Arduino quick start links

http://playground.arduino.cc/

SKETCHES FOR UNO

sample

SKETCHES

16 x 2 LCD DF Robot /with buttons Hat

16x2 lcd hat wiki

IR Remote

https://arduino-info.wikispaces.com/IR-RemoteControl

https://github.com/z3t0/Arduino-IRremote

https://github.com/z3t0/Arduino-IRremote/wiki

DTH11 digital temp humidity

http://playground.arduino.cc/Main/DHT11Lib