Questions tagged [server]

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3answers
61 views

Do data centers use single phase or 3 phase to power their infrastructure?

3 phase is more efficient than single phase for converting AC to DC; since after rectification stage the signal requires less regulation. Do some data centers use 3 phase power to take advantage of ...
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2answers
64 views

DIY Computer UPS - Smoothing DPDT Relay 80ms Cutover

I was shopping for a small UPS for my home networking lab closet; total load under 300w at 120v. But then realized I have a spare AGM car battery, 12v solar panel maintainer and 12-120v sine wave ...
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4answers
62 views

Do usb and vga controllers consume power if there are not devices connected to them?

Let's consider the following situation. There is a server, for example supermicro, that has 4 USB2 ports, 4 USB3 ports, and 2 VGA ports. At the same time we don't use these ports, I mean there are no ...
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0answers
25 views

How to send a PUT request from stm32 using esp8266?

I've started this project in which I want to send the data regarding the condition of a few sensors interfaced with an STM32 microcontroller to a web server hosted on heroku but don't know how to do ...
0
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1answer
32 views

Altium Designer Libary Ref Field Missing

I'm trying to create a MySQL database for my Altium company library. I've created a MySQL database with utf16 encoding that contains tables for each category of components. Here is an example table: <...
2
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2answers
280 views

'Jump starting' Lite-eon Server Power Supply [closed]

I have a LITEON Server PSU which I would like to use for an electronics project. For the PSU to 'start up' I assume I need to connect a certain combination of the small pins (that can be seen on photo ...
0
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1answer
57 views

Download a file from web browser to Micro SD card [closed]

I am trying to do a web server to store a file (mostly MP3) on a Micro SD card. I have stm32f407-discovery and w5500 and a Micro SD card reader (unbranded manual pcb drawed). How can I open a web ...
0
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1answer
22 views

send data to server using GET method and sim900a

I am trying to send my data to HTTP server using GET method. When i am sending some hardcoded data manually it is getting stored in database successfully. ...
0
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2answers
176 views

TCP data vs HTTP data over GSM modem

I am using M95 GSM Modem for remote data communication with the server. The server-end persons want me to use HTTP data connection. Another embedded guy has suggested to use sockets and TCP data for ...
2
votes
1answer
432 views

MQTT Broker vs Server

I am trying to learn MQTT technology. What I understand so far, is that MQTT is based on a 'Broker' that does the 'Publish and Subscribe' of messages and topics. I wonder if it's another name for '...
8
votes
1answer
695 views

Command line interface for KiCAD

Is there a way to produce Gerber files from command line in KiCAD (Linux/Unix) or a tool which can do it for me? The same question for SPICE netlist and BOM xml? I need it to automate this process ...
0
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1answer
407 views

Synchronizing oscilloscope to reference time

Consider a lab that contains an NTP (network time protocol) time server that synchronizes events between multiple workstations connected to the same network. I have a Tektronix DPO4034 oscilloscope ...
0
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1answer
461 views

How can I test TCP/IP AT-Commands with server?

I'm currently using SIM868 to make a GPS tracker, I wanted to know how to test tcp/ip protocol with a server. I do not have a server but got a website and a wifi connection(DIR-600M Router) , Is ...