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| Disclaimer:The following are my notes. As I am learning electronics, I am making my notes available. I hope they will be of benefit. However, I do not guarantee the accuracy of my work. I recommend the reader exercise critical thinking.
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IR Audio
July 29, 2009
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I thought it would be cool to send an audio signal via infrared.
I used a RadioShack IR transmitter and receiver. I browsed for
amplifier circuits. I used a microphone from an earlier project and
a speaker from a computer.
I'm still testing various parts of the circuit, but it does work.
I've been able to transmit the signal across my kitchen counter top.
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Receiver
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Transmitter
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Some links I referenced in this project:
- http://www.uashem.com/pageid-524.html
- http://www.epanorama.net/circuits/microphone_powering.html#basic
- http://braincambre500.freeservers.com/LM386%20Audio%20Amp.htm
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