
if( WiFi.status() == WL_CONNECTED )
{
WiFi.mode(WIFI_STA);
WiFi.disconnect(true);
delay(2000);
}
ESP.restart();
}
memset(stVarCOMPort_ALL.ucCOMRXBuff, RESET ,
stVarCOMPort_ALL.uiCOMRXCNT);
stVarCOMPort_ALL.uiCOMRXCNT = RESET ;
ucRet = SET ;
}break;
case(uint8_t)52:
{
sprintf( ucDebuggBuff,"RX *%s* CURR ^%s_%s^\n\r",
ucTempBuff, stVarWIFIPara_All.ucWifiSSID,
stVarWIFIPara_All.ucWifiPassword );
Serial.print(ucDebuggBuff);
ucTempBuff1 = strchr (ucTempBuff,'_');
if( ucTempBuff1 == NULL )
goto skipWIFICred ;
*ucTempBuff1 = NULL ; ucTempBuff1++;
if( WiFi.status() == WL_CONNECTED )
{
WiFi.mode(WIFI_STA);
WiFi.disconnect(true);
delay(2500);
WiFi.softAP("WIFIESP32", "");
delay(2500);
}
FnFlashWriteString( _EEPROM_ADD_WIFI_PASS, ucTempBuff1, _DEFAULT_STRLEN );
FnFlashWriteString( _EEPROM_ADD_WIFI_SSID, ucTempBuff , _DEFAULT_STRLEN );
Serial.print("WIFI PARA CHANGED!\n\r");
stVarWIFIPara_All.ucWifiConnnectivityFlag = RESET ;
delay(1000);
skipWIFICred:
memset( stVarCOMPort_ALL.ucCOMRXBuff, RESET ,
stVarCOMPort_ALL.uiCOMRXCNT );
stVarCOMPort_ALL.uiCOMRXCNT = RESET ;
ucRet = SET ;
}break;
default:
{
Serial.print("# ESP32 99 CMD-IMPROPER_PARSE $\n");
memset( stVarCOMPort_ALL.ucCOMRXBuff , RESET ,
stVarCOMPort_ALL.uiCOMRXCNT );
stVarCOMPort_ALL.uiCOMRXCNT = RESET ;
ucRet = SET ;
}
break;
}
}
return ucRet;
}
/*****************************************************************************
**@Function : IRAM_ATTR onTimer
**@Descriptions :
**@parameters : None
**@return : None
*****************************************************************************/
void IRAM_ATTR FnTimerISR(void)
{
portENTER_CRITICAL_ISR(&timerMux);
FnSerialCheckProccessINTR();
stVarTimerCounter_ALL.uiVar1ms_Counter ++;
if( stVarTimerCounter_ALL.uiVar1ms_Counter >= 10 )
{
stVarTimerCounter_ALL.uiVar1ms_Counter = RESET ;
stVarTimerCounter_ALL.uiVar10ms_Counter++ ;
}
if( stVarTimerCounter_ALL.uiVar10ms_Counter>= 10 )
{
stVarTimerCounter_ALL.uiVar10ms_Counter = RESET ;
stVarTimerCounter_ALL.uiVar100ms_Counter++ ;
/******************* SET THE SCAN FLAG *******************/
stVarTimerCounter_ALL.ucScanInput_TimerFlag_100msec = SET ;
}
if( stVarTimerCounter_ALL.uiVar100ms_Counter>= 10 )
{
stVarTimerCounter_ALL.uiVar100ms_Counter = RESET ;
stVarTimerCounter_ALL.uiVar1sec_counter++ ;
/******************* SET THE SCAN FLAG *******************/
stVarTimerCounter_ALL.ucScanInput_TimerFlag_1sec = SET ;
stVarTimerCounter_ALL.uiVar1SecUniversalCNT++;
if (stVarWIFIPara_All.ucWifiConnectingStart == SET )
{
stVarWIFIPara_All.ucWifiConnectTime ++ ;
if( stVarWIFIPara_All.ucWifiConnectTime == (uint8_t)3)
{
stVarWIFIPara_All.ucWifiConnectingStart =
stVarWIFIPara_All.ucWifiConnectTime = RESET ;
}
}
}
if(stVarTimerCounter_ALL.uiVar1sec_counter>= 60)
{
stVarTimerCounter_ALL.uiVar1sec_counter = RESET ;
stVarTimerCounter_ALL.uiVar1min_counter++ ;
/******************* SET THE SCAN FLAG *******************/
stVarTimerCounter_ALL.ucScanInput_TimerFlag_1min = SET ;
}
if(stVarTimerCounter_ALL.uiVar1min_counter >= 60 )
{
stVarTimerCounter_ALL.uiVar1min_counter = RESET ;
stVarTimerCounter_ALL.uiVar1hour_counter++ ;
}
if( stVarTimerCounter_ALL.uiVar1hour_counter >= 24 )
{
stVarTimerCounter_ALL.uiVar1hour_counter =
stVarTimerCounter_ALL.uiVar1min_counter =
stVarTimerCounter_ALL.uiVar1sec_counter =
stVarTimerCounter_ALL.uiVar100ms_Counter =
stVarTimerCounter_ALL.uiVar1ms_Counter = RESET ;
}
portEXIT_CRITICAL_ISR (&timerMux);
}
/*****************************************************************************/
void FnFlashReadConfig ( void )
{
if( FnFlashReadUint32( _EEPROM_ADD_SIGNATURE ) == _EEPROM_SIGNATURE )
{
Serial.print("FLASH SIGNATURE MATCHED!\n\r");
FnFlashReadString(_EEPROM_ADD_WIFI_SSID , stVarWIFIPara_All.ucWifiSSID , _DEFAULT_STRLEN );
FnFlashReadString(_EEPROM_ADD_WIFI_PASS , stVarWIFIPara_All.ucWifiPassword , _DEFAULT_STRLEN );
FnFlashReadString(_EEPROM_ADD_MQTT_IP , stVarMQTT_All.ucMQTT_UDP_ServerIP, _DEFAULT_STRLEN );
FnFlashReadString(_EEPROM_ADD_MQTT_TOPIC, stVarMQTT_All.ucMQTT_TOPIC , _DEFAULT_STRLEN );
stVarMQTT_All.ucMQTT_UDP_ServerPort = _MQTT_SERVER_PORTNO ;
FnFlashReadString(_EEPROM_ADD_TCP_SERVER, stVarTCPPara_All.ucTCPServerIP , _DEFAULT_STRLEN );
stVarTCPPara_All.uiTCPServerPort = FnFlashReadUint16( _EEPROM_ADD_TCP_PORTNO ) ;
sprintf(ucDebuggBuff,"M.SSID=%s_%d\n\rPASS=%s_%d\n\rMQTT IP=%s_%d\n\rMQTT TOPIC=%s_%d\n\rTCP SERVER=%s_%d\n\rTCP PORT=%d\n\n\r",
stVarWIFIPara_All.ucWifiSSID , strlen(stVarWIFIPara_All.ucWifiSSID) , stVarWIFIPara_All.ucWifiPassword , strlen(stVarWIFIPara_All.ucWifiPassword) ,
stVarMQTT_All.ucMQTT_UDP_ServerIP, strlen(stVarMQTT_All.ucMQTT_UDP_ServerIP), stVarMQTT_All.ucMQTT_TOPIC , strlen(stVarMQTT_All.ucMQTT_TOPIC),
stVarTCPPara_All.ucTCPServerIP , strlen(stVarTCPPara_All.ucTCPServerIP) , stVarTCPPara_All.uiTCPServerPort );
Serial.print(ucDebuggBuff) ;
}
else
{
sprintf(ucDebuggBuff,"FLASH SIGNATURE DOESN'T MATCHED! = %x \n\r",
FnFlashReadUint32( _EEPROM_ADD_SIGNATURE ));
Serial.print( ucDebuggBuff );
FnFlashWriteUint32( _EEPROM_ADD_SIGNATURE , _EEPROM_SIGNATURE );
FnFlashWriteString( _EEPROM_ADD_WIFI_SSID , _WIFI_SSID , strlen( _WIFI_SSID ));
FnFlashWriteString( _EEPROM_ADD_WIFI_PASS , _WIFI_PASSWORD , strlen( _WIFI_PASSWORD ));
FnFlashWriteString( _EEPROM_ADD_MQTT_IP , _MQTT_SERVER_ADDRESS , strlen( _MQTT_SERVER_ADDRESS ));
FnFlashWriteString( _EEPROM_ADD_MQTT_TOPIC, _MQTT_SERVER_TOPIC_NAME, strlen( _MQTT_SERVER_TOPIC_NAME));
FnFlashWriteString( _EEPROM_ADD_TCP_SERVER, _TCP_SERVER_ADDRESS , strlen( _TCP_SERVER_ADDRESS ));
FnFlashWriteUint16( _EEPROM_ADD_TCP_PORTNO, _TCP_SERVER_PORTNO );
delay (1000);
strcpy( stVarWIFIPara_All.ucWifiSSID , _WIFI_SSID );
strcpy( stVarWIFIPara_All.ucWifiPassword , _WIFI_PASSWORD );
strcpy( stVarMQTT_All.ucMQTT_TOPIC , _MQTT_SERVER_TOPIC_NAME );
strcpy( stVarMQTT_All.ucMQTT_UDP_ServerIP, _MQTT_SERVER_ADDRESS );
stVarMQTT_All.ucMQTT_UDP_ServerPort = _MQTT_SERVER_PORTNO ;
strcpy( stVarTCPPara_All.ucTCPServerIP , _TCP_SERVER_ADDRESS );
stVarTCPPara_All.uiTCPServerPort = _TCP_SERVER_PORTNO ;
sprintf(ucDebuggBuff,"M.SSID=%s_%d\n\rPASS=%s_%d\n\rMQTT IP=%s_%d\n\rMQTT TOPIC=%s_%d\n\rTCP SERVER=%s_%d\n\rTCP PORT=%d\n\n\r",
stVarWIFIPara_All.ucWifiSSID , strlen(stVarWIFIPara_All.ucWifiSSID) , stVarWIFIPara_All.ucWifiPassword , strlen(stVarWIFIPara_All.ucWifiPassword) ,
stVarMQTT_All.ucMQTT_UDP_ServerIP, strlen(stVarMQTT_All.ucMQTT_UDP_ServerIP), stVarMQTT_All.ucMQTT_TOPIC , strlen(stVarMQTT_All.ucMQTT_TOPIC),
stVarTCPPara_All.ucTCPServerIP , strlen(stVarTCPPara_All.ucTCPServerIP) , stVarTCPPara_All.uiTCPServerPort );
Serial.print(ucDebuggBuff) ;
}
}
/*****************************************************************************
**@Function : setup
**@Descriptions :
**@parameters : None
**@return : None
*****************************************************************************/
void setup()
{
/***************************************************/
Serial.begin ((uint32_t)230400);
/***************************************************/
EEPROM.begin((uint8_t)127);
FnFlashReadConfig();
/***************************************************/
/********WIFI INIT*******/
WiFi.disconnect(true);
delay((uint16_t)2000);
WiFi.begin(stVarWIFIPara_All.ucWifiSSID ,
stVarWIFIPara_All.ucWifiPassword);
for ( uint8_t ucWifiCheck = RESET ;
ucWifiCheck < (uint8_t)10 ; ucWifiCheck++ )
{
if( WiFi.status() == WL_CONNECTED )
{
stVarWIFIPara_All.ucWifiConnnectivityFlag = SET ;
IPAddress SelfIPAddress = WiFi.localIP();
Serial.print("WIFI: CONNECTED!\n");
Serial.println(SelfIPAddress);
break;
}
else
{
stVarWIFIPara_All.ucWifiConnnectivityFlag = RESET ;
Serial.print("WIFI: UNABLE TO CONNECT!\n");
}
delay((uint16_t)1000);
}
/******** SETTING THE TIMMER TO 1MS INTR *******/
timer = timerBegin (RESET ,(uint8_t)80 , true);
timerAttachInterrupt( timer , &FnTimerISR , true);
timerAlarmWrite ( timer ,(uint16_t)1000, true);
timerAlarmEnable ( timer );
}
/*****************************************************************************
**@Function : setup
**@Descriptions :
**@parameters : None
**@return : None
*****************************************************************************/
void FnWIFINetworkReconnect(void)
{
if(WiFi.status() == WL_CONNECTED )
{
if ( stVarWIFIPara_All.ucWifiConnnectivityFlag == RESET )
{ stVarWIFIPara_All.ucWifiConnnectivityFlag = SET ;
Serial.print("# ESP32 53 1 $\n");
}
}
else
{
if ( stVarWIFIPara_All.ucWifiConnnectivityFlag == SET )
{ stVarWIFIPara_All.ucWifiConnnectivityFlag = RESET ;
Serial.print("# ESP32 53 0 $\n");
WiFi.disconnect(); delay(100);
}
static uint8_t
ucWIFIConnectivitycheck = RESET ;
ucWIFIConnectivitycheck ++ ;
if ( ucWIFIConnectivitycheck == _WIFI_STATUS_CHECK_TIME )
{ ucWIFIConnectivitycheck = RESET ;
uint8_t ucWifiSSIDScan = WiFi.scanNetworks();
if ( ucWifiSSIDScan != RESET )
{
for ( uint8_t ucLoopCnt = RESET ; ucLoopCnt < ucWifiSSIDScan++ ; ucLoopCnt++ )
{
if(( strcmp ( WiFi.SSID(ucLoopCnt).c_str(),stVarWIFIPara_All.ucWifiSSID ) == RESET )
||( strstr ( WiFi.SSID(ucLoopCnt).c_str(),stVarWIFIPara_All.ucWifiSSID ))!= NULL )
{
sprintf(ucDebuggBuff,"# ESP32 52 %s $\n",WiFi.SSID(ucLoopCnt));
Serial.print(ucDebuggBuff);
WiFi.disconnect(); delay(100);
stVarWIFIPara_All.ucWifiConnectingStart= SET ;
WiFi.begin(stVarWIFIPara_All.ucWifiSSID ,
stVarWIFIPara_All.ucWifiPassword );
}
}
}
}
}
}
/*****************************************************************************
**@Function : loop
**@Descriptions :
**@parameters : None
**@return : None
*****************************************************************************/
void loop()
{
/**************************************************************************/
FnWIFINetworkReconnect();
/**************************************************************************/
FnSerialReceiveData();
FnSerialProcess();
}
解決方案2
0 2020-12-20 09:41:13
我嘗試了一個類似的任務，在 memory 中保留值。 ESP32 缺少 eeprom，因此您需要使用一些用於 ESP32 的 nvs（非易失性存儲）功能。 例如，參見https://github.com/rpolitex/ArduinoNvs 。
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