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timothy said:hello peeps, i built an IR transmitter with CD4069 hex inverter but it doesn't go very far. i do i buffer or increase the range of the IR transmitter?
Someone Electro said:The feq. must be also be exsactly the one of your reciver.IR modules "see" only its rated feq. it will ignore all other freq..
So if your freq. is off a bit it may reduce range.
Nigel, In your hardware section of your website where you have a circuit for IR communication, You use a 5V supply. What should be the value of the Cap (470uF) if i want to design it for two pencil cells (1.5V x 2 = 3V total). My IR remote works fine for 5V but the range is lost when i use 3V supply. I am using PIC18F2220 (if that matters somehow)
I already have one LED. How about just removing the resistor. I do not have any resistor less than 39 ohm.![]()