esp32 arduino 支持eeprom保存配置参数
完整代码如下
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 | #include <WiFi.h> #include <WiFiUdp.h> #include "WString.h" #include "EEPROM.h" void sendSerial1(String str, bool addline = true ); typedef void (*funcSlice)(); #define ROM_STRING_SIZE 16 #define ROM_INT_SIZE 4 enum TaskType { TaskTypeLed, TaskTypeParse, TaskTypeSerialRecv, TaskTypeUDPRecv, TaskTypeCount }; enum Status { LedStatusOff = HIGH, LedStatusOn = LOW }; enum AddrEEProm { AddressSSID, AddressPassword = AddressSSID + ROM_STRING_SIZE, AddressPeerHost = AddressPassword + ROM_STRING_SIZE, AddressPeerPort = AddressPeerHost + ROM_STRING_SIZE, AddressCount = AddressPeerPort + ROM_INT_SIZE }; struct GlobalParam { uint32_t chipId; uint32_t uruntimemsec; uint32_t uledPin; uint32_t uledValue; uint16_t uUdpPort; bool bLedBlink; bool wifiConnected; String udpPeerHost; uint16_t udpPeerPort; String strCache; String strWifissid; String strWifiPassword; }; struct ProgramBlock { uint32_t runLast; uint32_t runSlice; funcSlice func; }; int pinsda = GPIO_ID_PIN(0); int pinscl = GPIO_ID_PIN(4); ProgramBlock pb[TaskTypeCount] = {0}; GlobalParam param = {0}; //The udp library class WiFiUDP udp; EEPROMClass romflash( "rom" , AddressCount); void showUsage() { Serial.println( "============== menu ==============" ); Serial.println( "?: help menu" ); Serial.println( "s: status info" ); sendSerial1( "reboot: reboot device" ); sendSerial1( "ssid=xxxx:save wifi ssid" ); sendSerial1( "password=xxxx:save wifi password" ); sendSerial1( "remhost=xxxx:save udp peer host" ); sendSerial1( "remport=xxxx:save udp peer port" ); Serial.println( "==================================" ); } void showStatus() { Serial.println( "=============== status =============" ); Serial. printf ( "chip Id:%d\n" , param.chipId); Serial.print( "wifi connected:" ); Serial.println(param.wifiConnected); Serial.print( "local ip:" ); Serial.println(WiFi.localIP()); // Serial.printf("has run time(misecs):%d\n", param.uruntimemsec); Serial.print( "led blink:" ); Serial.println(param.bLedBlink); String str; str = "ssid:" + param.strWifissid; sendSerial1(str); str = "password:" + param.strWifiPassword; sendSerial1(str); str = "has run:" + timeFormat(); sendSerial1(str); Serial. printf ( "udp listen port:%d\n" , param.uUdpPort); Serial.print( "udp peer host:" ); Serial.println(param.udpPeerHost); Serial. printf ( "udp peer port:%d\n" , param.udpPeerPort); Serial.println( "====================================" ); } String timeFormat() { int secs = param.uruntimemsec / 1000; int nday = 24*3600; String str; int day = secs / (nday); if (day > 0) { str += day; str += "d " ; } int hor = secs % nday; int h = hor/3600; if (h){ str += h; str += "h " ; } hor = hor % 3600; int m = hor /60; if (m) { str += m; str += "m " ; } int s = hor % 60; if (s) { str += s; str += "s" ; } str += "(" ; str += secs; str += "secs)" ; return str; } void initUDP() { param.uUdpPort = 10888; udp.begin(param.uUdpPort); } void initEEPRom() { char buf[ROM_STRING_SIZE] = {0}; if (!romflash.begin(romflash.length())) { sendSerial1( "failed to init eeprom wifissid" ); } else { memset (buf, 0, ROM_STRING_SIZE); int ret = romflash.readString(AddressSSID, buf, ROM_STRING_SIZE); param.strWifissid = buf; memset (buf, 0, ROM_STRING_SIZE); ret = romflash.readString(AddressPassword, buf, ROM_STRING_SIZE); param.strWifiPassword = buf; memset (buf, 0, ROM_STRING_SIZE); ret = romflash.readString(AddressPeerHost, buf, ROM_STRING_SIZE); param.udpPeerHost = buf; param.udpPeerPort = romflash.readInt(AddressPeerPort); } } void sendUDP(String str) { udp.beginPacket(param.udpPeerHost.c_str(), param.udpPeerPort); udp.println(str); udp.endPacket(); } void sendSerial1(String str, bool addline) { if (addline) { Serial.println(str); } else { Serial.print(str); } } void WiFiEvent(WiFiEvent_t event){ switch (event) { case SYSTEM_EVENT_STA_GOT_IP: //When connected set Serial.print( "WiFi connected! IP address: " ); Serial.println(WiFi.localIP()); //initializes the UDP state //This initializes the transfer buffer // udp.begin(WiFi.localIP(),udpPort); param.wifiConnected = true ; pb[TaskTypeLed].runSlice = 1000; param.bLedBlink = true ; initUDP(); break ; case SYSTEM_EVENT_STA_DISCONNECTED: Serial.println( "WiFi lost connection" ); param.wifiConnected = false ; pb[TaskTypeLed].runSlice = 3000; param.bLedBlink = false ; param.uledValue = LedStatusOff; break ; default : break ; } } void connectToWIFI() { WiFi.disconnect( true ); WiFi.onEvent(WiFiEvent); WiFi.begin(param.strWifissid.c_str(), param.strWifiPassword.c_str()); } void getChipInfo() { param.chipId = 0; for ( int i=0; i<17; i=i+8) { param.chipId |= ((ESP.getEfuseMac() >> (40 - i)) & 0xff) << i; } // Serial.printf("ESP32 Chip model = %s Rev %d\n", ESP.getChipModel(), ESP.getChipRevision()); // Serial.printf("This chip has %d cores\n", ESP.getChipCores()); // Serial.print("Chip ID: "); // Serial.println(chipId); } void taskLed() { if (param.bLedBlink) { if (LedStatusOff == param.uledValue){ param.uledValue = LedStatusOn; } else { param.uledValue = LedStatusOff; } } digitalWrite(param.uledPin, param.uledValue); } void taskParseData() { while (param.strCache.length()) { int index = param.strCache.indexOf( '\n' ); if (index < 0){ return ; } String strwhole = param.strCache.substring(0, index); param.strCache. remove (0, index+1); strwhole.trim(); Serial. printf ( "whole len:%d " , strwhole.length()); Serial.println(strwhole); // Serial.printf("equal ret:%d\n", ret); if (strwhole.equalsIgnoreCase(String( 's' ))) { showStatus(); } else if (strwhole.equalsIgnoreCase(String( "reboot" ))) { ESP.restart(); } else if (strwhole.startsWith( "ssid=" )) { String ssid = strwhole.substring(5, strwhole.length()); romflash.writeString(AddressSSID, ssid); romflash.commit(); sendSerial1(ssid); } else if (strwhole.startsWith( "password=" )) { String pwd = strwhole.substring(9, strwhole.length()); romflash.writeString(AddressPassword, pwd); romflash.commit(); sendSerial1(pwd); } else if (strwhole.startsWith( "remhost=" )) { String ssid = strwhole.substring(8, strwhole.length()); romflash.writeString(AddressPeerHost, ssid); romflash.commit(); sendSerial1(ssid); } else if (strwhole.startsWith( "remport=" )) { String ssid = strwhole.substring(8, strwhole.length()); romflash.writeInt(AddressPeerPort, ssid.toInt()); romflash.commit(); sendSerial1(ssid); } else { showUsage(); } } } void taskSerialRecv() { while (Serial.available()) { char nch = Serial.read(); param.strCache += nch; } } char buffUdpRecv[255] = {0}; void taskUDPRecv() { if (!param.wifiConnected){ return ; } int len = udp.parsePacket(); if (len <= 0){ return ; } // IPAddress phost = udp.remoteIP(); // uint16_t pport = udp.remotePort(); // param.udpPeerHost = phost; // param.udpPeerPort = pport; udp.read(buffUdpRecv, len); buffUdpRecv[len] = '\n' ; buffUdpRecv[len+1] = 0; param.strCache += buffUdpRecv; } void setup() { // put your setup code here, to run once: Serial.begin(115200); sendSerial1( "system start ..." ); initEEPRom(); pb[TaskTypeParse].runLast = 0; pb[TaskTypeParse].runSlice = 20; pb[TaskTypeParse].func = taskParseData; pb[TaskTypeLed].runLast = 0; pb[TaskTypeLed].runSlice = 1000; pb[TaskTypeLed].func = taskLed; pb[TaskTypeSerialRecv].runLast = 0; pb[TaskTypeSerialRecv].runSlice = 40; pb[TaskTypeSerialRecv].func = taskSerialRecv; pb[TaskTypeUDPRecv].runLast = 0; pb[TaskTypeUDPRecv].runSlice = 40; pb[TaskTypeUDPRecv].func = taskUDPRecv; getChipInfo(); param.uledPin = GPIO_ID_PIN(22); param.uledValue = LedStatusOff; pinMode(param.uledPin, OUTPUT); taskLed(); connectToWIFI(); } void loop() { // put your main code here, to run repeatedly: param.uruntimemsec = millis(); for ( int t = 0; t < TaskTypeCount; t++) { if (param.uruntimemsec - pb[t].runLast > pb[t].runSlice) { pb[t].runLast = param.uruntimemsec; pb[t].func(); } } } |
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