85 lines
2.6 KiB
Arduino
85 lines
2.6 KiB
Arduino
 
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#if defined(ESP8266)
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#include <ESP8266WiFi.h> //https://github.com/esp8266/Arduino
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#else
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#include <WiFi.h>
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#endif
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//needed for library
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#include <ESPAsyncWebServer.h>
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#include <ESPAsyncWiFiManager.h> //https://github.com/tzapu/WiFiManager
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AsyncWebServer server(80);
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DNSServer dns;
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AsyncWiFiManager wifiManager(&server,&dns);
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volatile boolean guard = true;
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const uint32_t callCycleCount = ESP.getCpuFreqMHz() * 1024 / 8;
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/*
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* If some other code was in the process of calling a method in
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* WiFi, ESP or EEPROM, and we do too, there is a very good chance
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* a reset will happen.
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*/
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void ICACHE_RAM_ATTR interruptFunction() {
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/*
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* This is equivalent to:
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* timer0_write(ESP.getCycleCount() + ESP.getCpuFreqMHz() * 1024 / 8)
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* But that could clash with the main thread code.
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*/
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uint32_t ccount;
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__asm__ __volatile__("esync; rsr %0,ccount":"=a" (ccount));
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timer0_write(ccount + callCycleCount);
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if (!guard) {
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// An example call that would cause a reset if it happens
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// to be called while AsyncWiFiManager is also calling
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// methods that modify flash.
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ESP.getChipId();
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}
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}
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void setup() {
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// put your setup code here, to run once:
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Serial.begin(115200);
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//WiFiManager
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//Local intialization. Once its business is done, there is no need to keep it around
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//reset saved settings
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//wifiManager.resetSettings();
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//set custom ip for portal
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//wifiManager.setAPConfig(IPAddress(10,0,1,1), IPAddress(10,0,1,1), IPAddress(255,255,255,0));
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//fetches ssid and pass from eeprom and tries to connect
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//if it does not connect it starts an access point with the specified name
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//here "AutoConnectAP"
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//and goes into a blocking loop awaiting configuration
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//wifiManager.autoConnect("AutoConnectAP");
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//or use this for auto generated name ESP + ChipID
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//wifiManager.autoConnect();
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wifiManager.startConfigPortalModeless("ModelessAP", "Password");
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server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
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request->send(200, "text/plain", "Hello World");
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});
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// Set up some code that could cause a reset.
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guard = true;
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timer0_isr_init();
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timer0_attachInterrupt(interruptFunction);
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timer0_write(ESP.getCycleCount() + ESP.getCpuFreqMHz() * 1024); // Wait 2 seconds before displaying
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}
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void loop() {
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// put your main code here, to run repeatedly:
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// This can be called with guarding interrupt routines - so
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// interrupt routines can interrupt it!
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wifiManager.safeLoop();
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guard = true;
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// This call can not be interrupted without possibly causing a reset.
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wifiManager.criticalLoop();
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guard = false;
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}
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