We succeeded in transmitting data over a range of 32 meter. 

Aiming the blasters became impractical at a range of about 25 meters.

We tested outside in the dark to eliminate interference from the sun.

Technical specs:

• IR carrier frequency: 38 kHz
• IR switch frequency: 1000 Hz
• blaster power supply: 5 V for transmitter, 3.6 V for receiver.

To send data we turn the 38 kHz carrier frequency on and off.

The duration of the on + off length determines the type of signal (start, 0, 1, stop)

This is loosely based on the NEC IR protocol.

sending one bit takes 2 ms on average, excluding the start and stop bit.