InfraRed Transmitter -> Receiver

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SUMMARY

The discussion focuses on the integration of RS-232 communication with Infrared (IR) technology using an IR photodiode (Rx) and an IR emitter (Tx). Key insights include the importance of understanding current transfer ratios for IR links, with recommendations to consult application notes from manufacturers like HP and Motorola. Additionally, the discussion highlights potential signal-to-noise ratio (SNR) challenges associated with IR communication, particularly when not using fiber optics for signal confinement.

PREREQUISITES
  • Understanding of RS-232 communication protocol
  • Knowledge of IR photodiodes and emitters
  • Familiarity with signal-to-noise ratio (SNR) concepts
  • Basic electronics principles related to current transfer ratios
NEXT STEPS
  • Research application notes from HP and Motorola on IR emitter and detector components
  • Explore Wikipedia for detailed information on IR remote control technology
  • Study the effects of SNR on IR communication systems
  • Investigate the use of fiber optics for IR signal confinement
USEFUL FOR

Electronics engineers, hobbyists working on IR communication projects, and anyone interested in integrating RS-232 with infrared technology.

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Im working on a project and i would like know where i can find an ebook or site that could help me understand this technology. I will use an IR photodiode (Rx) and an IR emitter (Tx). the signal being sent will originate from a RS-232.

So basically i have RS-232 <-> IR <-> RS-232, and so i need to understand the properties of this communication medium.
 
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To understand the basic current transfer ratios of IR links, you can browse the application notes at the manufacturers of the IR emitter and detector components (I would start with HP and Motorola).

To understand IR remote control subtleties, I'd start at wikipedia.org.

Unless you are going to use 1mm fiber (or similar) to confine the IR signal, you are going to deal with the same SNR issues that IR remote controls have to deal with. And dealing with those issues will push you away from baseband IR coupling of the RS-232 signals, IMO.
 

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