Sankalp Mahajan

Welcome

In the code change the first if statement to - t1==1

Hey, Use this link : http://arduiniana.org/libraries/tinygpsplus/

View step 4

I don't know the power of the led, but they are directly connected to 5v of the arduino.

The code is given in step 4 above.

hey, here's the link : http://www.ebay.in/itm/262269289935?aff_source=Sok-Goog

car at sensor 1, IR output will be 100. led 1 and 2 will be on.now a second car passes at sensor 2, IR output will be 110. led 1,2 and 3 will glow.You will have to change the code completely.

Store the values of IR sensors output in an array. Like 1001010.....Then according to that you can define the output of leds.For example take the above circuit.. 3 IR and 4 leds.. When IR output is : 000 - no led 101 - all 4 led on 110 - first 3 led on And so on..You have to define each value so that there is margin of error. When you increase the number of sensors ie here for 3 led you use 8 IR then error would be reduced. More sensors = less error

n the circuit diagram you see the blue power and ground wires. Connect the 2 and 3rd IR sensor power and ground cable to them. the output of IR's to Arduino pin 1, 2.similarly for the LED's. Ground all 4 and attach the +ve side to pin 5,6,7.