Forums Search for: Wireless
Digi or Lantronix
inHi all, I am about to add ethernet to a device with a serial port and I am trying to decide which canned solution I should go for: Digi (Me...
Hi all, I am about to add ethernet to a device with a serial port and I am trying to decide which canned solution I should go for: Digi (Me and Wi-Me) or Lantronix. Any suggestions and hands-on experiences with both? What puts me off with Lantronix is that they have different formfactors for wired and wireless and that the driver installation on the PC requires .NET to be installed (a w...
wireless serial Radio-Link
inHi, I'm looking for a wireles serial radio-link that runs Full-Duplex. Does any one know about one out there? It's for a mobile application,...
Hi, I'm looking for a wireles serial radio-link that runs Full-Duplex. Does any one know about one out there? It's for a mobile application, hence size and power consumption should be ideally as little as possible while coping with distances of at least up to 400 metres. thnanks. stefan
Testing strategies for 802.11 networks
inHi, I require a testing strategy for an 802.11 wireless network. The objective is to provide some sort of QoS. If you know of any...
Hi, I require a testing strategy for an 802.11 wireless network. The objective is to provide some sort of QoS. If you know of any existing testing strategy/framework or something suitable at least, please let me know. Suggestions appreciated. Regards Patrick
Using TS-7200 to build a router?
inHi, I was wondering if it is feasible to use a TS-7200 SBC to build a router with wireless capabilities ?
Hi, I was wondering if it is feasible to use a TS-7200 SBC to build a router with wireless capabilities ?
mobile processors
inHiya ... I'm looking for information on processor cores used in mobile/wireless devices ... a number of friends i have floated the idea...
Hiya ... I'm looking for information on processor cores used in mobile/wireless devices ... a number of friends i have floated the idea setting up shop and developing on them. Information such a players in market? IDE's? etc ... so far ARM and Codewarrior seem to have come up most, but i'm seeking more input ... Sorry for the huge scope of the question ... but thats kind of the point ...
2 Byte (16Bit) Mini-Float
inHi I am hoping someone might be able to help point me in the right direction. I have an embeeded application running in a PIC in which is...
Hi I am hoping someone might be able to help point me in the right direction. I have an embeeded application running in a PIC in which is sending sensor data over a wireless network. We want to keep the number of bytes in each packet sent to an absolute minimum. Some of the values we want to send back and forth are Floats which takes 4 bytes. We'd like represent some of the values ...
Ideas for Network of Microcontrollers
inHi, I want to try and develop a network of micro-controllers that can interact and share data with each other in real time and coordinate...
Hi, I want to try and develop a network of micro-controllers that can interact and share data with each other in real time and coordinate together to perform a function. I want to use a wireless mode of networking and not the traditional wired CAN network. However I need to convince my supervisor of the possible applications it may have and its advantages over the wired version. I am stuck at t...
PDA as "X terminal"
inHi, I want to use sme WiFi-enabled PDAs as "wireless terminals". I.e., in much the same way that X terminals operate (though obviously not...
Hi, I want to use sme WiFi-enabled PDAs as "wireless terminals". I.e., in much the same way that X terminals operate (though obviously not using XDMCP, etc. -- OTOH, that would make life a lot easier! :> ) A browser interface is out because the browser has functionality that the application can't disable (e.g., history, font selection, etc.). I've never used "terminal services" (the
RS232/485 impromptu survey.
inHow popular is that old standby async/sync serial data in new embedded designs? I know there are lots of other technologies coming into play...
How popular is that old standby async/sync serial data in new embedded designs? I know there are lots of other technologies coming into play from ethernet to wireless, USB, etc., but what percentage of your new designs are using RS232 or RS485? I still see it on almost every project. If not as an intended interface then at least for debugging. Your comments are appreciated. Scot...
Development tools comments
inHi Experts, Let me start by providing some background. We have designed an ASIC: 8051 + non standard peripherals (timers etc) + FLASH + RF...
Hi Experts, Let me start by providing some background. We have designed an ASIC: 8051 + non standard peripherals (timers etc) + FLASH + RF frontent for a product used in wireless communications. The 8051 currently has a single breakpoint register, and we have managed to integrate with the Keil debugger (single stepping and breakpoints seem to work OK) Anyway, we are now looking at t...
make phone calls from fpga. is it possible?
inHi, Is it possible to build a unit on fpga where alerting pre-recorded messages: sms, voice messages can be sent using possibly the...
Hi, Is it possible to build a unit on fpga where alerting pre-recorded messages: sms, voice messages can be sent using possibly the ambiant wireless network? if yes, how? i am not looking for the hardware architecture, i can work this on my own. i am rather looking for the means to achieve this: what kind of theory in the context of communication and broadcating in general i should read ab...
Dog-ish ARM performance?
inHi, I have a chance to repurpose some wireless displays for an application, here. Presently run WinCE 5 (?). I believe there is a PXA270 @...
Hi, I have a chance to repurpose some wireless displays for an application, here. Presently run WinCE 5 (?). I believe there is a PXA270 @ 300MHz under the hood. But, the performance appears *abysmal*. Should I attribute this to MS's typical ineptitude at extracting performance from processors? (I have no first-hand experience with WinCE but to assume it follows boldly in the MS t...
OT? PSP development
inHi, I'd like to write a little app to allow a PSP to be used as a "wireless display/terminal". I've already developed a suitable framework...
Hi, I'd like to write a little app to allow a PSP to be used as a "wireless display/terminal". I've already developed a suitable framework for the PocketPC platform and would like to try for a common framework that I could extend to things like PSP's, small tablets, smart phones (e.g., winmobile), etc. Any pointers to SDK's, etc.? The hits that come back from search engines seem to b...
Tablet/phone cameras
inHi, I currently have a kiosk application that I would like to port to a wireless, *portable* implementation. So, small tablets or (ack!)...
Hi, I currently have a kiosk application that I would like to port to a wireless, *portable* implementation. So, small tablets or (ack!) smart-phones (with the phone functionality permanently and irreparably disabled) seem a good choice. Phones being better suited in terms of size (want to tuck this into a shirt-pocket while not in use). But, I rely extensively on barcodes to provide...
Remote Monitoring of embedded devices
inI have an application where I there may be several automatic pedestrian doors (the sliding and swinging doors you see in airports, supermarkets,...
I have an application where I there may be several automatic pedestrian doors (the sliding and swinging doors you see in airports, supermarkets, department stores, etc.). Each installation shall be able to communicate to some gateway/logger/concentrator/router, whatever you call it, whether it be via CAN, RS232, and one day, even wireless, to the gateway. This gateway then will communicate...
*Cheap*/lightweight IDS algorithms/strategies/policies
inHi, I have a modest sized distributed system (~100 processors) that I am trying to protect against intentional acts of sabotage,...
Hi, I have a modest sized distributed system (~100 processors) that I am trying to protect against intentional acts of sabotage, theft, etc. [The current implementation is *wired* though that will probably change in the future to a hybrid wired/wireless approach. I'll deal with those issues, later] I am not concerned with intrusion *prevention*. The stacks and protocols are hardene...
Long distance comms
inHi I have a requirement to communicate between a slave device and a master where the distance between them is approximately 3km. I don't need...
Hi I have a requirement to communicate between a slave device and a master where the distance between them is approximately 3km. I don't need high speed comms, 10-20kbaud is sufficient. Unfortunately I don't have the luxury of being able to use repeaters, fibre optics or wireless. If RS422 was spec'd beyond 1.2km then that would be ideal. It seems that CAN will work up to 6km at bit rate...
WiPort problems
inHi Embedded Group- I'm having a problem with my Lantronix WiPort module and I'd like to hear some non-Lantronix advice if that's possible. ...
Hi Embedded Group- I'm having a problem with my Lantronix WiPort module and I'd like to hear some non-Lantronix advice if that's possible. I'm not an experienced user of wireless hardware and software. I had a very early WiPort on a WiPort eval board from 2004. It stopped working after a few hours of use (WLAN ACTIVITY LED is held steady on whereas it would flash when it worked). ...
Chipcon/8051 sanity check
inHi, I have a problem with a timer interrupt on a CC1110 (8051 with wireless interface) that I have been staring at for an hour with no...
Hi, I have a problem with a timer interrupt on a CC1110 (8051 with wireless interface) that I have been staring at for an hour with no success. 8051 is not a strength of mine so I would appreciate your comments - Given the (very!) simple program: char x; int main( void ) { char c = 0; ____IEN0 &= ~pdBIT_7; ____SetClockSource(); // Setup processor clock. ____vInitTimer3( 100...
Minimal Win2k/XP Install - Not using Embedded XP
inHi, we have been doing a lot of work with normal XP/2000 installs. Ideally we want to ditch harddisks and run off flash disks... so we have...
Hi, we have been doing a lot of work with normal XP/2000 installs. Ideally we want to ditch harddisks and run off flash disks... so we have bought some x86 embedded boards with Embedded XP images, however we have asked our supplier to make changes (such as add certain device drivers for 802.11 wireless etc) but they are charging a small fortune each time. It would be nice to have a smaller...