Hello Guys, In this Blog I will explain how to make simple weather station to sense temperature and humidity using DHT11 sensor and Arduino, the sensed data will be displayed on LCD Display. Before starting this instructable you must know some information about the DHT11 sensor. DHT11 16×2 LCD Display Arduino Uno Male to Female Jumper Wires - 8 Step 2: About DHT11 Sensor DHT11 is a humidity and temperature sensor. It can be used as humidity sensor as well as the temperature sensor. You can find the dht11 sensor of 2 types in the market. One is with 4 pins and another is with 3 pins. In 3 pin dht11 sensor already 10k Ohm resistor is added inside the module. The operating voltage of this module is 3.3 V. The output of this sensor is digital. Step 3: Connecting DHT11 With Arduino If you are using 4 pins DHT11 Connection are as follows DHT11 Arduino UNO Vcc 3.3V Out PIN4 (Digital) GND GND NC -- Connect a 10K Ohm resistor between Vcc and Out Pin of DHT11. If you are using 3 pins DHT11 ...