Display weather data and chat with multiple android clients

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Needed: LCD with i2c interface: www.ebay.de/itm/LCD-1602-Blau-  5.50€ Wemos D1 Mini: www.ebay.de/WeMos-D1-mini  6.20€ DHT11: www.ebay.de/DHT11  3.30€ sum: 15€ Board circuit: Arduino source code: #include <ESP8266WiFi.h> #include <LiquidCrystal_I2C.h> #include “DHT.h” LiquidCrystal_I2C lcd(0x3F, 16, 2); //how many clients should be able to telnet to this ESP8266 #define MAX_SRV_CLIENTS 3 #define DHTTYPE DHT11 // DHT 11 // TO BE CHANGED […]