Questions tagged [wiring]
How wires connect to terminals and to each other; coloring and organization schemes; appropriate wire selection and installation techniques
702
questions
1
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0answers
42 views
Raspberry PI Zero, pushbutton and pullup
I have a very simple schematic:
GPIO12 -> pushbutton -> R(1.5 Kohm) -> ground
The GPIO12 is set to IN mode and ...
1
vote
0answers
28 views
2S 18650 Li-ion battery pack conundrum
I recently bought a remote control toy for my son which included 2 2S battery packs, with a single SM-3P plug, and a corresponding USB charger as shown here.
Initially, the car worked fine, though ...
0
votes
1answer
20 views
Wires not Snapping to Pins on Component in Altium 19
I updated my PCB Document based on my schematics and noticed a few nets were missing between components. For example, my current limiting resistor doesn't have a visible net to my LED.
So I went back ...
0
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1answer
46 views
Am I thinking about this correctly regarding 12V, 24V and 120V LED lighting?
Most of the LED light strips I see are either 12V or 24V, which require a driver to step down the power from 120v at the wall (thus the little black transformers that come with them).
However... I ...
0
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2answers
55 views
Wiring 1 lamp and 1 fan to 2 switches instead of 1
There's this setup, where I have one lamp and one fan, both are connected to one switch.
I would like to add another switch to control them independently.
Here's a rough schematic of what I found ...
0
votes
1answer
52 views
Wire bypass/override switches in a landing gear circuit
The wiring diagram below is for the Landing gear circuit in a homebuilt airplane using Automation Direct pressure switches. These pressure switches turn the hydraulic pump off when a pre-set pressure ...
0
votes
2answers
57 views
How to wire 0.91/0.86 inch display to i2c?
I have a 0.91 inch display with a 4 pin I2C connection. I then realised that I needed to use a 0.86 inch display with the connector in the above image. I have searched on google on this but nothing ...
0
votes
1answer
72 views
Protecting a wire linked to a power supply
I have a power supply of this kind: https://www.makerlab-electronics.com/my_uploads/2017/06/36V-Switching-Power-Supply-01.jpg
and wires linked to it like on https://i.ytimg.com/vi/DrZ8oupvzSE/...
0
votes
2answers
45 views
How to connect wires between power supply and switch?
I'm trying to connect non-fused and European AC power socket/toggle switch to power supply. Probably very "newbie" question but as a starter I didn't want to try-fail with this thing for safety ...
1
vote
2answers
125 views
Why would doing the “outlet challenge” cause notable damage to outlet and wiring?
WARNING!!! WHAT "PRANKERS" IN THE VIDEO DO IS MOST LIKELY VERY DANGEROUS AND MAY CAUSE DEATH, INJURY, FIRE OR OTHER DAMAGES AND IT SHOULD NOT BE TRIED IN ANY ELECTRICAL SETUPS WHICH ARE NOT DESIGNED ...
0
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0answers
21 views
Wiring on washing machine lock [migrated]
I'm trying to replace my washing machine (Haier MHS1000TVE) lock (in photo):
To do so, I have to determine the correct wiring, that is, which one is Common (C), which one is Line (L) and which one is ...
0
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0answers
52 views
Compatible tab width between quick connects / fastons
I have a hobby project where I bought this Schurter C14 power entry. This module is listed as having a quick connect termination of 0.189" (4.8mm). I figured I could use this molex quick connect crimp ...
0
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0answers
41 views
Why does my instrument gauge not work after splicing the wires?
I have spliced my motorcycle wiring harness that leads to the instrument gauge to extend the length. Now only the neutral indicator light works. I soldered and matched each color. Only thing I know is ...
15
votes
10answers
3k views
Best practice in transmitting sensor analog signal over longer distances (approx. 100') — in cost sensitive products for microcontrollers
I'm looking for best practices for transmitting an analog sensor signal over long distances to a microcontroller such as the Arduino running at 3.3v or 5v. Keeping costs low is imperative.
SPI and ...
0
votes
2answers
71 views
Wiring colors for 'intermediate' connections [closed]
It seems to that red is the color usually used to connect to the positive terminal and black is usually used to connect to the negative terminal. However, I have seen numerous other colors as '...
0
votes
1answer
57 views
DC Wiring Color Conventions
Below is a simplified version of a system I'm working on. There's over 10 devices and they all come through the ammeter and split off into each device (only using 2 devices here for simplicity).
The ...
0
votes
2answers
47 views
Wiring a 6 pin On/Off/On toggle switch (DC) 2 Pole
I bought a 2 pole 6 pin On/Off/On toggle switch that's for DC power, (25A 12V)
see here:
Toggle Switch
The only issue is that I have no idea how to wire it, as mentioned, it has labels on the back, 1,...
0
votes
0answers
58 views
USB-C Connector wiring 3 wires
Hello,
I am looking for a usb c connector suited for three wires. I can’t find them anywhere. The picture shows the broken connector from a 65w usb c charger. Can anyone tell me where I can get a ...
0
votes
1answer
37 views
How do I wire up this item (BM70 - Microchip BTLE) for prototyping
I've just received my BM70 (Microchip BLUETOOTH 5.0 BLE MODULE) via DigiKey and I'm wondering how I can wire it up.
According the BM70 Datasheet the pad holes are (are .7mm (outer) and .5mm (inner)).
...
0
votes
0answers
93 views
How to DIY BaoFeng radio-to-soundcard cable?
I've got a cheopo BaoFeng UV-5RE that i'd like to try as packet radio.
I've snipped the plug off of the headset that came with the handheld, soldered it onto some breadboard cables, and did the same ...
0
votes
3answers
90 views
How to connect multiple power rail wires together?
I'm working on a project that uses a 12 V supply, tower light, buck converter & Raspberry Pi.
I am prototyping it on a breadboard, but want a permanent home for it in an enclosure.
What would be ...
2
votes
5answers
157 views
How do I read the state of AC switch, through a microcrontroller?
I wanted to read the state of an AC switch using a microcontroller.
S1 is an SPST switch and cannot be changed.
What circuit will be required for doing this?
I'm using this for my home automation ...
0
votes
2answers
36 views
Allowable current in Ni-Cr 80 20 gauge wire?
I am creating a small oven for curing composites out-of-autoclave, and have some Ni-Cr 80 20gauge wire lying around. I need to put up to 8.6 amps through the wire at maximum. The current is ...
-1
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1answer
94 views
Electrical wiring help - generator
I'm trying to replace a regulator for a single phase generator. There is a symbol I don't understand.
What does this symbol mean?
Full diagram:
0
votes
2answers
44 views
60VAC measured when light switch is off
I'm replacing a fluorescent ceiling light with an LED fixture. I removed the entire chassis, ballast, etc, and now I'm just left with the hot/neutral cabling (no ground wire available).
I wanted to ...
0
votes
1answer
71 views
Crock pot on power inverter
I have a slow cooker crock pot thats uses 120 volts AC which range from 0.6 amps to 2 amps and consume electricity that ranges from 70 watts (low temperature) to 250 watts (high temperature). When I ...
0
votes
3answers
146 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,...
0
votes
1answer
43 views
How do you wire a Marx Generator?
I have seen videos of people actually being able to power on a Marx generator with no problems whatsoever but however they never show the complete setup and diagram of their circuit and real physical ...
0
votes
2answers
91 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: ...
0
votes
1answer
28 views
Replacing momentary button/switch on monitor control panel
There is a button that toggle inputs on my monitor and the very thin top dome/bubble came off and not I can't really press it to work, though if I use a flat head screwdriver (the diameter of the ...
0
votes
0answers
36 views
What’s an alternative to tap connections for a daisy chained wire harness?
I’m a sales rep for a CM and the customer has given us a wire design that’s not incredible cost effective, mostly because they’re using tap connections to daisy chain 24VDC and a pair of bus wires. If ...
1
vote
1answer
79 views
Very flexible and durable wires?
I'm thinking of something akin to transforming clothes into LED displays. (Not quite, but close enough.) Lots and lots of small beads (and fewer larger beads) embedded into the fabric and connected ...
1
vote
1answer
51 views
Ground wire appears live despite not being connected on either end
I have decided to add another plug outlet near an existing blind outlet box. Unfortunately I've found that the existing one doesn't have ground since it's an old building, but that's a problem for ...
0
votes
1answer
58 views
Can I link mismatched parts with jumper wires?
I'm out of my element here and I don't know much about electrical engineering so please excuse the bad terminology. A light on my car stopped working and it's a long story but the easiest way to fix ...
0
votes
2answers
226 views
How to turn a coffee machine on/off with a microcontroller? [closed]
So the thing is, I'm a computer science major and working on an IoT project which is a coffee machine powered by a Particle Photon and controlled with an Amazon Alexa skill. The problem is I have ...
0
votes
1answer
51 views
Battery connector and wire ampacity
I’m considering using a JST ACH connector with my LiPo, but I don’t understand whether the current rating on the data sheet is for aggregate or for each wire individually (which is my guess since they ...
0
votes
1answer
221 views
Wiring a multi-speed motor from a tower fan
I am trying to fix a tower fan from a friend. He found out that the motor was working, but something on the circuit board wasn't. He then took apart the board from the motor without remembering which ...
0
votes
2answers
72 views
Abusing EPS connector to power LED's?
I'm working on the wiring harness for a PC build that's going to include a bunch of (5050) LED strip lights.
The strips will be wired to fan connectors (more details at end). For testing, I've been ...
2
votes
1answer
97 views
How to terminate unused transformer pins?
What is the correct way to terminate/wire these unused transformer pins? Do they get tied to GND?
0
votes
1answer
65 views
BNC to 6.35mm Headphone jack wiring
Right now I am using KiCAD to try make a 6.35mm Headphone jack to BNC converter and am confused as to how to wire rn, tn and sn.
What do they do? This is my current KiCAD schematic.
2
votes
1answer
81 views
480v Single Phase forklift battery charger wiring?
I recently have been asked to install a battery charger that came along with a forklift purchase. It is a 480volt 1ph charger. It has terminals labled L1,N,G. The plant is wired 480v 3ph, with 277v ...
0
votes
1answer
73 views
How to charge a USB-C host with ACA alternative?
For old some micro usb devices, you can wire the ID pin so it is connected to the ground pin with a resistance of something like 36.5 kΩ. When the device is in host mode and connected to a device, ...
9
votes
3answers
3k views
What is the name/purpose of this component?
I was wondering what is the role/purpose of the electric component in the red square.
This is the schematic of a 230V single phase induction motor.
What is also not clear to me are the connections on ...
0
votes
0answers
35 views
Circuit breaker wiring: put source current on side marked with X or side with switch? [duplicate]
I am trying to wire an electrical panel in a standard manner.
I have several automation devices that take 120 Vac power. In order to protect them, I have purchased a 2-pole circuit breaker, Phoenix ...
1
vote
2answers
117 views
What to do when there is no ground cable?
I'm trying to connect a heating cable (heating tape) which is constant wattage type. This cable requires 240V. However, I realized there is no ground cable as you can see in the picture below. it only ...
0
votes
1answer
43 views
Custom USB Y cable [duplicate]
I am creating a custom dual female USB Y cable for a hardware modification project in a USB mouse. I have the wiring set up as shown, is it correct?
RED, WHITE, BLACK, GREEN, THICK BLACK from female ...
0
votes
2answers
37 views
Can I use a 32x6mm catridge fuse with a fuse holder specified at 38x10mm
This is my first time incorporating fuses in my project. I am trying to source for some DIN rail mount fuse holders and the accompanying cartridge fuses.
After much searching, I have found the fuse I ...
0
votes
2answers
117 views
Diagram shows four wires coming from my two wire power supply, what am I missing?
Completely new to electronics and I’m trying to follow a blog post to wire up a linear actuator to a dpdt relay and photocell.
I’m stuck, because the diagram I’m following is showing a total of 4 ...
0
votes
0answers
49 views
Power Distribution Blocks for DC voltage?
So, I'm pretending to use a somewhat uncommon component for my generator system. With an alternator, I will generate 24 V DC and a maximum of 100 A. My question is, can I use a power distribution ...
0
votes
1answer
91 views
What is an acceptable power dissipation in automotive wiring?
I am trying to figure out what a reasonable power dissipation would be in a 12V automotive wiring harness to determine my wire gauges.
Is there any automotive standard that specifies what voltage ...
