any one can help me for this circuit below?
is that any problem with this circuit in the link?
can anyone tell me?
http://www.electronicsforu.com/EFYLinux/circuit/nov2004/CI-05-Nov04.pdf
the circuit never mention what type of IR LED be use, so i just simply buy and use it, anyway is it possible the problem of transmit?
I saw some forum dicuss by putting 2 IR LED at the output (pin3) of 555
what for ??
is that any problem with this circuit in the link?
can anyone tell me?
http://www.electronicsforu.com/EFYLinux/circuit/nov2004/CI-05-Nov04.pdf
the circuit never mention what type of IR LED be use, so i just simply buy and use it, anyway is it possible the problem of transmit?
I saw some forum dicuss by putting 2 IR LED at the output (pin3) of 555
what for ??