I wonder how much the radio link would cost to build...
I know that a radio link has been brought up on the mailing lists many times and it would be interesting if someone got it to work.

I hope it's not too complicated, I don't know much about serial communication or radios.

IMHO, the radio link would be a lot more usefull than the telephone cable link, I just hope they're not so busy making phone cables they don't have time to make any radio links.

ok, that's enough for now.

if you'll note, the ir link has already been done, the LED deal is a simple rip, and the phone cable is quite useless. sorry, but what the HELL is this news item doing here?! perhpas if they HAD made the radio link or the expander and were selling it it'd make sense, but what they do have is simply rips and stupid stuff. sorry, but i've gotten pesimistic and angry in my old age.

-KAKE
IP yeah, go ahead and delete this just because i said 'hell'

Our IR link has new features, that others do not have. The LED light is meant to be an easy project for beginners, and it is just that. The phone cable is quite useful, in that if you can't reach your calc-calc cable to the persons calculator that sits behind you and you want to play a multiplayer game, you can use whatever cable length you want, with TIphoneLinc.

Hell isn't a swear if you're agnostic :)

--BlueCalx

This "invention" might only have use if the schematics were free. I sure as H*EL wouldn't pay money for it, especially $20.

Hey I was one of those stupid people who actually tried to build the old RF transmitter. One wasted afternoon later and $30 worth of coils etc in front of me I discovered it did not work:(.
I am just curious what channel is this new one going to operate on? The old one operated between 90and 100 MHz if I remember correctly. If this thing would really go half a mile I know a lot of people in my school who would get really pissed when their walk mans stopped working (well that could be bonus I guess:-).

Oh well I just thought I would add my two cents worth. Feel free to correct me I am not an electronics wizard and probably made some mistake here.

-Brilldon (David G)

Ummm...the person never said they had made a working one, they just said it would be nice.

Since ticalc.org is more important than my chemistry homework, I'll ask a question here instead of doing necessary work:
Just a crazy notion here, but could I call my friend up and send programs to his/her calculator? Someone should try that :)

--BlueCalx

Somehow Nick, I think the +10 or so volts your phone line carries during a call would screw your calculator up a wee bit.

The puts out 12 volts normally. It jumps up to 24 when it rings.
That is my 2 cents worth.

...and just think about us in Sweden and a large part of Europe; You'll find about 60 Volts on the phoneline when it's ringing!

Well, the phone line has 4 cords in it: 2 for power, which is only used for some phones, and 2 for sending & receiving. I am not an expert, but I think it can be done.

Ah, American phone systems use 90V AC when ringing, 48V DC when on hook, and around 5V DC when off hook. I'm currently trying to work on an interface with a phone line directly from the calc, and this is my greatest problem. I _know_ that 90V AC would _not_ be good with a TI-89. I intend to decode DTMF (touch tone sounds, or the sound you hear when you press a number button), as well as transfer DTMF from the phone line.. Apparently, I'm going to have to do it with a speaker (lossy), without directly accessing the phone line. Ah well.

No, not without a modem. Phone lines only carry analog signals, plus you'd need to be able to make dial tones (or pulses, if your telephone system supports them) and handle the voltage that comes across when the phone is off hook.

Gee Whiz. Now when Im in math class I can play tetris with people in phys-ed. horray. Now if somebody would think of a splitter type thing so when you ssend a file it goes to 6 different calcs I might be interested.

i like the splitter idea but.. i dont know how you get it to handle the data.. how bout a personal hub ffor each calc that handles the info on a single line in and out then use something like prosit if i understand that right to sort throgh the input. say the hub sends the inputs in separate bursts of info like input 1 then input2 then input 1 again.

I like the idea of a Hub for ti calcs. This would be quite fun and intersting. I know i would make a lot of nerds in my school jelous if suddenly in class a pull out an 8 port ti calc hub, and hook everyone up for an all out gaming match in class. Like 8 person racing game, a unique tetris game, or something along thoose lines (Massively Multi-Player). Or you could have the hub connect to the modem, and then have 8 people go online instead of just one. The hub could also come in differnt colors to match the new ti-imac cases. If anyone made that i would buy it.

no offense or anything, but I think someone has been smoking too much crack. Heh, well I guess that hub would be cool, but we would have to engineer a new protocol because a hub isn't smart, it doesn't know where packets are going. All it does is just send the packet to all running hosts and if the host recognizes it's IP in the 'sent to' packet, then it sends one back, an ACK...All of us who have hacked know it all......well I better get back to my memory mapping C program in linux, buh bye!

-my 1w0 fvck1n6 53n53! *(=-)

No I do not smoke crack.

Hmm. I'd think you'd have to write a special game that allows more than 2 players. Seems like an awful lot of work.

yes. the idea of a hub is great, but it would be very difficult to construct a working one

gee, now doesn't that sound just a wee bit like Grant Stocky's CalcNet that nobody could ever seem to get a hold of? No further comment...

hey if you got a link for me id appreciate it i have no idea what your talking about. im new to ticalc but not to ticalcs so this is legit im serious is this in the archives?