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Posted: **Fri Apr 02, 2010 8:15 pm**

Olympus RM-1 IR Shutter Release

OlympusRemoteV4.fcf: (8 KiB) Downloaded 703 times

Simple programme that replicates the shutter release from the RM-1infra red remote control.

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I have used a 16F877A as this is part of a larger project, it should work on any chip with PWM output.

The PWM output is used to produce the 38kHz Carrier frequency. Pin 16 is connected to an IR LED via a 220ohm resistor.

P4027016 copy.jpg: (143.09 KiB) Downloaded 4921 times

I have tested this on a Olympus E-3, although I believe this remote control works on other models.

Posted: **Fri Apr 02, 2010 8:17 pm**

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Posted: **Fri Apr 02, 2010 8:21 pm**

The transmitted signal comprises of :
9mSec burst
4.5mSec space
Address first byte
Address second byte
Command
NOTcommand

The logic bits are:
Logic 0 1.12mSec long

logic0.jpg: (48.7 KiB) Downloaded 4920 times

Logic 1 2.25mSec long

logic1.jpg: (53.79 KiB) Downloaded 4920 times

For more on Extended NEC protocol see:
http://www.sbprojects.com/knowledge/ir/nec.htm

output.jpg: (52.71 KiB) Downloaded 4920 times

Posted: **Sun Feb 06, 2011 10:11 pm**

I know someone who wanted one of these.
Thanks.
Great article.

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Olympus RM-1 IR Shutter Release

Olympus RM-1 IR Shutter Release

Re: Olympus RM-1 IR Shutter Release

Re: Olympus RM-1 IR Shutter Release

Re: Olympus RM-1 IR Shutter Release