Wi Fi Jobs

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Hourly - Expert ($$$) - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
***Eye-Fi is a company based in Mountain View, California that produces SD memory cards and SDHC cards with Wi-Fi capabilities. Using an Eye-Fi card inside a digital camera, one can wirelessly and automatically upload digital photos to a local computer or a mobile device such as a smartphone or tablet. http://www.eyefi.com/
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
Post Support: • Make sure the users are able to access their system via wired/Wi-Fi. • They have access to all servers/printers/scanners/applications. • In case, they have issues, onsite engineer has to troubleshoot. • If Onsite Engineer is unable to resolve then we have to loop in Solution Architect team Switch Count: One 3850C Switch (48Port) Regards
Skills: Cisco Certified Network Professional (CCNP) Cisco Certified Internetwork Expert (CCIE) Cisco Certified Network Associate (CCNA) Cisco IOS cisco routers
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
We have a script that connects a Web Call to USB device. The main scenario is, we have a tablet application, which is on WiFi, It sends a URL call via local Wifi to some Lighting Hardware connected via USB to a RaspberryPi, which is running Apache/PHP etc. So from a browser you can type: http://192.168.0.3/serial/model.php?communication_board_command=chr(2).chr(0).chr(0).chr(0).chr(2).chr(5) It will go to the script, and send a message to the USB device. The issue is, that when we send many of these URL calls, once in a while it freezes randomly with no apparent pattern, it seems the USB port or connection is left open or something, that does not allow the next call in. Then it will start working again after a next call. So, we want to remove any chance of this freeze. The simple PHP code we are using is: <?php if($_GET['communication_board_command']){​ ini_set('display_errors', 1); $codes = explode(",",$_GET['communication_board_command']); foreach( $codes as $code){​ eval("\$code = $code;"); echo "\n lighting-code-sent"; echo $code; file_put_contents("/dev/ttyUSB0", $code); file_put_contents("/dev/ttyUSB1", $code); }​ echo "\n php-ok1"; }​ ?> So this works fine, and a command is sent to the USB, and the lighting board connected lights. However, sometimes it does not, and the call is ignored, or it stays lit with the old code sent when a new one is sent. We have tried sending the code twice, or with a usleep delay, or via calling a redirected script twice. We have tried with fopen(), fwrite(), fclose(); But it has no effect... sometimes there is still a Pause. --- If we run the same script on Windows, WAMP setup, it works fine, it does not seem to have the delay as on Linux / RaspberryPi, The script on Windows is: <?php error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED); if($_GET['lcode']){​ ini_set('display_errors', 1); `mode com3: BAUD=38400 PARITY=N data=8 stop=1 xon=off`; $codes = explode(",",$_GET['lcode']); foreach( $codes as $code){​ eval("\$code = $code;"); echo "\n lighting-code-sent"; echo $code; file_put_contents(com3, $code); }​ }​ echo "\n php-ok"; ?> As above we can set the Baud, Parity etc. But on Linux, it does not seem like this is done, when trying the same code. Or its set somewhere else previously? And it calls the COM port, via USB/Serial drivers. It just seems on windows, the socket call is dealt with differently, and the issue will not happen. --- In anycase we need help with this code on Raspberry Pi, to have the Web Call sent but not have any Freezes / Pauses, so that the USB call, is opened and closed, and can have multiple calls in a regular frequency, as per any local web call. - Another issue is when we plug in the USB cannot be sure if it will go to /dev/ttyUSB0 or /dev/ttyUSB1 which is why have them both there, or if the USB is taken out, sometimes its lost if reconnected... so another task is to always get the USB to ttyUSB0 and allow the script to call it. So for now we need help with these 2 points, and there might be others, as the projects progresses, as we need to create a very stable system for these Web Calls. As above its currently done in PHP, but I dont mind using Python to do it, or other scripts / executables, but we do need to have full understanding and control of whats happening. Can be Pay by the hour or a fixed price.
Skills: Wi-Fi Bash shell scripting Debian OS Linux System Administration
Fixed-Price - Intermediate ($$) - Est. Budget: $50 - Posted
These libraries will give me several data (check the additional file) : IP: the current IP of network (IP4 and IP6) GSM: the current mobile operator Bluetooth: the list of devices which connected to the phone by bluetooth Wi-fi: the current wi-fi network's name Location: location coordinates of the phone MobileID: the system-id of the phone I will pay only if all of the data work correctly.
Skills: Android App Development
Fixed-Price - Expert ($$$) - Est. Budget: $250 - Posted
I am looking for an experienced circuit designer, to work online with me to create an automation board, based on Arduino technology, which have Wi-Fi, wireless, LAN, GPS, sensors capabilities. I know the components which I need to be available in this PCB.
Skills: Arduino Electronics PCB Design
Hourly - Entry Level ($) - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
Cloud based (AWS) hosting our FreePBX switches, security/VPN, Wi-Fi controllers, and applications 2. A Secure internet connection too each property 3. ... A small on-premise system consisting of internet modem, Cisco router & switches, ATAs, Wi-Fi APs (UniFi), We have a virtual NOC and are in need of a senior T3 to join our team part-time (to start), assist to monitor, troubleshoot, secure, develop/automate monitoring and maintenance tools, advise on products/implementations, proactively maintain the infrastructure, and fix issues re-actively. ... We are adding new products (SMS, access control/NFC, web/mobile interfaces, and a new Wi-Fi portal) which the ideal candidate will find interesting to work with, explore, design, and build with us.
Skills: Asterisk cisco routers Freeswitch Network Administration Network Security