120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
#include "WiFi.h"
|
|
|
|
#define STA_SSID "**********"
|
|
#define STA_PASS "**********"
|
|
#define AP_SSID "esp32-v6"
|
|
|
|
static volatile bool wifi_connected = false;
|
|
|
|
WiFiUDP ntpClient;
|
|
|
|
void wifiOnConnect(){
|
|
Serial.println("STA Connected");
|
|
Serial.print("STA IPv4: ");
|
|
Serial.println(WiFi.localIP());
|
|
|
|
ntpClient.begin(2390);
|
|
}
|
|
|
|
void wifiOnDisconnect(){
|
|
Serial.println("STA Disconnected");
|
|
delay(1000);
|
|
WiFi.begin(STA_SSID, STA_PASS);
|
|
}
|
|
|
|
void wifiConnectedLoop(){
|
|
//lets check the time
|
|
const int NTP_PACKET_SIZE = 48;
|
|
byte ntpPacketBuffer[NTP_PACKET_SIZE];
|
|
|
|
IPAddress address;
|
|
WiFi.hostByName("time.nist.gov", address);
|
|
memset(ntpPacketBuffer, 0, NTP_PACKET_SIZE);
|
|
ntpPacketBuffer[0] = 0b11100011; // LI, Version, Mode
|
|
ntpPacketBuffer[1] = 0; // Stratum, or type of clock
|
|
ntpPacketBuffer[2] = 6; // Polling Interval
|
|
ntpPacketBuffer[3] = 0xEC; // Peer Clock Precision
|
|
// 8 bytes of zero for Root Delay & Root Dispersion
|
|
ntpPacketBuffer[12] = 49;
|
|
ntpPacketBuffer[13] = 0x4E;
|
|
ntpPacketBuffer[14] = 49;
|
|
ntpPacketBuffer[15] = 52;
|
|
ntpClient.beginPacket(address, 123); //NTP requests are to port 123
|
|
ntpClient.write(ntpPacketBuffer, NTP_PACKET_SIZE);
|
|
ntpClient.endPacket();
|
|
|
|
delay(1000);
|
|
|
|
int packetLength = ntpClient.parsePacket();
|
|
if (packetLength){
|
|
if(packetLength >= NTP_PACKET_SIZE){
|
|
ntpClient.read(ntpPacketBuffer, NTP_PACKET_SIZE);
|
|
}
|
|
ntpClient.flush();
|
|
uint32_t secsSince1900 = (uint32_t)ntpPacketBuffer[40] << 24 | (uint32_t)ntpPacketBuffer[41] << 16 | (uint32_t)ntpPacketBuffer[42] << 8 | ntpPacketBuffer[43];
|
|
//Serial.printf("Seconds since Jan 1 1900: %u\n", secsSince1900);
|
|
uint32_t epoch = secsSince1900 - 2208988800UL;
|
|
//Serial.printf("EPOCH: %u\n", epoch);
|
|
uint8_t h = (epoch % 86400L) / 3600;
|
|
uint8_t m = (epoch % 3600) / 60;
|
|
uint8_t s = (epoch % 60);
|
|
Serial.printf("UTC: %02u:%02u:%02u (GMT)\n", h, m, s);
|
|
}
|
|
|
|
delay(9000);
|
|
}
|
|
|
|
void WiFiEvent(WiFiEvent_t event){
|
|
switch(event) {
|
|
|
|
case SYSTEM_EVENT_AP_START:
|
|
//can set ap hostname here
|
|
WiFi.softAPsetHostname(AP_SSID);
|
|
//enable ap ipv6 here
|
|
WiFi.softAPenableIpV6();
|
|
break;
|
|
|
|
case SYSTEM_EVENT_STA_START:
|
|
//set sta hostname here
|
|
WiFi.setHostname(AP_SSID);
|
|
break;
|
|
case SYSTEM_EVENT_STA_CONNECTED:
|
|
//enable sta ipv6 here
|
|
WiFi.enableIpV6();
|
|
break;
|
|
case SYSTEM_EVENT_AP_STA_GOT_IP6:
|
|
//both interfaces get the same event
|
|
Serial.print("STA IPv6: ");
|
|
Serial.println(WiFi.localIPv6());
|
|
Serial.print("AP IPv6: ");
|
|
Serial.println(WiFi.softAPIPv6());
|
|
break;
|
|
case SYSTEM_EVENT_STA_GOT_IP:
|
|
wifiOnConnect();
|
|
wifi_connected = true;
|
|
break;
|
|
case SYSTEM_EVENT_STA_DISCONNECTED:
|
|
wifi_connected = false;
|
|
wifiOnDisconnect();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void setup(){
|
|
Serial.begin(115200);
|
|
WiFi.disconnect(true);
|
|
WiFi.onEvent(WiFiEvent);
|
|
WiFi.mode(WIFI_MODE_APSTA);
|
|
WiFi.softAP(AP_SSID);
|
|
WiFi.begin(STA_SSID, STA_PASS);
|
|
}
|
|
|
|
void loop(){
|
|
if(wifi_connected){
|
|
wifiConnectedLoop();
|
|
}
|
|
while(Serial.available()) Serial.write(Serial.read());
|
|
}
|