Why public IP address changed for home computer depending on which ethernet port is used on motherboard ?

Started by Anonymous in sci.electronics.design2 years ago 5 replies

ipconfig /all output from home computer: (I manually text-edited/filtered out the IPv4 parts for marvel vs nvidia ethernet port): Today I...

ipconfig /all output from home computer: (I manually text-edited/filtered out the IPv4 parts for marvel vs nvidia ethernet port): Today I used this ethernet port: (marvel): Ethernet adapter Local Area Connection 8: Connection-specific DNS Suffix . : dynamic.ziggo.nl Description . . . . . . . . . . . : Marvell Yukon 88E8053 PCI-E Gigabit Ethernet Controller #3 Physical Ad...


ethernet temp and accelerometer

Started by Fibo in sci.electronics.design1 year ago 6 replies

Hello, Does anyone know of a temp sensor and/or accelerometer that can communicate over ethernet... or maybe a simple microcontroller that can...

Hello, Does anyone know of a temp sensor and/or accelerometer that can communicate over ethernet... or maybe a simple microcontroller that can hook up to some sensors and output the data over ethernet? Much thanks!


OT: Windows 7 seems to have recently killed my ethernet links

Started by Bill Sloman in sci.electronics.design3 months ago 37 replies

I used to connect my printer to my computer over an Ethernet link, but some months ago that stopped working. I replaced the Ethernet cable with a...

I used to connect my printer to my computer over an Ethernet link, but some months ago that stopped working. I replaced the Ethernet cable with a USB cable plugged into the printer's USB port and didn't think much about it. But my wife's computer used to be linked up to our broad-band link (now fibre to the building) by an ethernet link over the mains wiring, and that stopped workin


ethernet magnetics

Started by John Larkin in sci.electronics.design8 years ago 3 replies

Has anyone examined the actual wideband time-domain coupling behavior, like risetime and droop, of typical 10/100 Ethernet magnetics? I plan to...

Has anyone examined the actual wideband time-domain coupling behavior, like risetime and droop, of typical 10/100 Ethernet magnetics? I plan to try a couple that we have in stock, but I was wondering if anyone else has experience. We're considering using them in a non-Ethernet data coupling situation. -- John Larkin Highland Technology Inc www.highlandtechnology.com ...


Simple Ethernet Board with Register

Started by Klaus Kragelund in sci.electronics.design7 years ago 39 replies

Hi For a home automation project, I need to control some devices via an ethernet connection. I could use a raspberry pi, but I am looking...

Hi For a home automation project, I need to control some devices via an ethernet connection. I could use a raspberry pi, but I am looking for something simpler. In some cases I just need to set or clear a relay. Do anyone know of a very simple board with an ethernet Phy on (possibly with a logic output), that can be used for this? Perhaps something like a W5100 based board. https://...


Wiznet

Started by David Lesher in sci.electronics.design3 years ago 5 replies

Mouser has a variety of Wiznet serial-> Ethernet adapters that look interesting, but I wonder if anyone has used them. -- A host is...

Mouser has a variety of Wiznet serial-> Ethernet adapters that look interesting, but I wonder if anyone has used them. -- A host is a host from coast to coast.................wb8foz@nrk.com & no one


Sending data from atmel to ethernet conntroler

Started by en2 in sci.electronics.design7 years ago 8 replies

Hi to all. I was just wondering if someone has done some projects where you have to send data over LAN. I use atmega32 and spi ethernet...

Hi to all. I was just wondering if someone has done some projects where you have to send data over LAN. I use atmega32 and spi ethernet module. Is there maybe some opensource code for this ?


How to Avoid Idle Signal on Ethernet Cable IEEE 802.3

Started by Klaus Kragelund in sci.electronics.design7 years ago 64 replies

Hi I have a system comprised of a computer with a TCP/IP application and a gateway connected to this computer. I need to measure the delay of...

Hi I have a system comprised of a computer with a TCP/IP application and a gateway connected to this computer. I need to measure the delay of the gateway, by measuring the delay on the output of the gateway and the signal on the ethernet line But, the ethernet line is active all the time and I do not have a TCP/IP decoder and it is impossible to trigger on the burried TCP/IP packet. From ...


"HDMI with ethernet" feedback into DVI blowing up monitor ?

Started by Anonymous in sci.electronics.design2 years ago 3 replies

Hello, Here is a short question for you: Is it possible for an asus GT 520 graphics card to cause a "over-voltage" feedback from "HDMI with...

Hello, Here is a short question for you: Is it possible for an asus GT 520 graphics card to cause a "over-voltage" feedback from "HDMI with ethernet cable" to "DVI cable" to monitor Setup was as follows: PC with GT 520 a/v receiver PC with GT 520 Monitor So is it possible the receiver send back a audio/video signal to the GT 520, which then ab


Ethernet magnetics polarity?

Started by Anonymous in sci.electronics.design12 years ago 2 replies

When using a gigabit ethernet PHY. Does it matter if one wires the magnetics with the "wrong" polarity like below ..? (reason being pcb routing,...

When using a gigabit ethernet PHY. Does it matter if one wires the magnetics with the "wrong" polarity like below ..? (reason being pcb routing, and the ethernet transformer isn't straightforward) From this: To this: RJ45 pin1 --- MX1+ ** TD1+ --- MDIA_P RJ45 pin1 --- MX1- ** TD1- --- MDIA_P RJ45 pin2 --- MX1- ** TD1- --- MDIA_N RJ45 pin2 --- MX1+ ** ...


Crapy Broadcom 5708 1G ethernet

Started by Anonymous in sci.electronics.design5 years ago 9 replies

We are using a Dell 2950 with two Broadcom 5708 1G ethernet, but the second adapter (in NAT mode) keep crapping out. A similar test setup with...

We are using a Dell 2950 with two Broadcom 5708 1G ethernet, but the second adapter (in NAT mode) keep crapping out. A similar test setup with 0.1G Realtek works fine. The binary Linux driver for the Boardcom is pain in the a* to setup. I would junk it if not build-in on the motherboard. The up-link port seems OK at least. So, we are looking for a second port. One RT8118 is c


Mysterious ethernet/internet issue

Started by Anonymous in sci.electronics.design2 years ago 23 replies

This is a bit of a long shot, but maybe somebody has seen something like this, I am thinking not but ya never know. Situation is really...

This is a bit of a long shot, but maybe somebody has seen something like this, I am thinking not but ya never know. Situation is really weird: My PC can play World of Warships fine, Company of Heroes via Game Ranger fine. It can browse/websurf the internet fine. It can even connect to another laptop over same ethernet port by pulling out internet cable modem cable and reconnecting to l...


The internet of things, or the internet that sings?

Started by Jan Panteltje in sci.electronics.design3 years ago 4 replies

Whatever, been playing with those POE powered sensors, small box, yesterday and 2day was the turn for a CO sensor. Using a MQ-7 sensor, small...

Whatever, been playing with those POE powered sensors, small box, yesterday and 2day was the turn for a CO sensor. Using a MQ-7 sensor, small boxes arrived, could finally put something together: http://www.panteltje.com/pub/CO_sensor_POE_UDP_PCB_IMG_6203.JPG The upside-down sub-board is an ebay ethernet module, but it only has a ENC28J60 chip on it and I already replaced the ethernet connet...


Wifi chips

Started by Sylvia Else in sci.electronics.design2 years ago 1 reply

Not that I am planning to construct anything, but I was looking at what's available for implementing a Wifi router. I was expecting to find...

Not that I am planning to construct anything, but I was looking at what's available for implementing a Wifi router. I was expecting to find chips that implement the basic Wifi interface, but deliver raw IP or even Ethernet packets (whether or not over a real Ethernet interface). The one's that I've found that do that only handle modest data rates. Those that provide high data rates s...


pretty stange board

Started by John Larkin in sci.electronics.design5 years ago 67 replies

We make a lot of weird products, in VME and little Ethernet boxes. They use D25, D37, SCSI50, SCSI68, and D9 i/o connectors. Some products...

We make a lot of weird products, in VME and little Ethernet boxes. They use D25, D37, SCSI50, SCSI68, and D9 i/o connectors. Some products follow sorta repeatable channel/pin assignments, and some don't. We now have a motley collection of test sets and fixtures, some historical creaky DOS/ISA/Bit3 stuff. The new regime will be one universal test box, and Ethernet connection to the test...


Monitor dies after HDMI to Receiver + DVI experiment, what is HDMI+ethernet cable ???

Started by Anonymous in sci.electronics.design2 years ago

Hello, I have to report this incident. I have been experimenting with Denon 1909 A/V receiver for audio to 7 speakers. This receiver has...

Hello, I have to report this incident. I have been experimenting with Denon 1909 A/V receiver for audio to 7 speakers. This receiver has a HDMI input. So I was curious if sound quality would improve. First I connected toshiba laptop to receiver via HDMI. The HDMI cable was bought new, it has "ethernet" too which I don't know what that means. Later the PC was connected to the rece...


Open source 'Pan Tilt Zoom' for Zoneminder?

Started by Winston in sci.electronics.design8 years ago 13 replies

Given the extortionate prices for decent PTZ Ethernet cameras, this seems like a natural project for you talented EE types. * 'Point and...

Given the extortionate prices for decent PTZ Ethernet cameras, this seems like a natural project for you talented EE types. * 'Point and Shoot' HD cameras are now in the ~U$ 100 range. * Microcontroller boards are cheap and plentiful * Servos are cheap and easy to get My Google-fu has been helpless to reveal an open source Ethernet Pan-Tilt-Zoom camera design. Your thoughts please? ...


interference question

Started by Jon in sci.electronics.design9 years ago 11 replies

I want to run 30 amp 10/2 wire 3 inches from phone, ethernet and cable wires. Will the ac line cause interference with the data/voice lines?

I want to run 30 amp 10/2 wire 3 inches from phone, ethernet and cable wires. Will the ac line cause interference with the data/voice lines?


Internet of things, todays box of pandora, eh tronix

Started by Jan Panteltje in sci.electronics.design3 years ago

http://panteltje.com/panteltje/pic/humidity_pic_udp/ because the ethernet chip gets hot, I had to put the sensor outside the box, so the...

http://panteltje.com/panteltje/pic/humidity_pic_udp/ because the ethernet chip gets hot, I had to put the sensor outside the box, so the indicated temperature is correct. Old serial mouse cable, 9 pole D connector, there you are. Works


MicroZED

Started by John Larkin in sci.electronics.design7 years ago 119 replies

Has anybody used the MicroZED? It looks like a good subassembly to use on a controller board. The documentation, especially on...

Has anybody used the MicroZED? It looks like a good subassembly to use on a controller board. The documentation, especially on mechanicals, is spotty. We have an upcoming project that needs a uP, FPGA, Ethernet, DRAM, all that stuff. It's tempting to buy a little board that has all that done and working, running Linux out of the box. -- John Larkin Highland Technology...