The tag has no wiki summary.

learn more… | top users | synonyms

-2
votes
1answer
60 views

I have a set of USB-classed barcode scanner and microcontroller board, how do I process the data?

Questions: Is the signal already readable for the microcontroller if I have both the scanner and the board match headed with USB? I know that the scanner was programmed to output whatever the bar ...
0
votes
1answer
57 views

BlueSmirf and Adruino - TX seems not to be working

I'm testing transmission of data via bluetooth. The data are recognized by my Arduino module. But I don't get any signal come out from my bluetooth module. I have no idea how to test that. (The TX and ...
0
votes
0answers
38 views

Recommended setup for recording and processing 3 or more audio signals

I don't want to ask for specific products but the terminology in general: for a future experimental project I want to record multiple audio signals and I don't know yet which frequencies I'm ...
1
vote
1answer
104 views

Barker code autocorrelation

How do you auto correlate the following Barker code? I tried to use the formula on Wikipedia's page but it did not make sense to me. +1, +1, -1, +1
-1
votes
1answer
119 views

How to find Amplitude of a Signal in Simulink

I have a com port object sampling at 0.01 seconds a stream of data. The 'data' is a signal from an accelerometer with a sinusoidal shape. I need to do math operations on the amplitude of this signal. ...
0
votes
1answer
193 views

Importing libraries in Processing IDE [closed]

I am sorry guys if I didnt make myself clear. So here is an another attempt. I am trying to view the output of MPU6050 (gyrometer + acclerometer) in Processing IDE. I added the FreeIMU library in ...
1
vote
1answer
73 views

What to look for in a processor for a DSP project

I am working on a Digital Signal Processing application and I am a little lost in all the information included with giant processors that are labeled as Digital Signal Processors. I started ...
3
votes
1answer
407 views

Best way to map ints to float in Arduino?

In Arduino how do I map an Integer value Float value or vice versa? For example this simple script doesn't print out 1600 but still returns a float value of 0.00? ...
-6
votes
2answers
181 views

Video processing using FPGA and GPU [closed]

So, I have this really abstract idea, any tips or ideas will be much appreciate. I have an input video stream, I want to process it and throw it out as fast as possible, I don't believe a regular PC ...
4
votes
2answers
203 views

How do proceed with larger electronic projects?

Recently I have read two books about programming in general: First one being Code Complete and the other being The Pragmatic Programmer that describe how one should think when dealing with large ...
2
votes
0answers
110 views

Precision Tracking filter required

I don't mind if it's a band-pass or low pass filter (although I think low-pass will give a better result). Input operating frequency range is 100Hz to 1kHz. Input amplitude will be about 1Vp-p and ...
2
votes
1answer
195 views

How exactly do all FPGAs work together on this board to carry out high speed calculations

The board I am referring to is called "Merrick 3" from "Enterpoint (ltd)". The web page can be found here: http://enterpoint.co.uk/products/asic-development-high-performance-computing/merrick-3/ I ...
8
votes
1answer
546 views

Arduino serial communication protocol design

I make a drum sequencer interface for electronic music. It uses an arduino mega as it's microprocessor, and currently it interfaces to a Processing program that I wrote for serial communication. ...
-2
votes
2answers
526 views

What amplifier circuit to use for a wheatstone bridge force transducer [closed]

I would like to amplify the signal from a force transducer which can measure load from 0-1500g. The object i am using is less than 1 gram. I would need an operational amplifier. I would like to know ...
5
votes
2answers
1k views

Why not SRAM for FPGA in image processing?

I'm beginning with VHDL coding and I've done some basic image processing on my development board. I've noticed that most FPGA development boards often use DRAM (SDRAM, DDRAM) as RAM. For example, I'm ...
9
votes
4answers
363 views

Are processors designed using different technologies?

Can/Are processors be designed using different technologies ? What I mean here is: in, for example, Intel's 28nm processors, are all the gates in that processor built in 28nm technology or are only ...
-1
votes
1answer
125 views

Determing the Phase Angle of the following code: [closed]

I'm trying to determine the phase of xx after the code is run. You shouldn't need to actually run it to determine it however, as it is unclear on the graph. The two phases present appear to be (-3*j) ...
3
votes
1answer
169 views

Why does increasing sampling density in the frequency domain separate overlapping artifacts in the spatial domain?

I have employed the fourier(projection) slice theorem in matlab. I have a 3D image, P(x,y,z) defines their pixel intensities at a given location int he image volume, it is discrete and uniform. I take ...
11
votes
4answers
977 views

Signal Processing with Op Amps

I'm tasked to reproduce the following signal using only Op Amps (and resistors). I'm pretty sure I must add two signals, the square and triangular waveforms, it is just pretty hard to figure out ...
2
votes
1answer
2k views

Is there a more robust Serial communication library for Arduino and the desktop?

Was wondering if there exists anywhere a serial communications library that can handle the following: simple compression/uncompression of the sent data to allow for higher amounts of data throughput ...
1
vote
1answer
400 views

Processing RXTX issue [closed]

I am new to Processing and attempting to write code to communicate with my Arduino - on a linux platform. When I run the following code: println(Serial.list()); ...
-1
votes
1answer
424 views

phidgets bridge with processing

thanks for your response. here are some clarifications :) : The product you've attached is the exact same one I'm using. To this can be connected 1- 4 load cells, as can be seen here: ...
4
votes
2answers
287 views

How are high-speed serial signals processed?

High-speed serial links such as Gb ethernet, PCIe, Firewire, etc support bit rates that suggest signalling frequencies far in excess of typical clocking speed of typical chips. I am wondering how ...
-3
votes
1answer
112 views

What is the most monetarily cost effective way to buy computing power? [closed]

Assuming unlimited space and power what is the cheapest way to buy off the shelf processing power (GPUs, microprocessors, etc.)? I am looking into doing a fluid dynamics simulation, with an ...
3
votes
2answers
909 views

how to solve the solder joints not shiny?

I have met a problem, need your help. I had used Sn62Pb32Ag2 (liquid temperature is 179℃)solder paste to solder components for many years,solder joints always are shiny. but recently,when I used it to ...
2
votes
1answer
3k views

How can I send multiple values from Processing to Arduino via Serial library?

I've done a basic test sending a single int value to Arduino from Processing via the Processing Serial library and all's fine. I would like to send multiple int ...
-1
votes
1answer
181 views

Understanding MIPS

I have a class where I'm learning MIPS and I have the following MIPS code: ...
1
vote
1answer
2k views

Arduino Serial communication troubles

I'm having problems getting my communication code to work. I enter the data 1, 0, 255, 50 and then it errors (shouldn't it wait until 8 bits have been sent?) it exits with my debug message of ...
3
votes
3answers
760 views

Understanding CMOS performance and complexity for ASIC : 350nm to 45nm process

I am trying to build an ASIC chip with the help of the MOSIS project. (They make it cheaper by combining multiple small project into a single fab). I have a choice between 350nm to 45nm, and ...
0
votes
1answer
355 views

Using Arduino/Processing to print text on screen when an LED light up

I have a question regarding the programming of printing text on the screen after an LED lights up on a breadboard. Should we plug in the LED into the Arduino board or a regular breadboard? How do I ...
1
vote
3answers
2k views

How to import a library into a Arduino program?

I have a Arduino program wich make use of the processing library. The program code starts with import processing.serial.*; When I try to compile it with the ...
1
vote
1answer
389 views

RFID Reader coding

I Have got my ID-12 module active and putting out the RFID tags' details to Serial as String valu = port.readStringUntil('\n'); ... then I print that to serial. ...
2
votes
3answers
168 views

Streaming a section of video to an external display

I want to be able to connect an external display to my Windows PC (in addition to the existing one), and stream a selected portion of the screen to this display. For example, if I have a small ...
4
votes
1answer
203 views

Pros/Cons of different backplane architectures?

Are there some general resources (other than spec sheets of boards) to compare the differences between computing formats like VPX, VME, IBM bladecenter-h, etc? I am tasked with doing some legwork ...
2
votes
2answers
301 views

Serial nested if statements (Not working)

I have been trying to get this to work for a few days. What i have at the moment is TouchOSC installed on my Iphone sending commands to a processing program, which in turn simplify's them and sends ...
5
votes
3answers
313 views

Problems installing 'Processing'

I am new to the whole Arduino thing and am having problems loading 'Processing'. When I attempt to run the Processing program it says 'This Program requires Java Development Kit 1.5.0'. When I go ...