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Thank you everyone I think I have gotten the solution. I will go with the NE555 method since it is cheaper and stable also. In all thank you everyone for your contributions.
"Those IR sensors have quite a wide bandwidth, it doesn't have to be exactly 38KHz, as much as 1KHz each way should work just as well.
You can generate the 38KHz with almost any oscillator, I've used an NE555 on many occasions and when it had to be pulsed to carry data I control it with its...
Please am working on a project which is to design an intruder alarm system using tsop 1738 ir sensor and tsal 6200 ir diode. But the problem am having is how to produce an electric signal of 38kHz and also how to make it constant irrespective of change in temperature so that it can always be...
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