Questions tagged [wiring]

How wires connect to terminals and to each other; coloring and organization schemes; appropriate wire selection and installation techniques

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1answer
70 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 ...
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2answers
60 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 ...
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1answer
122 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 ...
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2answers
151 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 ...
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1answer
75 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/...
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2answers
61 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 ...
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2answers
140 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 ...
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10answers
4k 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 ...
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2answers
99 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 '...
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1answer
90 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 ...
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2answers
2k 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,...
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1answer
241 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 ...
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1answer
83 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)). ...
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1answer
1k 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 ...
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3answers
2k 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 ...
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5answers
190 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 ...
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2answers
37 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 ...
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1answer
96 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:
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2answers
118 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 ...
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1answer
881 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 ...
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3answers
1k 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,...
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1answer
50 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 ...
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2answers
750 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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1answer
191 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 ...
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1answer
107 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 ...
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1answer
87 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 ...
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1answer
64 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 ...
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2answers
498 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 ...
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1answer
68 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 ...
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1answer
2k 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 ...
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2answers
92 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 ...
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1answer
179 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?
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1answer
126 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.
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1answer
696 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 ...
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1answer
414 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, ...
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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 ...
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0answers
45 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 ...
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2answers
178 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 ...
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1answer
75 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 ...
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2answers
42 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 ...
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2answers
198 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 ...
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0answers
56 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 ...
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1answer
207 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 ...
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0answers
68 views

Trying to Understand How to connect 74LS173A in Digital Works

A little bit of background first: I found an older application that seems to be very versatile. It is called Digital Works. You can find it here. Within this application you are able to use basic ...
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1answer
82 views

Can someone explain to me the difference between these two wiring configurations?

I am trying to connect a combined pressure transducer and temperature indicator to a DAQ system by Dewesoft and this sensor has two available wiring configurations available, 3 wire and 4 wire. I'm ...
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1answer
34 views

Need advice choosing wiring configuration for combination pressure and temperature sensor

I am currently trying to purchase a combination temperature and pressure transmitter for a project, and it has an option to choose between a 3 wire or a 4 wire configuration. I have attached the link ...
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0answers
150 views

What type of sensor connection would be the most suitable?

I have a pressure transducer with a 6 pin bayonet MIL-C-26482 male connector. I need to wire this connector with a 9 pin female D sub analog input connector and I am not sure how to do so. Schematic ...
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1answer
3k views

Wiring USB 2.0 to USB C Receptacle

I have a keyboard that uses a USB 2.0 cable to connect to the computer. I would like to remove the current USB 2.0 cable and replace it with a USB C receptacle. The goal is to be able to connect the ...
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3answers
700 views

Using 220V wiring for a 12V setup

I am living in a static house that uses a 220V system for lighting fridge etc, I wish to set my solar system up using 12V not 220, I have a gas fridge and don't need 220V, I will only have 7 LED ...
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1answer
283 views

Help with wiring OEM LED turn signals that has 2 voltage inputs

The term AFS is used in the 2nd diagram to help differentiate between the bulb type turn signals vs the led type. I'm trying to swap my headlights(without-AFS) to a higher trim version(AFS) on my ...

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