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0
votes
1answer
52 views

Estimating processing power required

I am currently in a computer engineering class and I have been asked to design a product that can guide blind people. In my fictitious product I am going to implement a module to detect distances (a ...
1
vote
1answer
81 views

How does a micro-controller process instruction from its code segment in the memory? [duplicate]

I have been working with an Atmega 328 PU for a while and I understand how the .hex file is transferred into the chips code segment in memory . I have looked at the architecture of the Atmega 328 and ...
-2
votes
2answers
75 views

64bit vs 32bit processor execution equivalence [closed]

I'm not sure if I am in the good site but here's my question : I was questionning myself, what would be comparable(execution speed) between a 32bit and 64bit processor. Like what would be the ...
0
votes
1answer
91 views

Writing data over Serial comm //Arduino & MPU6050 gyro+accelerometer

I'm new to serial communication and I am just scratching the surface, therefore please bare with me. What I need to accomplish is the transfer of the gyroscope data I gather on my Arduino to ...
2
votes
2answers
63 views

Processor Budgeting

How do I figure out if a microcontroller has enough processing speed to handle particularly "intensive" tasks? Specifically, I am a university student looking to design a robot that uses OpenCV and a ...
-2
votes
1answer
93 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
75 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
42 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
203 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
162 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
259 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
80 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
623 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
204 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
206 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
211 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
616 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
596 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 ...
6
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
379 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
130 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
172 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
1k 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 ...
3
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 ...
2
votes
1answer
535 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
494 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
302 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
114 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
1k 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
185 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
810 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
360 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
401 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
170 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
210 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
306 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
342 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 ...