Jan 21, 2007 #1 R rx5 Full Member level 2 Joined Oct 26, 2004 Messages 132 Helped 5 Reputation 10 Reaction score 4 Trophy points 1,298 Activity points 1,122 Anyone got idea/schematic HOW to make an IR Tx?? I wish to use it with the 38-40KHz IR demodulator (3 pins)..... should I make an clock source (38-40KHz) and "AND" it with a -signal- to be sent? is it the way to send it to the IR demod ??
Anyone got idea/schematic HOW to make an IR Tx?? I wish to use it with the 38-40KHz IR demodulator (3 pins)..... should I make an clock source (38-40KHz) and "AND" it with a -signal- to be sent? is it the way to send it to the IR demod ??
Jan 23, 2007 #2 N nikhilele Advanced Member level 3 Joined Jan 11, 2006 Messages 805 Helped 101 Reputation 202 Reaction score 76 Trophy points 1,308 Location Bangalore India Activity points 6,376 if you are using digital signals, then one ic555 as working in astable mode can be used as tx. and its pin 4 can be used to modulate the output signal.
if you are using digital signals, then one ic555 as working in astable mode can be used as tx. and its pin 4 can be used to modulate the output signal.