LIRC - Serial Port Receivers Serial Port Receivers The following page will show you how to build your own infrared receiver for the serial port. Please note that the serial port driver in the LIRC package only supports 8250 compatible UARTs (this includes the most common 16450 and 16550A types). That means that it won't work with exotic multi-port cards that need a special driver. From my own experience, the hardest thing in building your receiver hardware is getting a suitable infrared receiver IC. Hence, here is a list of ICs that have been successfully used to build a serial port receiver.

Which is not suitable for remote control applications which use 950 nm) and added a small signal diode to protect the IR LED from the voltage of the serial port. Most IR LEDs have reverse voltage ratings of only 5V. I received reports that the range of the first circuit will be much smaller if you use it together with an receiver. Thanks to the LIRC list and everyone's suggestions!! Please add this receiver between serial receiver on web page Schematic is.

But be aware that not all of them have the same pin-out! • Vishay TSOP 1738 (available in the US at Newark Electronics) • Vishay TSOP 1838 • Vishay TSOP 11. Series • Siemens SFH 506 (not produced any more) • Siemens (successor of SFH 506) • discontinued: Radio Shack 276-0137 () • Radio Shack 276-640 Warning: There have been reports that the signal quality these receivers produce is very unstable. If possible use another receiver IC. • Hebei IT • Everlight IRM-2238 • Everlight IRM 8100-3-M (Radio Shack part no. 276-0137B) • Everlight IRM-8601M • Mitsumi IR Preamp KEY-COOSV (0924G) • TOSHIBA TK19 444 TFMS 5360 (known in Italy as Mivar IC) • TEMIC TFMS 5380 by Telefunken Semiconductors • Sharp (available at, it seems that this IC draws much more current than the others) Warning: Some users have reported problems with the IS1U60 receiver.

It picks up ambient light and is nearly unusable with fluorescent lamps. Adobe Livecycle Samples. If ever possible get a different receiver.

• • Sony SBX 1404-01 • Sony SBX 1620-12 • Sharp 1u521X • Sharp GP1U52XB • Sharp GP1U271R (available from RS) • Sharp GP1UD261XK (available from Digikey) • Panasonic PNA4602M (available from Digikey) • Panasonic PNA4611M (36 kHz, available from Digikey) • Panasonic PNA4612M (38 kHz, available from Digikey) • Kodenshi PIC-12043S • Daewoo DHR-38 C 28 • ZD1952 (available in Australia at ) Check the pinout, it's different from most other modules. • Z1955 (available in Australia at ) Check the pinout, it's different from most other modules. • A-Tronic TRM38 IR module • TRM1038 (manufacturer unknown), • Sharp Electronics GP1UD277XK (Digikey part no. 425-1122-ND) This is a 56kHz type receiver. It has been reported to also work well with 38kHz remotes. Most of these receivers come in variations adapted to a specific carrier frequency. You should choose the 38kHz types because most remote control standards use this frequency.

36kHz types should work as well. The receiver won't stop working if your remote uses another frequency but the range will decrease. If in doubt which IR receiver type to choose you should read this more internally. There are also some brands that use 56kHz carrier frequency.

A 38kHz receiver should still work to create a config file for these kinds of remotes at short range but if you plan to use them regularly you should use a 56kHz receiver. Bang & Olufsen uses 455kHz for their remotes so you will need a matching receiver. 38kHz or 56kHz receivers won't work. Some HiFi components also have a remote control output which carries the IR signal at TTL level. Autocad Portable 32 Bits Español here.

If you plan to integrate your computer into the HiFi rack, you might be able to reuse this output instead of using a dedicated receiver. Additionally to the receiver you will need the following parts: • C1 - 4.7µF capacitor • D1 - 1N4148 diode • R1 - 4k7 resistor (4.7 kOhm) • IC2 - 78L05, 100mA, voltage regulator (TO-92 casing) • 9-pin or 25-pin SUB-D socket The pin-out of the voltage regulator usually looks like this (bottom view): 1 2 3 _______ / Pin1 = OUT ( o o o ) Pin2 = GND / Pin3 = IN -___- But you should check the data sheet anyway to make sure you have the same type of regulator that is used here. Finally we come to the circuit itself.

It's rather simple and can be explained in a few words. Here's also a of the ASCII arts below. There's also a suggestion how to the circuit on a 5x5 hole-matrix board. The connector pins on the data-to-PC are designed to use a standard CD-ROM audio cables, but of course it's not necessary to use one. IC1 = TSOP 1738 +-----------------------+ 3 R1 (4k7) data ->+--------------------------------+------------o DCD _______ ______________ 78L05 D1 (1N4148) / +-----+----- OUT IN --+ ( 2 + __GND__ / ______________ + +----+ ----- +----+------ .

Just an FYI on using HDHomeRun as the IR receiver. I got this working with my MythTV frontened. Basically, lirc listens on a UDP port for the IR commands sent from the HDHR box. I sniffed the wire between the two and saw that HDHR seems to recognize the IR events from all of my remote controls for all my devices. So, it looks like a pretty flexible receiver. I did have a bit of trouble learning the IR codes via irrecord, but eventually found a device remote that the HDHR learned. I took the output from that as my lircd.conf, and edited MythTV's lircrc to match up the buttons to actions, and it works very well.

Originally Posted by wnewell There's a great misconception about remotes and lirc. As long as you have a compatible IR receiver, any IR remote (with maybe a few weird exceptions) will work with it. Your Tivo remote will work too.

As for compatible IR receivers, there's a huge choice anywhere from $1.50 up. Here's the cheapest I know of and it comes with a remote. I've been using the ir receiver from one of these for years. I don't know how up to date this is but it list a lot of compatible ir receivers. So should a tivo remote work fine with *any* MCE receiver?

(sorry not too familiar with them). Originally Posted by AlphaWolf So should a tivo remote work fine with *any* MCE receiver? (sorry not too familiar with them) It should work fine with any lirc compatible ir receiver. That includes MCE receivers. Besides the old PB serial receiver I use I also use the old HP USB media center receivers. I bought 5 of them for $25 a couple of years ago.

Don't have any more spares left. I use the URC-10820 10 device learning remote on one frontend, but just changed the other to this: It fells better, has more buttons, and every button in default cable mode is active. And I've already created the config files for it. I have two of the anywhere / topseed ir01 receivers.

The advantage of these is that they are actually bidirectional and can be used as blasters. So far they are the best i've found, after wasting untold time messing with various tuner card's stupid hi-latency options (the geniatech ones being bad enough to never forget) and the total fail one in my antec fusion black case - i'm very happy with it. I have a phillips programmable remote that is nice other than the wheel being sluggish and losing presses. The mediagate MCE remotes I got in the kits with the dongles are IR02BK, they are very fast, great range and only need a couple of buttons altered to work with mythtv.

I bought another one the other day and the guy in the store made a point of scoffing at me and telling me I was using inferior technology. Aparently bluetooth is all the rage with the kids now.