Questions tagged [software]

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Simulation circuit program open source

I need to perform circuit simulations and from what I have been able to see the programs that are most used for this practice are Proteus and Multisim. But such programs are not open source. I have ...
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9 views

CST -Computer Simulation Technology for Microstrip Antenna Design

I have a lot of difficulty understanding certain functions and understandings of CST, I know frequency, reflection coefficient S11 and transmission loss But the image below shows what I doubt. If ...
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1answer
99 views

Unknown schematics

I'm trying to open some circuit schematics for some equipment I have in my lab. However, they were designed some time ago (2013) by an unknown technician with an unknown program. There are two folders,...
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1answer
86 views

Best practice for handling buffers

I'm writing some evaluation code with a lot of rx/tx operations, using the same two buffers and I started to think about how this could easily go very wrong. I can argue that it is nice to clear/...
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31 views

RF Communication Simulation Software

I was wondering about free software for modelling RF communications, such as creating a transponder equipment line up, changing equipment parameters etc and modelling performances like BER, S/N, Phase ...
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2answers
97 views

Troubles connecting microcontroller STM32 NUCLEO-F401RE as a USB device to PC

This is as much a software question as it is electronics question, but here we go. I am very new to STM32 micro controllers and I've been sitting with this problem for the last 3 days of so My goal: ...
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0answers
92 views

Circuit drawing software

Does anyone recognize the software in whitch these circuits were drawn?
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249 views

Importing EasyEDA project to EAGLE

I have a problem with uploading my EasyEDA project to EAGLE. Is there a way to open project from EasyEDA in EAGLE, I'm unable to find anything about it. EasyEDA exports files in .json format.
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6answers
2k views

How do you structure large embedded projects? [closed]

Background: Junior R&D electronics engineer (the only EE in the company) - the hardware and the coding is not the problem. My biggest issue is getting a proper overview of the project, and where ...
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55 views

Chua's circuit's pattern not fully shown

I have made a Chua's circuit, and hooked a soundcard oscilloscope to it, to measure the voltage across C1 and C2. Circuit diagram: Source:Kennedy 92(pdf). Software used: soundcard scope. The ...
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19 views

Same software on single ESP-12f slower than on NodeMCU

I have programmed a small software to control an LED strip using an esp. I've written a web app which sends a request to the esp which then applies the color. So far everything works, but I've got a ...
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1answer
112 views

What is single and multi connection mode( AT+CIPMUX=0 or 1) in esp8266 AT commands

I was studying the AT commands to program atmega328p for the communication with esp8266. Now I am confused with the command AT+CIPMUX=0 or 1 , it explains that 1 for multiple connection, 0 for single ...
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2answers
71 views

Scanning simultaneously across 2-dimensions electronically (like a “3D oscilloscope”)

I have a laser that has sensitivity to two electrical inputs (that can be input simultaneously). Of course, I can easily add an electrical signal with an input of a "linear sweep", and observe the ...
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2answers
74 views

Software vs hardware-defined GNSS receivers

I am conducting research into the accuracy of smartphone positional fixing accuracy. I have come to understand that smartphones use software-defined receivers rather than hardware-defined receivers. ...
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1answer
136 views

Range for raw analog import in PulseView (SigRok)?

Apologies in advance if I chose the wrong forum - this is mostly a software question; however, I thought it would be irrelevant to most on StackOverflow that don't do electrical engineering, so I ...
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2answers
578 views

Drawing circuits with IC pinout diagrams [closed]

I am not sure whether this community or the tex.sx is the most appropriate for my question. I have an assignement where I am given a boolean expression and I have to implement these expressions using ...
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27 views

How to suppress Models not found warning dialog When I open pcbdoc in Altium Designer?

When I open pcbdoc file in Altium Designer, I am facing following warning dialog box. When i press "Ok" in this dialog, pcbdoc file is open in edited mode. So i have to save or discard changes when ...
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2answers
126 views

Resistor calculator to get close to a final value?

If I search on internet I see thousands of serial or parallel resistor calculators, where you can fill in the 'input' resistors, and the output resistance is given. However, I wonder if there is a ...
7
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1answer
3k views

What breadboard simulation software is this?

I'm not familiar with what software is available and cannot recognize the origin of this diagram. Does anyone know what software this is? I'm only guessing that it can perform simulation; it may just ...
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2answers
152 views

What software use to hack wireless protocol ( logic analyze ) USBee

Q: What software do you use for logic analyze? Why: I try to hack(reverse engineering) my home wireless heating system control to make my own central control unit. Wireless: My heating system uses ...
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1answer
168 views

How is this program called? [closed]

I found this image somewhere on the internet and I am wondering what program is it.
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1answer
92 views

Why does autorouter revert to 98% after reaching 100%?

I managed to route an entire complex board with eagle, or so I thought. At first it worked. Then I began adding large fills (ground planes and VCC planes) in order to minimize impedance. I now added ...
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0answers
149 views

Visual circuit simulation on a Mac

I am currently trying to design a circuit on a Mac (some might say therein lies my problem). My goal is simply to design a rudimentary implementation of the circuit which I can visualise working I ...
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2answers
560 views

How to make a circuit diagram for a PDF document? [closed]

SmartDraw seems nice but is not free. Circuit Lab was way easier to use, but I could not even rotate the "current source" arrow to point in the upward direction Circuitikz involves typing in ...
2
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2answers
352 views

8051 baud rate calculator using 16-bit timer for software UART timing

I'm making a project in which pulsed laser beam data is sensed through many optical sensors (one sensor per port pin), so essentially, I'm going to be making 4 UARTs to sense this. Currently I am ...
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59 views

Why not detecting zero crossing of the back EMFs in BLDC by software?

I am reading about the state-of-the-art approaches to detect the zero crossing of the back (trapezoidal) EMFs on a 3-phase BLDC for sensorless control. Even digitally implemented, they use various ...
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5answers
187 views

Will the High-Level Synthesis (HLS) design approach for FPGAs reduce the demand for RTL designers? [closed]

I'm a senior electrical engineering student who's very interested in FPGAs and RTL design. But recently after learning what HLS compilers are capable of I had to consider the possibility that ...
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3answers
357 views

Altium 18 - “Override library primitive” option missing?

I'm busy setting up my new install of Altium 18 to match my preferred settings, namely making the default schematic font Consolas (for the purposes of mono spacing and slashed zeroes). Normally this ...
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3answers
144 views

Indicate Heating, Burning and so on in Circuit Simulation Software

Is there have any simulation software which is indicating other than current signals like heating, burning and so on with time by Power. Circuit simulating like real world behaviors of circuit. ...
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2answers
462 views

software pwm with pic16F628A and XC8

My current knowledge of PICs is currently limited to simple LED blinking with and without the use of interrupts and timers in C code with XC8, MPLAB IDE, and Pickit 3. I have trouble implementing this ...
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1answer
935 views

Quadrature encoder - Most efficient software implementation

Simply put, I'm controlling a DC-motor with a dual-channel encoder with a microcontroller for a personal project, and I'm trying to find the "best" software-based implementation of the following state-...
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3answers
343 views

How to compare footprints of SMD? [closed]

How easy compare dimensions and footprints for different size SMT components. I mean how compare footprints of 0603 with 0402 size components. For example. I want to know is there possible to use ...
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2answers
274 views

CMSIS - Peripheral Definitions - Structs With Unions Syntax? [closed]

I've moving over from 8 bit bare-metal registers, and having to learn some new C Kungfu to wrap my head around the CMSIS Core approach. I have a snippet of code here from a Peripheral Access Layer ...
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0answers
386 views

How to develop for the NRF24LE1? [closed]

I found about the nRF24LE1 chips a while ago and they seem perfect for really small applications that require RF since they are the same as the well-known nRF 24L01 but include an 8051 MCU and memory. ...
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1answer
65 views

Project Collaboration Tools [closed]

I formed a startup business six months ago. The first product has been designed consisting of a PCB, some firmware, verification tests, and some supporting PC-based application software. The first ...
27
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4answers
9k views

What software was used for drawing this schematic?

I was reading a book on digital electronics and the gates with more than two input are drawn differently. I have seen many books that draw schematic in this style. I was wondering what software did ...
14
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6answers
3k views

What is the software equivalent of an engineering change order?

We have a device on which we are considering doing a software update on a bare metal microcontroller. The new image would be programmed on all future products. If I was to change a component on the ...
1
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1answer
340 views

Altium PDF exporter throws all nets off-center

I have a schematic I am exporting to PDF to send. However, when I use the SmartPDF or export through an outjob Altium moves all net names, port names, and pin names to the left. Am I missing some ...
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2answers
998 views

SIM800L - No response while sending AT commands

I'm new to this arduino world. I'm trying to communicate with my arduino nano and SIM800L. I read few things in the internet and found a basic code. I tried copying it and tried to work it out, but I'...
2
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1answer
8k views

SIM800L not responding to AT commands

I am on a very exciting project, by the SIM800L module is resisting hard ! The hardware : clone arduino nano (dx.com) SIM800L module + antenna (dx.com) Lipo battery 3.7V 150mAh (letmeknow.com) The ...
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1answer
767 views

Accelerometer SA0 & SA1 Pin hanging

I'm trying to TWI communication between accelerometer FXOS8700 & micro-controller (nrf51) but I forgot to connect SA0 & SA1 line to micro-controller pin (or connection to GND) & all PCB ...
5
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1answer
19k views

How to find a specific component in Altium PCB

When viewing a PCB (.pcbdoc) layout in Altium, is there a way to search for a specific component by name? Like "highlight C35 and show it on the screen"?
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1answer
44 views

Free simple application for making a prototype shield [closed]

Is there a simple and free application for 'designing' a prototype shield (like this?) Currently I use Excel and a 'Above' and 'Below' side next to each other but it gets messy already with such a ...
0
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1answer
51 views

measure the voltage of electronics component connected on breadboard using own software

I wanted to ask something related to breadboard designing. Is this possible that we can design own breadboard such that when it interact with software, then if you put the leads between the nodes of ...
1
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1answer
238 views

What software was used for these schematic diagrams?

I have several diagrams that I attached to this post. Does anyone know what software was used to make them? I attached the diagrams as PNG files but in PDF files that I have, they are in vector ...
1
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1answer
425 views

Software to make a simple Pinout Diagram [closed]

I would like to make a simple diagram showing the pin outs of all of the pins on a board that I have. I would like to do something like the image in this post. All of the answers to this question ...
2
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1answer
5k views

How to burn hex code program file into AT89S52?

I am a beginner in Embedded. I have 8051 microcontroller development board with AT89S52 microcontroller. The board has max232 for serial communication. I have connected this development board with my ...
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2answers
77 views

Is there software for automating logic design?

As in, you choose what you want the nodes to function as then the software fills in an optimized logic design for you? seems like it would be simple enough. perhaps only fill in 70% or so and you do ...
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1answer
228 views

Software for drawing circuit schematics and SPICE simulations on Mac? [closed]

Problem: I'm trying to find a robust, user friendly, schematic design and SPICE simulation software that will run on a Mac. I have used Multisim for design and simulation in the past. I'm ...
2
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0answers
6k views

Phasors Diagram Software [closed]

I've searched the Net to find a decent software that would give me phasors plots with stacked phasors (for adding , subtracting phasors etc), such as the image below, but I couldn't find it. I tried ...

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