New answers tagged communication
2
votes
Inductor of twisted pair cable and of a wire
The inductance of a lone wire in free space is something of a misnomer.
There are useful measures of free-segment inductance, but it must be applied carefully, as there is no physical meaning until a ...
- 27.5k
0
votes
Accepted
Inductor of twisted pair cable and of a wire
Twisted pair is not meant to transport a current and the return current to convey information - the information travels as the energy between the two conductors, and always in one direction.
So, the ...
- 90.8k
1
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What is optical wireless communication?
There's no reason why optical communication needs to be fibre optic.
Sending Morse code using an Aldis lamp is a form of wireless optical communication. For computers, IrDA was an early protocol, ...
- 19k
7
votes
Accepted
Does "heat" affect signal integrity?
The temperature of the PCB material (If it's below the glass transition temperature of the material, typically above 160 C, and below the maximum ambient operating temperature of the chips involved, ...
- 128k
2
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STM32 - HAL_UART_Receive first byte is always zero
As brhans mentioned, the problem was that after reset, an empty 0x00 byte came into the buffer and caused every next frame to be shifted by 1 byte - the first byte was the last byte from the previous ...
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Understanding RS422 and choosing drivers
You want to do this:
Output connects to input, easy peasy.
But you want to use RS-422 for "isolation". It's not clear if you mean supply isolation (common grounds, a level shifter would do)...
- 27.5k
0
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Understanding RS422 and choosing drivers
In response to the comments:
But that is 485 and not 422
I would not, but what is the difference betweent 485 and 422? Can I use the same device?
The Analog Devices Guide to Selecting and Using RS-...
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Understanding RS422 and choosing drivers
Such devices exist, and are usually described as something like "full-duplex, isolated RS-485 & RS-422 transceiver".
- 18.8k
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