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+--- Thread: Receiver hardware for IR beam (red eye)? (/thread-20911.html)
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RE: Receiver hardware for IR beam (red eye)? - Tinue - 12-07-2023 07:11 PM
(12-07-2023 04:07 PM)Martin Hepperle Wrote: There are plenty of IrDA Transceiver modules should probably work for this purpose.
One of these modules is what you find inside the HP C4103.
Thanks! I wonder if this one is good enough: https://www.vishay.com/docs/84672/tfbs4650.pdf
The one in the C4103 is rated for 4Mbps, but I think 115200bps is enough.
The data sheet says "For input pulse width 1.6 < tTXD < 23 μs: Optical output pulse duration: tTXD + 0.15μs". Given that one pulse of 32kHz is 15.26μs, this looks fast enough.
It can't send and receive at the same time, but this is not required.
RE: Receiver hardware for IR beam (red eye)? - MeindertKuipers - 12-09-2023 10:34 AM
(12-07-2023 07:11 PM)Tinue Wrote:This module seems like a workable solution and includes an amplifier. Might be a bit of a challenge to solder wires to it, but with a steady hand this might really work(12-07-2023 04:07 PM)Martin Hepperle Wrote: There are plenty of IrDA Transceiver modules should probably work for this purpose.
One of these modules is what you find inside the HP C4103.
Thanks! I wonder if this one is good enough: https://www.vishay.com/docs/84672/tfbs4650.pdf
The one in the C4103 is rated for 4Mbps, but I think 115200bps is enough.
The data sheet says "For input pulse width 1.6 < tTXD < 23 μs: Optical output pulse duration: tTXD + 0.15μs". Given that one pulse of 32kHz is 15.26μs, this looks fast enough.
It can't send and receive at the same time, but this is not required.
RE: Receiver hardware for IR beam (red eye)? - Tinue - 12-11-2023 11:47 AM
These things are tiny...
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