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2
votes
3answers
110 views

Why does Altera DE2-115 board GPIO expansion header contain 5V & 3.3V power but the IO standard has no 5V?

The altera DE2-115 board user manual section 4.8 page 47 describes the GPIO expansion header. It is clear that it has 3.3V and 5V power supply. However, it later says that "The voltage level of the I/...
1
vote
2answers
64 views

FPGA board comes with a microprocessor?

I'm looking at this development board from Altera: https://www.altera.com/support/training/university/boards.html#de1-soc It says it has an ARM processor - this has me confused; does it mean the FPGA ...
2
votes
1answer
67 views

Rotate Board and Components in Altium

Can I rotate the components and the board at once? I try hold click + Space bar but it just rotates the component only. Say I already have a 20mm x 10mm board size and I want to make it 10mm x 20mm. I ...
-3
votes
1answer
61 views

I'm looking for this FPC connector [closed]

I'm looking for this board, but I don't know the correct name: Anyone knows the name?
0
votes
1answer
64 views

how do you link components between them on a protoboard [duplicate]

I have the following protoboard (see picture below) Each hole has a distance of 0.5mm I want to link components between them. I found a few ways to do that: 1) Use tiny wires to connect the ...
0
votes
1answer
76 views

Please review my board design

This is a follow up to my question from yesterday about my schematic Please review my RGB Controller I've fixed the incorrect DC jack component that was present in my previous question, along with ...
3
votes
4answers
95 views

What is the application of the SMA connectors on the DE2 115 FPGA board

The SMA connectors are expected to be used for clock IO. However, the board already has oscillator and the PLLs can be used to generate a variety of clock frequencies. Besides, for any daughter board ...
-2
votes
1answer
73 views

Sharing a pushbutton with multiple boards

I would like to have several identical boards (arduinos) each with its own power supply, and daisy chained with some wiring, each board being able to receive a signal to an input pin when a pushbutton ...
0
votes
4answers
144 views

How much Should a Diode Read on a Multi Meter?

I'm trying to self learn all this stuff as I am a programmer not a engineer by trade So any help will be great. I have a Samsung TV Model : UA46B7000WF The Problem is that the TV blew a fuse which i ...
1
vote
1answer
36 views

Perfboad question

I am still confused about working with perf board and solder. but I want to ask, this question: When adding 2 electronic element on a perf board, in series, the start point of element 2 should be in ...
2
votes
2answers
165 views

Error sending data to LED Display board from a microcontroller

I have a LED Display which has a RS232 connector so that we can connect it to our system. Display board accept whatever data we type in hyper terminal and display it. For e.g if I type ...
0
votes
1answer
161 views

Can you help me identify the antenna? Looking to add External Antenna

I'm looking to add an external antenna and I want to find out I add the antenna using a Mini PCI U.FL to RP-SMA Antenna WiFi Cable Signal Connector Network Adapter I got off of ebay to a Trendnet ...
-1
votes
1answer
495 views

Cheapest FPGA PCIe board for Software Acceleration [closed]

This question is somewhat related to an earlier question: Cheapest FPGA's. I have been searching for a cheap FPGA board with PCI express 2.0 or 3.x support. Such boards can be plugged in one of the ...
0
votes
1answer
73 views

Using a dev board as final commercial solution

I'm working on a small embedded project which controls electrical usage of a factory/department. My solution is limited regarding the production of the solution: I may sell 50 or 100 per year. My ...
2
votes
1answer
126 views

Build PIC development board on bread board

I have PIC24FJ128GA202 IC only. Since development boards cost too much, I would like to build a development board on a bread board and try some sample programs on it. Like the image below: Is it ...
1
vote
1answer
638 views

Yellow X in Eagle

I am trying to connect two points of my board with a bottom and top route, connected with a via. Whenever I link the two routes, a yellow x appears. Placing the via on top of the connection doesn't ...
1
vote
3answers
438 views

Impedance matching routes in Eagle board

I am making my second board using Eagle CAD. I have different components with a set of different sizes. I set the minimum width for lines to be x. That way, the autorouter creates EVERY line in that ...
0
votes
1answer
58 views

Tracking a circuit path across a crack?

I am new to the world of electronic repair. I have connected several wires to this board and have been successful in getting the paths across the crack to connect. Is there an easy way to trace out ...
0
votes
3answers
205 views

electrolytic capacitor [closed]

if i changed a 63v 1000uf electrolytic capacitor for a 35v 1000uf what would happen its a main smoothing cap on a power regulator board thats running @ 67v dc 8amp and i want to reduce the voltage ...
0
votes
1answer
324 views

Arduino to read file data from SD storage board, and PC user to update same file via usb cable as needed

I have a project where in the finished product (sketch loaded to Arduino and it's running on its own), Arduino needs to regularly read data from a text file stored on a SPI Micro SD storage board (the ...
-2
votes
1answer
95 views

is this circuit board usable [closed]

I was carrying out a modification on an xbox 360 controller and there were 3 spots I needed to solder wires to. The first two went well. However, I had a problem with the third. Each spot I was ...
0
votes
3answers
317 views

Can the EasyPIC PRO™ v7 from mikroe be used with CCS compiler or MPLAB

I am not aware if any developments have taken place here. Is it possible for me to use my EasyPIC PRO™ v7 PIC development board (http://www.mikroe.com/easypic-pro/#mikroprog) with Microchip's MPLAB or ...
2
votes
1answer
186 views

Completing circuits with transistors and arduino

Hello and thanks to anyone who helps. I am trying to create a test bench for a control board we commonly work on at our business. One control board has 11 pins that a ribbon cable would be connected ...
0
votes
1answer
69 views

Custom board cutoffs pcb

I have been playing with the board shape, im planning to send this to OSH spark for manufacturing, however i have doubts about if they can do cutoffs of the boards like this or any other possible form ...
0
votes
1answer
374 views

Using Nexys 4 audio port [closed]

I have a digilent Nexys 4 board that I am using for learning Verilog. I have written a code that requires connecting an audio speaker to the board for evaluating. What is the speaker that can be used ...
0
votes
2answers
230 views

Designing a board for NXT/EV3 with MANY ports

I'd like to design a board for Lego Mindstorms NXT/EV3 that has many I/O ports. The board, like the original "smart" bricks, would have 2 kind of ports: sensor ports (two modes: analog, and I2C) ...
1
vote
1answer
206 views

Connecting FT2232H board (60 MHz via 2.54 mm header) to FPGA board

I am trying to connect FT2232H breakout board (http://www.digikey.com/catalog/en/partgroup/ft2232h-evaluation-board-ft2232h-mini-module/15377) to DE0-Nano FPGA board (http://www.altera.com/education/...
4
votes
1answer
599 views

Eagle: use device in schematic, but hide it on board

How can I hide a device on a board, but still use it in the schematic? For example, I want to have relays in my schematic which are on an other board, to make the schematic more understandable.
0
votes
2answers
175 views

What is this little board I've found in an ATX PSU?

I have dissembled and old ATX power supply, and I've found this small board between the male AC input socket and the main board. What is it?
1
vote
3answers
780 views

Ensuring that the a circuit breaker in a secondary elec. distribution board will go off before a circuit breaker in the main board

I want to create a small portable single-phase secondary electrical distribution board to safely power up some lights in my back yard. The board will be powered from a wall socket, and will contain ...
-1
votes
2answers
120 views

Designing with ARM SoCs [closed]

I want to learn how to design and develop boards for SoC systems (i.e. i.MX from Freescale). This can be real useful to me because there are countless things I could do with the possibility to design ...
7
votes
1answer
590 views

Name for this type of connector?

Can Anyone help me to identify this board to board connector? 7 springs connector on top and 8 on the bottom. answer Found a Korean company producing it. Thanks. This is the plug on the other ...
7
votes
2answers
2k views

Using copper clad for RF projects

As a novice reading "Build Your Own Transistor Radios" by Ronald Quan I was kind of mystified by the author's statement that using "vector" board would be easier than using prototype boards, but the ...
1
vote
1answer
185 views

Tool to remove traces on a stripboard? [duplicate]

I was wondering what sort of tool works best for removing traces on a stripboard like the following: Datasheet. Product page on Mouser. Image from http://commons.wikimedia.org
3
votes
8answers
13k views

How to cut the tracks of a stripboard

Since I've started electronics I'm using this kind of board for permanent projects: But sometimes it's a bit annoying, especially when I need a line going from the top to bottom of the board. I'...
11
votes
4answers
2k views

OK to connect boards perpendicularly like this?

Are there any disadvantages in using the following method to accomplish a perpendicular board-to-board connection? (i.e., any disadvantages in terms of board manufacturing capability/cost assembly ...
1
vote
1answer
548 views

Troubleshooting ready board with LM339 IC?

I thought, I will not bother any more with this project of mine, but I really run out of ideas trying to get it to work. When using breadboard, the design works as expected (did it couple of times ...
3
votes
1answer
996 views

SOT23-5 Package vs SOT23-5L…Differences?

I'm designing a board which uses an LDO that comes in the SOT23-5 package. I have these parts in my possession, and on the part label (from Digikey) it displays that it is a SOT23-5, which makes sense....
2
votes
2answers
204 views

Can motherboard heatsink screws change the inductance of nearby traces?

I have bought motherboard and heat sink. The heat sink uses metal screws and the screw heads are isolated from the board with thin mica insulators. But the screws end up being above some traces on the ...
2
votes
3answers
246 views

What do you use a board like this for?

I'll start by saying that I'm a software guy, I know literally nothing about electronics. I recently bought a raspberry pi, and while browsing at my local electronics shop, saw this board for $5. ...
2
votes
1answer
82 views

Searching for standalone unix development board to connect DC motors

I though a bit about the board and came to the conclusion that it may be more intelligent to use a stand-alone component which provides serial ports and an unix os which I then can control over the ...
-1
votes
2answers
1k views

Best development board for cmos camera project [closed]

I want to interface a high definition (best quality) cmos camera with a development board. I have use arduino, raspberry pi and pic microcontrollers for some projects in the past but i dont know a ...
0
votes
2answers
2k views

Arduino Clone is not talking to my Mac

When I plugin my Osepp Uno (off-brand of Arduino Uno), the LED flickers a bunch, then the RX and TX lights do the same. But when I ls /dev/ | grep -i usb I get ...
-2
votes
1answer
383 views

How strong are the Arduino boards relating to interference robustness?

In my previous question the problem was related to EM noises with the Arduino boards, then I asked myself: How strong are the Arduino boards relating to interference robustness? For example, if I ...
-2
votes
1answer
87 views

How to get rid of viscous drops from a circuit board [closed]

My mothers Dell Inspiron n7110 was spilt over with red wine and doesn't star anymore. Even the front LEDs don't show up in any case. I was able to dissemble it using the following guide also gives ...
0
votes
1answer
183 views

Could an aluminum housing and passive cooling interfere with SoC's functioning?

I took the board out of a broken tablet. The SoC on the board gets hot pretty quickly. I thought about fixing the board to an aluminum plate, so that it touches the SoC and disctributes its heat, and ...
6
votes
3answers
375 views

Does PCB artwork affect operation and how is the effect validated?

Sometimes PCB designers will draw some art on unused PCB areas. Like here and here. Looks great, but does this affect schema functioning? According to answers to this question an entirely isolated ...
0
votes
2answers
936 views

Development board with cellular capabilities smaller than Arduino [closed]

I would like to build my own cellphone (phone calls and texts at least). Having experience with Arduino, I found several cellular shields and libraries that could allow me to do so with Arduino. ...
2
votes
1answer
132 views

anyone knows miniature wireless system with data rate >= 2000 Hz?

I am currently using TS7250 board from "embeddedarm" for my sensor and having it set up at 30 KHz for data rate. However, the board is too big for my current application. Can anyone recommend another ...
-1
votes
1answer
58 views

Wrong voltage sent to output

Using miniLab1008, I am trying to send 10V to my D/A OUT0 but it sends only 5V and when I send 5V, I get 2.5V. I am using the universal library example VOut01.c Is this a board problem? However using ...