Stack Overflow
Stack Overflow

Questions tagged [digital]

Digital usually refers to something using digits, particularly binary digits.

1. (of signals or data) Digital describes electronic technology that generates, stores, and processes data in terms of two states: positive and non-positive. Positive is expressed or represented by the number 1 and non-positive by the number 0. Thus, data transmitted or stored with digital technology is expressed as a string of 0's and 1's. Each of these state digits is referred to as a bit (and a string of bits that a computer can address individually as a group is a byte).

2. (of a clock or watch) A digital clock is a type of clock that displays the time digitally (i.e. in numerals or other symbols)

3. (of design or style) Digital Design or styles containing a set of graphically related glyphs, characters, or symbols. They are associated to everything from websites and computer-game graphics to special effects for movies.

4. (of media) Digital media are any media that are encoded in machine-readable formats. Digital media can be created, viewed, distributed, modified and preserved on digital electronics devices. Examples of digital media include software, digital images, digital video, video game, web pages and websites, including social media, data and databases, digital audio, such as MP3 and electronic books.

322 questions
1
vote
1 answer

How make digital sign in a pdf with Python

I want to sign a PDF with a p12 certificate in Python, but I don't know how to start, what libraries to use, or how to do it. I have a good understanding of how digital signatures work, but I'd like to do it in Python. I would be grateful for any…
eleded
  • 11
  • 2
1
vote
1 answer

I'm trying to use the Arduino serial monitor to receive input, and do something if it is a certain integer

I'm trying to make a simple program to turn a laser on and off. It was working fine until I tried to be able to make it blink by inputting a 2 to the serial monitor. It blinks, but only once. What I'm trying to make it do is blink forever, while…
floppa fan
  • 11
  • 1
  • 5
1
vote
1 answer

Serial Port Communication Protocol

In serial communication with devices such as a digital Multimeter (ex. BK Precision 2831E), why do I need to send a query command once but read the output twice? For instance, I sent a query command for the voltage measured, and received an echo…
helsinki
  • 13
  • 3
1
vote
1 answer

Unexpected output in verilog code for encoder

I have been trying to code encoder in Verilog. The code is compiling without error but the output are unexpected. The output is not changing with input. I am attaching the code and the pic of the output. I have initialized out with value 0 in each…
Chinmay Bohra
  • 13
  • 2
1
vote
1 answer

Analog vs digital version of Butterworth filter in SciPy

I have a question about the analog and digital versions of the Butterworth filter in SciPy. I tried two things to get a digital Butterworth filter: Getting an analog filter by scipy.signal.butter with analog=True, and then using…
hit
  • 31
  • 3
1
vote
3 answers

Java — How to find all valid combinations for a digital clock with hours, minutes and seconds?

I need to fill a String array in Java with all possible combinations for a digital clock (but only as HHMMSS instead of HH:MM:SS) like these: 000000 000001 010000 235903 Invalid ones would be: 240000 000160 006000 and so on. Is there an easier…
georgmierau
  • 157
  • 2
  • 9
1
vote
1 answer

How to use digital signature in jsrsasign.js with Chinese Character?

I need to interface with third-party organizations. They need to add a digital signature to the data and put it in the request header. I found that jsrsasign.js could be helpful so I am using that to do the digital signature, but always with the…
尼玛阿
  • 11
  • 1
1
vote
1 answer

Verilog basic gate data flow not working for NAND & NOR, but works for XNOR & XOR

I have some basic code using data flow statements, but nor and nand functions are not working with this. module basic_gates_bitwise_df( input A, input B, output andd,orr,nota,nandd,norr,xorr,xnorr ); assign andd=A&B; assign orr=A|B; assign…
vishnu lal
  • 23
  • 4
1
vote
1 answer

24 Hour Clock code, getting fan out error

module top_module( input clk, input reset, input ena, output pm, output reg [7:0] hh, output reg [7:0] mm, output reg [7:0] ss); wire [4:0] enable; assign enable[0] = ss[3:0] == 4'd9; assign enable[1] =…
PauLWaFFleZ
  • 11
  • 2
1
vote
2 answers

do we use blocking or non-blocking statement while we make latch in verilog?

what is right way to make latch in verilog? When i try synthesizing both ways on vivado i get latch generated in both the cases.i am trying to understand do we use blocking statement or non-blocking statement? i) always @(enable,input) begin q <=…
PARUL
  • 95
  • 7
1
vote
0 answers

Digital Signage Websocket Control

I am trying to figure out a way of having a customer walk up to a screen scan a QR code and then have control of the content on the screen via their web browser. I know bright sign can do this but unfortunately i need it within our SCALA…
buckrogers999
  • 11
  • 1
1
vote
1 answer

16 to 1 mux using 2 to 1 mux in vhdl

I'm trying to write a code in vhdl to create a 16 to 1 mux using 2 to 1 mux. I actually thought that to do this we may need 15 two to one multiplexers and by wiring them together and using structural model I wrote the code below. First I wrote a 2…
maryam gh
  • 163
  • 1
  • 5
  • 11
1
vote
1 answer

How to add persona react-native sdk in android

I'm trying to implement digital verification in my app. I have done the iOS implementation now working on android In persona they have no documentation on the react-native page for android. What I should do to move to native implementation or search…
Kashif Ahmed
  • 803
  • 9
  • 20
1
vote
1 answer

Adding signingCertificateV2 attribute to SignedCms

ContentInfo content = new ContentInfo(new Oid("1.2.840.113549.1.7.5"), Encoding.UTF8.GetBytes(str.ToString())); SignedCms signedCms = new SignedCms(content, true); CmsSigner cmsSigner = new CmsSigner(cert); …
Ashraf wadea
  • 11
  • 1
1
vote
1 answer

Java itext4.x digital signature

I am using itext4 and I know this method of implementation has been removed in new versions but I am able to generate pdf but its damaged. Appearance method setcrypto is used to sign. I added sign field while creating document. Later open same pdf…
bigler
  • 9
  • 3
1 2 3
…
21 22