All Questions
24 questions
1
vote
1
answer
49
views
Cable type selection for 128 channel signal transfer [closed]
I want to use a cable to be connected (soldered) to my PCB, my PCB has 128 pads on it as follows:
The signal that will be transfer to cable is @3 MHz to 6 MHZ, in range of 150 uA.
The width of the ...
- 1,144
0
votes
2
answers
47
views
New to PCB design: Does routing a wire on a 2nd layer underneath a pad connection effect cause a connection issue?
I am designing a pcb with minimal room approximately 5.5mm wide, the power supply comes from one end of the board. The top layer has pad connections that take up most of the width of the board leaving ...
0
votes
3
answers
270
views
Tips for soldering some wires into a PCB
I need to solder some wires into a PCB, im dont really master soldering small pads or pins, so i need some help.
I have a question too, those pads are already tinned, soldered, so can i apply some ...
- 9
1
vote
1
answer
106
views
How to make sketch-like wiring diagram
I am wondering how to draw such connection diagram in sketch-like style as on belowe picture? I have designed some boards in KiCad and I would like to make wiring around my PCBs in style similar to ...
- 136
0
votes
1
answer
123
views
Jumping SMD buttons from one PCB to another
I have two PCBs: one is from a Lutron Pico, while another is from a a generic 2.4GHz wireless controller for some LED lights. I'd like to use the form factor of the Lutron Pico, but keep the ...
- 133
0
votes
0
answers
152
views
Electrical connection between RP2040 and ESP-12F
I'm projecting a PCB board with a Raspberry RP2040 and the WiFi module Ai-Thinker ESP-12F (it is the only available from my PCB provider) following the official documentation, but I have some doubts ...
- 1
0
votes
1
answer
27
views
Load switch wiring help (UM3865-A)
I'm making my first PCB and I was wondering if the wiring to this load switch is correct. I'm unsure, since I am not using slew-rate control, if R2 and C1 are omitted should those connections be ...
- 1
0
votes
2
answers
709
views
Do I solder jumper wires on top or below my Arduino Micro without headers?
I am a beginner when it comes to Arduino and electronics and I have recently been building a calculator from a button matrix and an LCD. I have linked the Tinkercad design here:
(Source)
I am ...
- 1
2
votes
1
answer
295
views
Can I connect and feed multiple USB-C breakout boards into a single USB-C board (for transmitting data)?
A USB-C breakout board (BOB) has VBUS, GND, CC1, CC2, D+, and D- pins. Can I "join" multiple USB-C BOBs together by connecting their individual lines in parallel and feeding them into a ...
- 205
0
votes
1
answer
423
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, ...
- 395
6
votes
1
answer
4k
views
How to identify the positive and negative pins on a PCB connector
I have taken apart several of my older BNC-style home security cameras. What I'd like to do is take the infrared light board and power it up independently to be a supplement night light to the ...
1
vote
1
answer
176
views
Where are the power, ground and LED connections on this car air conditioning PCB?
I ordered a PCB for my car air conditioning, as the old one was chewed off by rat. I lost the plug and I'm totally confused which wire would fit where. Can someone please help me in locating which pin ...
- 11
1
vote
1
answer
153
views
Making connections sturdy [closed]
TL;DR:
How should I connect the LED strip 3 wire JST connectors to the breadboard so they are less likely to fall out
Found the answer I think: Terminal Blocks
How should I connect the LED strip 3 ...
- 121
1
vote
1
answer
1k
views
How do I fix these broken cables/pins?
I have this Infra-red USB receptor with 2 broken wires, marked in the picture with circles.
What type of connector/pin are these? Both connectors are similiar, except in size. Looks like they are ...
- 143
3
votes
3
answers
3k
views
Crimp directly to PCB (or holes in PCB)
I know there are certain SMD components which can receive a Dupont male connector. I know there are ways to solder male and female connectors to a board directly.
As part of a manufacturing technique,...
- 513
16
votes
3
answers
32k
views
KiCad: Some pads to solder wires on
I am working on a PCB for which I need external soldered wires. I made the whole PCB with al the traces on the front layer. Then, with 3 vias, I got to the back layer. Here I need to solder 3 wires to ...
- 163
3
votes
2
answers
6k
views
CAN bus with star configuration/long stubs
I am assisting in the development of a machine, and have been tasked with achieving high speed CAN (as close to 1 Mbit/s as possible) in a star configuration. The restrictions are: each arm is ...
- 688
0
votes
3
answers
452
views
What is a good PCB that you can fit with 8AWG wires?
Me and a couple of other students are working on a school project that is using voltage up to 100v and 40amps. So I figured the that 8AWG wires are the ones to to use for this. They are pretty thick ...
- 1
0
votes
2
answers
160
views
Implementing a mains appliance into a PCB
For a college project I am implementing heat via the use of one of those heat-pads you can get for lizards. The problem is the heater is direct to the mains.
Am I being dumb or is there a way to ...
2
votes
1
answer
1k
views
What is the least complex way to implement a DP3T ON-X-ON switch?
I have an application below that requires 2 MCUs to be on a PCB, along with a single FTDI header. Both are programmed thru their RX/TX UART pins.
In normal operation, the RX pin on MCU_1 is connected ...
- 23
2
votes
1
answer
672
views
If I have an obtuse trace, will the complementary acute angle cause issues?
I was wondering if the complement of an obtuse trace would cause issues when routing, would it be better to have a 90 degree trace or one that comes in like this?
or 90 degrees
EDIT: Added a third ...
- 31
1
vote
2
answers
4k
views
Removing wires from a circuit board socket
I'm trying my hand at repairing old joysticks. I have this Dualshock Analog Controller (SCPH-1200 M) which came with my old PSX and it didn't work properly anymore. So I've decided to open it so I ...
- 113
0
votes
2
answers
165
views
Angle of wiring
I´m relativ new to PCB designing and therefore I have two questions.
I started to design a simple 1-Layer PCB with a circular shape. In the Internet I found that a wire must not be "too long" ...
2
votes
1
answer
1k
views
software for wiring and designing electric panel [closed]
I need some help in designing an electric panel. I have designed some pcb's (Power, control, relays...) and I want to place all of them in a nice way (As shown in the pic. The pic is taken from https:/...