Questions tagged [board]

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17 views

Avionics or bench test schools in Oklahoma [closed]

Would anyone know where there are avionics or circuit board repair schools in Oklahoma? I know of Metro in OKC and Spartan in Tulsa, but was curious if there were other electronics technology or ...
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1answer
61 views

Altium not showing PCB's body in 3D view

I am trying to copy the Arduino schematic, but when laying out my PCB in Altium I have issues with the 3D view. As you can see from the picture below, the PCB appears without problems in the board ...
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40 views

Programming Custom STM32F446RE Board With STM32F446ZE Board

Hi I made a custom board by following the NUCLEO F446RE schematic from ST microelectronics website. Here's a picture of the board: As you can see on the bottom left of the picture SWD connections are ...
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28 views

I have a Board and need help using it. Wlan module. model K30356

Can anyone help me with this board? I pulled it from a cannon computer and correct me if I'm wrong from the very little time I have spent on this but I believe it's a wifi module and I'm wanting to ...
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1answer
33 views

Can someone tell me how i make the MACH3 software to communicate with this board?

I have a project to do in which I will need to use this board to move one of the axis of a machine. But I can't find the datasheet for that board. It serial number appears to be HW-3561224. Besides, ...
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1answer
50 views

How come the microcontroller of this board is being powered in this configuration?

I have this development board with the following pinout: And I am using the following FTDI to USB interface to communicate with a PC: Here is a photo of the board and the FTDI wired to the board ...
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2answers
51 views

Trying to find and bridge USART pins from the manual of an STM32 board

I am trying to solve an issue regarding a firmware with this 64-bit Nucleo Board. I have the hex file and can see the ready source code but when I upload the firmware I am not able to communicate ...
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1answer
95 views

What type of rectangular chip is this? And how does one even know how to identify chips on boards?

I have a two Playstation 5 boards which are identical, but one of these chips are labeled differently (C1 and A6). What are they and what do the labels indicate and how do I source this type of chip? ...
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1answer
47 views

Need help explaining and more details and answering the feedback for PCB board [closed]

i need help with my doc. I do have to inspection and assembly PCB board I this is my steps are 1-First, I will make sure the PCB board does not have any damage by visual inspection PCB and see if ...
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1answer
63 views

Thermador oven circuit board troubleshooting - where to go from here?

I have a Thermador double oven unit that is not working correctly in one of its cooking modes. I have done some troubleshooting, but haven’t located the problem to my satisfaction. I wanted to see if ...
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0answers
29 views

Cold Reset STC125A60S2 PLC Board

I am working on these PLC Board: http://more-suns.com/product/html/?321.html but I cannot contact manufacturer. The fact is to have it programmed I have realized that I can only do it after a cold ...
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1answer
43 views

Which components should be checked on a faulty tv power supply? [closed]

So, I'm new to working with electronics and I didn't study electrical engineering or anything related. I've collected some dead tvs and monitors over time hoping that I'm gonna fix them. I managed to ...
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1answer
132 views

KiCAD - Design rules for fabrication boardhouse [closed]

This is my first time designing a PCB with KiCAD. I plan to send them to JLCPCB for assembly. There are a ton of parameters to be set like track width, via width etc. If these are set wrong, then the ...
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1answer
44 views

Ebike 24v relay board - switch?

Hi I’m building an Ebike and using a reclaimed relay board from an old electric moped. My question is the relay board has 3 small wires presumably for the switch, but this confuses me as I only need 2 ...
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0answers
47 views

What programmable board should I use for my project? [closed]

I have a small project going on, you can call this a research project that I needed to pass a certain class。 But the thing is, I don't know what I should use Arduino? Raspberry Pi? Im a complete ...
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1answer
85 views

Problem with making an Arduino-like board

I'm making my own Arduino-like board with an ATmega328p and an FT232RL. After realizing the circuit (making sure everything was correct) I had some prototypes made by JLCPCB. Later I bought the ...
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1answer
126 views

How to create a break away to cut the board

I am not a expert with Eagle 9.6 but I created a nice PCB. A friend of my is going to assembly the part with a pick and place machine. He asked me to enlarge my PCB to be able to fix the board and ...
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4answers
166 views

Fine wire for breakout board soldering that won't break

I've been using silicone sheathed stainless steel wire (30 awg) with a 1.27mm breakout board. The wires cannot be secured (it's tight in the thing I'm building), and they easily break off at the point ...
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8answers
3k views

LEDs on boards - pros and cons?

OK - I tend to design high value low volume boards so my view of this is biased. I like to sprinkle a lot of LEDs around my boards. One (red) LED for every power voltage on the board. Multiple s/w ...
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1answer
46 views

Using a Renesas evaluation board as a Programmer

I am new to using renesas microcontrollers, and could use some advice from someone with experience using them. I found this rl78 evaluation board and a quick reading of the product description on the ...
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2answers
82 views

Development Board

i gained some experience with ARM and especially with STM32 MCU models.Now i wanted to start learning x86_64 architecture and my initial goal was going towards it. Is there any good development boards ...
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0answers
29 views

Bluetooth Receiver Board - Noise Problem

I recently bought a bluetooth receiver board in order to add bluetooth to my car, this however is not as easy as I thought. I am not very skilled with electronics. I have an aux audio input in my car ...
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2answers
77 views

Do electronics companies publish the diagram of their electric boards

I'm new to the electronics world, and I came to know that electronics companies (As Fairchild) provide datasheet for the components they produce (As IGBT, Triac, etc.). Do electronics companies (As ...
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3answers
75 views

Can I build a 4A circuit on cardboard?

I'm planning to build a 12V 4A circuit, and I was originally going to put it on a strip board. However, the board I ordered came broken (and each piece would be a bit small for building a circuit), ...
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1answer
57 views

Can you help me identify this board?

I have found this board installed and I am unsure what it is or what its function is. I have googled it to no avail.
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0answers
28 views

Position of global fiducials

I have two question for placement of global fiducials on my board: In the board below you see two fiducials and a component (SMD connector). I would like to place the connector on the very edge of ...
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0answers
172 views

How to refresh many capacitors quickly

I'm working in an embedded space, where I need to keep voltages on a bunch of capacitors (RC circuits). Currently, I have an EEPROM with some data value for each capacitor. There is 1 DAC that feeds a ...
2
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1answer
87 views

What is the role of the four-pin header on this USB relay board?

This is a commonly available relay board with a USB HID-like interface. I haven't been able to find a datasheet for it on the sites that sell it. On its right side there's a four pin header. I'm ...
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4answers
85 views

How can I calculate the minimum switch time between main battery and back-up battery for my board?

I have UpSquared board for an embedded system. I have a main power supply(battery) to feed it and I also have a back-up battery for some situations. For example, something happened and main battery ...
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1answer
54 views

In sale or custom made?

RJ45 to 8 pos board connector. Board connector width: 12,4 mm Pin pitch: 2 mm Found inside a plastic card printer. Somewhere to purchase cable? Identification of the board connector?
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3answers
57 views

What is the typical delay relative to to the maximum delay?

I have a board with a number of ICs, an FPGA, and some flash and RAM devices. The board is designed based on worst case conditions, as it should be. The critical combinatoric path has a maximum ...
2
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1answer
355 views

Low cost connector for two stacked PCBs

I know we should not ask for product advice here, but I searched a lot for a specific board connection solution lately and it almost drives me crazy that I have only found so little options. I need ...
4
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1answer
263 views

Dave Jones' uCurrent Gold - trace to shunt resistors has no soldermask

I was going through the uCurrent project and noticed something that seemed unusual to me. In the image, the trace connecting R1 to the input jack is (a) of differing trace widths, and (b) has no ...
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3answers
721 views

How does a board file (brd) differ from a Gerber file? Why use one over the other?

There are several graphical PCB viewers available and they read what appears to be a standard board file (.BRD) format. Eagle and other PCB designing applications generate board files, but also ...
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0answers
43 views

Raspberry pi not getting any data from hx711

I'm trying to combine two boards into one: SparkFun Load Sensor Combinator(basically just a wheatstone bridge) and SparkFun Load Cell Amplifier. The data will be transmitted to a Raspberry Pi 3 so ...
4
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1answer
3k views

What item could this PCB board be from? (NOT serious, misc. question) [closed]

This is a fun, light-hearted question and not meant to be taken too seriously. As a little fun thing between a group of friends, we found this question on a desk at work sometime ago about a PCB that ...
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2answers
88 views

Board to board connectivity [closed]

Need to connect two boards together. Initially I thought about using a ribbon cable like this one, but everything I found was significantly longer than what I needed (~30mm max). Are there any other ...
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2answers
392 views

Is there software for converting a picture of a board into an schematic?

I need to reverse-engineer several simple single-sided boards. I have very good quality pictures of them so I was thinking that maybe there is software capable of getting the schematic from the ...
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1answer
121 views

What is the proper term for a board that replaces a chip?

I've been working on some vintage electronics lately. In the course of this work, I've found that in some cases it is much easier to design a circuit to replace an old DIP chip that has failed than ...
2
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2answers
141 views

Copper layer delaminates on Printed Circuit Board

I have been making the PCB boards by the conventional process since last few years (pressing, etching, drilling, soldering). I usually iron the photo paper to the PCB board for around 15-20 minutes ...
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2answers
123 views

Reading current memory image from a micro controller

I have the MPLAB XPress Evaluation Board, which has the PIC16F18855 microcontroller on it. The way to program it is just to copy a ...
0
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1answer
88 views

What is Mikrobus purpose?

I'm new to embedded systems. I have MPLAB Xpress Evaluation Board. I see that the board has MikroBUS connectors. Going through the internet, I couldn't understand what is the purpose of the MikroBUS? ...
0
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1answer
299 views

What QSPI chip is on ItsyBitsy M4 Express?

I'm trying to find out the name of the QSPI chip that is used on ItsyBitsy M4 Express boards. On the image below is very faded:
2
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1answer
3k views

Can I use a 22 microfarad capacitor in place of a 10 microfarad capacitor?

I have a bad 10 microfarad capacitor 400V but can not get a replacement. Can I use 22 microfarads 400V instead?
5
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1answer
192 views

Named nets not connected in Eagle board design

I set up my schematic in Eagle and used named nets to make all of the connections. If I highlight any of the connections in the schematic everything lights up properly. When I switch to board design ...
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2answers
186 views

I2C Put One Termination Res at the End or on Each Slave Board

I Have a system with I2C bus wired just like this: My questions is which one is better: put the termination pull up res at the end of connection (on the last board), or put pull up res on each slave ...
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1answer
86 views

What makes a microcontroller development board powerful?

I'm seeing an awful lot of dev boards on the internet that arent Raspberry Pis or Arduinos and I'd like to know what makes a board powerful? Whats the difference between a board that may be used in a ...
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2answers
322 views

What bluetooth chip should be purchased to solder onto the Nook motherboard? [closed]

From what I researched the e-reader's motherboard contains three unused serial ports that can be connected from gps modules to bluetooth chips. U2713 PIN OUT CLOSEUP The article that gives ...
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1answer
729 views

How to read temperature with STM32F103C8T6? [closed]

How can I read the temperature using an NTC thermistor with an STM32F103C8T6 board??
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2answers
918 views

STM32 -ADC ERROR

I have make an STM32F030F4P6 board for reading analog values. When I connect the analog pin to vcc the value is 4095, instead when I connect the analog pin to GND the value isn't 0. How can I solve ...