esp32通过i2c点亮ssd1306

1. esp32/esp8266连接wifi

esp32/esp8266连接wifi

#include <WiFi.h>

#define LED_BUILTIN 2
 
const char* ssid = "qwer";
const char* password =  "**********";
s
 
void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
 
  Serial.begin(115200);
 
  WiFi.begin(ssid, password);
 
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.println("Connecting to WiFi..");
  }
 
  Serial.println("Connected to the WiFi network");
 
}
 
void loop() {
  delay(500);
  digitalWrite(LED_BUILTIN, HIGH);
  delay(500);
  digitalWrite(LED_BUILTIN, LOW);  

}

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