Yup simplex it is. I've never played with GSM but could it sustain a
continuous 250kbps stream ? I always thought that mobile phone
applications were rather low bitrate. Also, can these modules be found
in small quantities ?

____________________
Tobie Horswill, R&D

Le Projet Ex Machina
103, rue Dalhousie
Quebec, PQ
CANADA
G1K 4B9

tel.: (418) 692-5323
fax.: (418) 692-2390=20



> -----Message d'origine-----
> De : pic microcontroller discussion list=20
> [mailto:PICLIST@MITVMA.MIT.EDU] De la part de Vasile Surducan
> Envoy=E9 : 11 septembre, 2002 02:17
> =C0 : PICLIST@MITVMA.MIT.EDU
> Objet : Re: [EE]: Replacing RS-485 with high speed RF
>=20
>=20
> not a direct answer but maybe will be helpfully if you need=20
> only simplex
> communication: what about sending datas in packs using a=20
> standard GSM module ( or GSM phone which may be cheaper ) and=20
> the SMS ?
>=20
> regards,
> Vasile
> http://www.geocities.com/vsurducan
>=20
>=20
> On Tue, 10 Sep 2002, TH wrote:
>=20
> > Hi,
> >
> > I have an already working design built around a PIC's usart=20
> using an=20
> > RS-485 transceiver (receive only). I have very little RF=20
> knowledge and=20
> > don't have time to both learn and develop this myself for this=20
> > particular project so integrating some existing module is=20
> the way to=20
> > go in this case. Does anyone know of a short range (<100')=20
> high speed
> > (>250kbps) OEM module which I could integrate into my circuit to=20
> > quickly replace the RS-485 wired link? Something using the=20
> 900MHz or=20
> > 2.4GHz bands preferably. All I was able to find was=20
> complete enclosed=20
> > modem or WAN/LAN systems designed for rather long range and low=20
> > (115,200bps) or rather high (10Mbps) bandwidth applications but=20
> > nothing short range and high bandwidth in an OEM package. Any ideas?
> >
> > kind regards,
> >
> > ____________________
> > Tobie Horswill, R&D
> >
> > Le Projet Ex Machina
> > 103, rue Dalhousie
> > Quebec, PQ
> > CANADA
> > G1K 4B9
> >
> > tel.: (418) 692-5323
> > fax.: (418) 692-2390
> >
> > --
> > http://www.piclist.com hint: The list server can filter out=20
> subtopics=20
> > (like ads or off topics) for you. See http://www.piclist.com/#topics
> >
> >
>=20
> --
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>=20
>=20

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