Infrared Signal Reader


remote.zip (14K)

Windows program to read data from the serial port COM1. It requires MS Visual C++ V6.0 to build it. For now, this program just reads the remote signals, and creates a (large) log file containing signal timings and analysis. It is mostly a tool to help you study the remote control signals.

You need to build a device that reads the infrared signals from the remote and toggles the Carrier Detect signal on the serial port. Here's the schematic:

           +-------------------+--------+
           |                   |        |
           |                 ----- C1   |
           |                 -----      |   +----------+
    +pin-5-+   D1             +|        +---+ GND      |
 DB9|pin-7-----|>|---+--/\/\---+------------+ Vcc   I1 |
    +pin-1-+         |   R1             +---+ Vout     |
           |         \                  |   +----------+
           |         /                  |
           |         \  R2              |
           |         /                  |
           |         |                  |
           +---------+------------------+

Parts are available at Radio Shack:

LabelDescriptionRadio Shack Part No.
I1IR detector module276-137A
D11N914 diode276-1620
C110 uF cap272-1025
R14.7K res271-1330
R210K res271-1335
DB9D-sub 9-pin female276-1538

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