Hello, There is a unix version of desklink (dl.c) and it compiles just fine under raspbian. I've been using it on the GPIO serial port on the pi with a level converter (a max232 chip) connected to a model 100. It doesn't do hardware handshaking but xon-xoff works at 9600 baud. The good USB-serial adapters (i.e. with the right voltage output and hardware handshaking) are rather pricey in Sweden, almost as much as the Pi itself. The cheaper ones only give ttl but I use one to communicate with the pi, via the GPIO and minicom since my usual portable doesn't even have a real serial port.
We have another headless pi with a 3G Huawei modem and a DLINK EWA-140 wifi stick, both connected via a powered USB hub. When powered on, the modem connects, there is a bunch of NAT translation and the thing becomes a wifi-hotspot, connected to the Internet via the modem. It's something we use when we're sailing or at the summer house. We just turn it off by unplugging the thing and we haven't had any problems yet and it's run for over two years like that..... Your mileage may vary..... jonathan.y...@mykopat.slu.se ________________________________________ Från: M100 [m100-boun...@lists.bitchin100.com] för Jan-80 [ja...@scarlet.be] Skickat: den 2 januari 2016 15:56 Till: Model 100 Discussion Ämne: Re: [M100] Raspberry Pi as TPDD Hi, 2. LaddieAlpha on Mono were the the names I was looking for. If it works, I don't care about name or environment. I was just pondering aternatives. 4. /dev/ttyS0 is the first USB-port, then? Or is it the USB-port + a USB-2-serial adapter? 6. How do you manage power cycles? 5. If you build your own serial port, isn't that smaller? -- Greetings from the TyRannoSaurus Jan-80 On Fri, 1 Jan 2016 17:22:11 -0500, Stephen Adolph wrote: HI Jan, I am currently running a raspberry pi with laddieAlpha, and it is working well. Why do you want to use Desklink? In my case, Laddiealpha is listening to a TCP port however, not serial. Certainly it could use the /dev/ttyS0 port if you wanted to. John H is the expert here. ..Steve On Fri, Jan 1, 2016 at 10:46 AM, Jan-80 <ja...@scarlet.be<mailto:ja...@scarlet.be>> wrote: Hello, A happy New Year 2016 to all of you. I would like to use my old Raspberry Pi - an early Model B with only 256 MB RAM - as a TPDD replacement. It would also allow anyone with any type of old Raspberry Pi to do so. I am sure that, with the presentation of the Pi2, a lot of hobbyists are going to sell their first-generation Pi's and they can be picked up really cheap. Software: there have been 2 ways reported on this list on getting a TPDD emulator to work on the R.Pi. A third one was never mentioned, but might be possible also. Correct me if I'm wrong 1. re-compiling Desklink from the original source for the Raspbian environment. 2. running the Windows.NET based version of Desklink in the .NET-compatible environment of the R.Pi. (sorry, forgot the name) 3. is it possible to run a Desklink in DOS-emulated environment? (Just an idea of mine...) Hardware: come to think of it, some hardware stuff must also be considered. 4. Serial link simple: a USB-to-serial adapter does the trick. I have one, but don't know if it will work. How do I test this? 5. Isn't it possible to use the I/O pins from the R.Pi as a serial port? Does the TPDD need the control lines? 6. If you use the R.Pi as a TPDD, you're likely to turn it off an on as one. But the R.Pi is a computer, and you could ruin the filesystem by doing so. Isn't it better to use a hardware on/off button instead of simply pulling the plug? Like this one: http://www.raspberry-pi-geek.com/Archive/2013/01/Adding-an-On-Off-switch-to-your-Raspberry-Pi
