Description: A green LED turns ON when a Wemos Lolin D1 Mini Pro connects to the internet via WiFi.
Supplies:
1 – Breadboard 400 Points
1 – Wemos Lolin D1 Mini Pro V2
1 – LED
1 – 220 Ohm Resistor
Arduino Code:
#include "ESP8266WiFi.h" const char* ssid = "WiFi Network Name"; // Enter your WiFi SSID const char* password = "password"; // Enter Password #define led 4 void setup() { pinMode(led, OUTPUT); Serial.begin(9600); // Connect to WiFi WiFi.begin(ssid, password); Serial.println(""); Serial.println(""); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("*"); } Serial.println(""); Serial.println("WiFi connection successful"); Serial.print("IP Address: "); Serial.print(WiFi.localIP()); } void loop() { if (WiFi.status() == WL_CONNECTED) { digitalWrite(led, HIGH); } }