range or infrared transmitter

[maadi]

hi,
i am doin a project on ucontroller.i have a transmitter & receiver circuit a nd i am cotrolling devices through u controller using these infrared transmitter & receiver. now the prob is of range.when i take transmitter circuit away from receiver(distance=4 inches approx)it does"nt work .help me out

 

[afti_khan]

it's very simple. just check the question posted by me. the circuit and the range solutions r gi ven there

 

[pangloong]

To do a good wireless control, first have to make sure what frequency u are use. Because high frequency and low frequency have different effect on the circuit. When using in high frequency, the miller effecr will affect the amplifier gain.

 

[flatulent]

If you have an oscilloscope you can look at the receiver signal with the transmitter off. This will tell you if there is any interference from the room lights.

 

[the_risk_master]

You should keep the transmitter and receiver in eye level or onto their line of sight to ensure transmission, you may also use fiber optics