My project contains an obstacle detection circuit. I am building the circuit using ken shirriff's infrared library as he showed here. "http://www.arcfn.com/2010/03/detecting-ir-beam-break-with-arduino-ir.html
". The original code by ken shirriff is posted below. The circuit is working perfectly when i connect the IR led to pin 3. But when i connect the IR led to pin 11 the IR led is not working. The only change i made to the code was change #define PIN_IR 3 to #define PIN_IR 11. If it is a silly mistake pls forgive me.
#define PIN_IR 3
#define PIN_DETECT 2
#define PIN_STATUS 13