Psion Infrared Remote Control Programs

by Jim Pollock

Last Mar 5,2002

CCF Decode Example Go here to see how to decode the raw data in a CCF file and setup the User defined protocol panels.

Downloads:

IR-Remote Version 0.59 (March 5,2002) Updated IR Remote test program.

• [.59] Increased the maximum IR burst size from 105 msec to 184 msec.
• [.59] The User Protocol is now saved and restored. You can now make full use of a custom protocol. I am currently using this feature to work out a new protocol to support the non-Sony brands of a DirecTV Tivo (ie Hughes and Philips).
• Included the latest version of CComms OPX 1.07 in the SIS package.
• Added three spare built-in protocol slots for future expansion. This moves the user protocol to the tenth slot. But since I did not allow this custom protocol to be saved I doubt anyone actually found a use for it.
• Added the SonyDTvo.IRC file to the SIS package. This file duplicates all 37 keys on a Sony SAT-T60 DirecTV Tivo remote. (uses Sony 15 bit protocol)
• Added support for the Sony 15 bit protocol.
• The last menu item selected is now remembered and used as the default when the menu is next activated.
• Touch screen support for Menu activation now works.
• Renamed program from S5TV to the more general IR-Remote. If you still have S5TV on your Psion then first remove it using the Add/Remove Program screen in the Control Panel. Otherwise you will need to manually delete the S5TV subfolder from the System/Apps folder.
• Per David Fowlers suggestion moved the Close option to the Files menu.
• Added the corret file to the SIS package so the Extra screen ICON now works. Thanks to David Fowler for the new ICONs.
• Displaying Waveforms and Parameters now works on the Revo/Mako. Added code so it auto adjusts to the smaller screen size and adjusted font size so all the parameters fit on the smaller screen.

S3TV Version 0.52 Test IR Keypad program. Supports four protocols: Sony, JVC VCR, Panasonic DVD, and Onkyo Receiver. Runs on a Siena/3c/3mx as a fully functional remote. See screen shots below for how it looks on a 3c or Siena. On the Siena you use the TAB key to select the left/right view. Range about 10 feet but must point directly at device. Supports cursor, or direct key press selection. Fully customizable within the supported protocols. Save your configuration.

SonyIR Version 0.3 Test IR remote program for the Siena/3c/3mx. Has 21 codes for Sony TVs plus lets you test any one of the 4096 possible Sony codes.

IR95 Version 1.0 If you have an HP-95LX this HP-95LX program by Gilles Kohl can be used to capture the IR signature from your remotes and save them in a KIR file. The KIR file can then be used to decode the protocols and determine the settings that allow Psions to reproduce them.

Modulated IR Signals
When a user presses a button on an IR remote, the remote sends a specific IR code that tells the receiving unit to carry out that specific command. Each button on the remote will generate a specific IR code. Although this IR code is digital, most remotes don't just simply send out a sequence of IR on and off pulses. The IR produced by most IR remotes is actually modulated IR.

Figure 1 shows a modulated IR signal. The IR output is modulated at a specific frequency, usually around 38 kHz (although frequencies over 100 kHz are used). The IR output is modulated to avoid interference. Modulating the IR signal produces a signal with a carrier, and the receiver can be tuned for this carrier. This way the receiver will be able to reject any other IR signals in the area which don't have the proper carrier frequency. Figure 2 shows how the raw modulated IR signal is gated by the command code.

Figure 1

Figure 2

Screen Shot of S3TV from 3c



Screen Shot of S3TV from Siena (left/right, use TAB to select)



Screen shot of S5TV from Series 5

Remote Control Codes:

Master IR Code Table - Previously available information on IR codes. This information is from a number of different web sites and has been collected here to preserve it. It provides a good overview of a large number of IR protocols from numerous manufacturers.

The following codes are for a SONY MDS-JE500 MD Recorder/SONY RM-D7M Remote control Handset (59 Keys). Thanks to Paul Stiles for compiling this list of codes. (And Herbert Dijkman for the additional three MDS-JE520 codes.)









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