Electrical Engineering Stack Exchange
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Questions tagged [communication]

Exchange of information between devices. Communication can be wired or wireless.

The "communication" tag is very general. In many cases, it's better to tag a question with a more specific tag, such as (for example) , , , , , , , , , , , , , , , , , , , , , , , , , , , , or etc.

1394 questions
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USART, UART, RS232, USB, SPI, I2C, TTL, etc. what are all of these and how do they relate to each other?

As a novice electronics hobbyist, I have heard these terms and more being thrown around everywhere. At its root, I understand that they are all based on communication between devices, computers, peripherals, etc. I have a basic understanding of how…
capcom
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How can I make a device that will remotely disconnect an Ethernet port?

In some environments it can be helpful to have the ability to turn off an Ethernet port remotely. One case of this is in a public building where you might have a computer kiosk using the port once a week, but the rest of the time it is open for…
David Sabalesky
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Information regarding DC wander

I was just going through a text book on digital communication where something related to ac coupling was mentioned.It was mentioned that if a long stream of one(1) is encountered at the receiving end then an erroneous bit is supposed to occur (sorry…
nvade
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connect my rc car controller with my computer

I am new to hardware. For my first project, I want to connect my RC car controller with my computer so I can control my RC car in my PC. What kind of things (hardware, cables, tools, as well as knowledge) do I need to acheive this goal? Is it…
kim taeyun
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RX/TX labeling standard

I'm familiar with the idea that RX means receive, and TX means transmit. Therefore, if I'm wiring two IC's together, feeding the TX of the sending chip into the RX of the receiving chip makes sense. How does this labeling standard extend to other…
zplizzi
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Is it possible to transmit square waves EM signal through air?

Can we transmit any signal other than sinusoidal through air, if yes how and if no why ?
Dhiraj Dhakal
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How to read/generate phase-shift-keying (PSK)

I'm trying to reverse engineer a piece of electronics that seems to be using ~1Mhz differential phase shift keying to send a signal over a 2-wire line that's also used for low-voltage power. So newbie question here, but how do I both encode/decode a…
None
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What is Telemetry?

What Is telemetry? I understand that telemetry is used for measuring, transmitting and receiving. I have two questions: Is my assumption correct or not. Where is telemetry used and what is its main functionality? Is telemetry used for only…
Gouse Shaik
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Regarding Multiplexing and Multiple Access

Is Time Division Multiplexing and Time Division Multiple Access same if not what is the difference between them? Similarly between FDM and FDMA.
Enthusiast
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Cheap long range communication?

The communication would be used for communicating between a computer and a Raspberry Pi/arduino board. The range should be about 500m in city area, and the data rate some kB/s. In the RF segment there is the xbee pro which would be perfect, but is a…
user2613971
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How do a single-side band signal and a double-side band signal look like in time domain?

I understand what SSB and DSB mean in frequency domain. For SSB, the signals appear at one side of the carrier frequency. For DSB, the signals appear at both sides of the carrier frequency. So now suppose the signal is a sinusoidal Acos(w1t) at…
Underdog
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Bandwidth for a single tone

If I am using a channel only for morse code (CW), with one frequency and interruptions for dots and dashes, is the necessary bandwidth of the channel twice the audio frequency of the tone used for CW?
Ken - Enough about Monica
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Is "unidirectional" compatible with "full-duplex"?

In UCIe whitepaper, there is one paragraph describing the lanes in a cluster, as below: The unit of construction of the interconnect is a cluster which comprises of N singleended, unidirectional, full-duplex Data Lanes (N = 16 for standard package…
bruin
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What is S/P and P/S converter in communication?

I have a scheme that in it I have D/A which is digital to analog converter, and A/D but what is it P/S and S/P ? And what is it used for?
0x90
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What is the technology that transmits voice in 3G networks?

Sorry for having naive questions and using improper terminologies. I heard that 2G networks are said to transmit voice only, while 3G both voice and data, and 4G data only. When the 3G coverage isn't good enough to make calls, a mobile carrier…
Tim
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