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Can I design IR transmitter using micro RSC 4x?

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tommasokk

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Hi,
I want to ask if it's possible design an IR transmitter using microcontroller RSC 4x (Sensory's). And if you know some examples (firmware and schematic) that can be useful.
An other question: I have to command SKY (Satellite TV), which protocol I have to use, it dipend on the kind of television (Philips, Sony etch)?
 

38khz ir transmitter schematic

Hello,

I hope that you will be having the remote for the device you want to control.
In a fast micro like AVR, write a cap-com type of program using dual Interrupt and find out the timing. Using this you can determin the type of code.
Next task is to make a 38KHz IR transmitter.
This would be easy if you have a PWM on the Micro you are using. Then you can feed the PWM to the Port connected to the Transistor driving the IR led for higher current drive.

I have seen this it worked well for me.
 

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