Tagged Questions

0
votes
1answer
102 views

Problem connecting UART Wifi Module to PC

As refereed to my old question ( Connect UART WiFi module to PC ) which has been solved that days, I have a UART Wifi module ( this one ) and unfortunately I have problem again ! The point is, this ...
0
votes
3answers
112 views

A device that wirelessly, securely posts to a server in response to door opening: off the shelf or custom-make?

I am looking for an off the shelf component for a project I am currently working on. Due to the nature of the project I cannot go into much detail about the project itself, only give a high level ...
0
votes
1answer
313 views

Boosting wifi antenna with aluminum foil: ideal placement/size?

On more than one occasion I have successfully (and significantly) improved the wifi signal a desktop computer was getting simply by taking a flat sheet of aluminum foil and curving it into a ...
-1
votes
1answer
115 views

Wifi device with directional antenna and programmable power [closed]

I need to set up a cheap device for an experiment that sends Wifi signal in a single direction but also allows me to set the power level on the Wifi signal. I've tried to find a solution and looked ...
0
votes
1answer
166 views

Bluetooth or Wi-Fi or other protocol signal detector

What's the best way to have a Bluetooth/Wi-FI/other kind of protocol signal detector? What I'm looking it's something like this: New Bluetooth signal detected Wakes up MCU (e.g. by interrupt pin) ...
7
votes
1answer
987 views

Suggestions for 1-5 km range wireless communication?

I am developing a VOIP application. Most clients use a wired Ethernet connection, but some of the clients need to have a wireless connection. Currently the core board is using: Cortex-A8 (TI AM3359) ...
2
votes
1answer
268 views

Using WiFi adapter to capture different wireless traffic

I wish to be able to read wireless traffic sent from my wireless keyboard. At first I thought I could just buy some board like Arduino, plug in a module like nRF24L01+ and use this combo. Since I'm ...
1
vote
2answers
783 views

Web connection through Arduino with WiFi

I'd like to be able to make an HTTP request on the web to a specific server from my Arduino. I already have a Wireless SD Shield, and I am wondering if what I want to do is possible / what I would ...
1
vote
1answer
201 views

WiFi Signal Boosting

a couple of days ago I had a discussion with a colleague when he told us he purchased a "WiFi Booster Adapter+Antenna". It was claimed that by plugging it in his USB and using it instead of his ...
3
votes
3answers
414 views

Wireless Sensor to Internet

Looking for a low cost implementation to post ambient temperature readings from a sensor to servers via a COTS router. 1) Have a temperature sensor connected to a micro controller which sends data ...
1
vote
3answers
151 views

Sending and getting commands through the Internet

I have a little chopper (adult toy to be exact) that can be controlled by the controller within 30 metres. What I have in my mind whether I can send commands to this toy chopper though the Internet, a ...
2
votes
2answers
1k views

Connect UART WiFi module to PC

I recently bought a UART WiFi module ( this one ) and configured it (wireless configuration method) with right SSID but wrong password( and I don't know what it is ). The problem is that I can't reset ...
6
votes
2answers
515 views

How to build a cheap device to determine where Wi-Fi interference is coming from?

In this post, the ServerFault guys use a fancy tool to map out the WiFi spectrum under normal conditions, with a microwave running, and with a baby monitor on. The baby monitor and microwave cause a ...
-1
votes
1answer
239 views

Need an advice with choosing FPGA kit to be used for wireless application [closed]

I need to implement a Wireless (802.11n) firewall as a FPGA application, so basically what i need is an FPGA kit that can handle the trans-receiver part for me, while giving me the ability to process ...
0
votes
0answers
142 views

Logging wifi chip address?

I would like to use an Arduio + wifi shield to grab unique mac addresses of any wifi chips within range, these will then be sent to my home server. Right now my chip creates an ad-hoc wifi network ...
3
votes
2answers
343 views

Anyone got any idea what type of antenna these Wireless routers that have no “visible” dipole antenna on the outside use?

Referring to these type of wireless routers' antennae like : Netgear N150 and Linksys E1500
2
votes
3answers
1k views

Embedded Systems Wi-Fi

I want to develop a product to make Wi-Fi to connect PC <-> MCU <-> MCU. I started looking for Wi-Fi modules with the stack that I need already implemented and some kind of AT commands interface ...
2
votes
2answers
133 views

Why CDMA is able to use whole band, when Wimax is subchanneled?

Original wording of question: What is fractional network access? I'm having trouble figuring out what this term actually means, though I can find a ton of whitepapers about how ...
13
votes
9answers
7k views

Ideal WiFi to Serial (or SPI) bridge?

What are some recommendations on an ideal WiFi to Serial bridge? My ideal qualities would be: Simple connectivity, SPI or Serial Reasonable fast speed, at least 1mbit/sec ideally (though probably ...