Connect the TX and RX from the Bluetooth moduel to the Arduino and the VCC and GND.
Then connect the long pin of the led to pin 13 and the short one to GND.
connect the lcd to the Arduino as showed in the pic.
for laptop all you need is to connect the Bluetooth then open the serial on the Arduino IDE.
But for the smatphone you need to download an app from play store called ArduDroid or SENA BTerm
when you send 0 the led turn OFF and when you send 1 the led turn ON