Questions tagged [wiring]
How wires connect to terminals and to each other; coloring and organization schemes; appropriate wire selection and installation techniques
1,017
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Is it normal to have a second run light switch to a ceiling fan? [closed]
I’ve purchased a home built in 1997 and updating some receptacles and switches. In this scenario I see two switches - one is a three way switch with 12/3 wire and a second switch is a single pole ...
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1
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Switch wiring method
How should I wire this type of switch? Is there a specific connector I should use to connect the wires to the switch, or can I simply ignore the screws and solder the wires directly to the switch's ...
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1
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How to wire a 6-pin relay?
I have the relay described in this datasheet. I have the z-type. It has 6 pins on the bottom.
I want to control this relay with an Arduino device and all it has to do is work like a switch.
simulate ...
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wire installation and routing [closed]
Boeing advised operators two step instruction for wiring modification, the first step corresponds to wire bundle installation and second one for wire bundle routing, I can not understand the ...
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Explanation of prefabricated wiring system [closed]
Would you mind explaining thoroughly about prefabricated wiring system characteristics and methods and its differences with traditional wiring installation and routing? Furthermore, what does partial ...
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DPDT toggle AND WiFi relay - how do I do it?
As the title states I'm trying to wire BOTH a DPDT toggle switch (on off on) and a WiFi relay.
Situation is as follows: I have a motorized ball valve which operates via a DPDT switch. There are five ...
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1
answer
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Wiring a 2-pin K1 to a 3.5 mm jack with a mic and PTT?
Is there a possibility to wire a 2-pin K1 headset connector to a 3.5 mm jack with a mic and using an external button for PTT in order to close the PTT circuit? If so, please help me, I have been ...
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Earth to live I am reading 140 volts and neutral to live I am reading full 230 volts [duplicate]
When measuring from earth to live I don't get the full voltage as expected. I suspect this is a problem with the earth wire. Maybe it is disconnected. If it is disconnected, how can it read 140 volts ...
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How to calculate the wire gauge windings when creating my-own PM BLDC Motor, 12N14P, Outrunner motor?
I am using BLDC Stator and BLDC controller at 48V @ 27A.
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Trying to find first outlet in on a circuit, but for each one, removing one leaves the other one powered [migrated]
I have a multi-outlet circuit (confirmed that all turn off when I flip the same breaker).
I had always thought the way to find out which was first in the circuit was to remove the one you are guessing ...
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Is there a proper earth ground point in this switch box? [migrated]
During humid, wet days, the phases of our house(two units) electrical system drift from another. Both phases go to each unit. One phase might be 90 volts while the other phase is 130 volts. After a ...
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How can I power a PC-fan with mains power? [closed]
I am making a project where I want to integrate an old fan I have laying around. I want to plug it into a socket and start.
In my first try connected the red and black from the converter with the ...
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33
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Lowrance Sonar Pin outputs
I have this Lowrance fish finder HDS 7 gen 3 that uses a HST-WSBL transducer to map the ocean floor. I wanted to use the transducer on its own with a Arduino. I looked into the pin-out of the fish ...
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Need help connecting a speaker to a video card
I have this video card which uses a 4-pin JST connector for the speaker:
PL+ PL- PR- PR+
I was using this speaker which has a 4-pin JST connector:
What I thought is:
One red wire is for the left (...
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1
answer
39
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How is this motor switch wired?
I've just purchased this Brooks Crompton 4 pole 3/4 HP single phase motor, that came off a Record CL3 lathe. The plate is too worn out to see any info, so I can't find a wiring diagram.
I want to use ...
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3
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Can we connect multiple devices to the mains with just 1 cable?
The project: An Arduino DIY Relay-controlled aquarium with a water pump, a heater, and a light bulb. All 3 have the exact same wires according to the EU standards: 1 "hot" brown wire and a ...
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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 ...
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How to have 5 or 6 access points in this lighting circuit?
In the diagram below, if I wanted to have access from only 3 different points, what changes would I need to make? In the diagram I have 4 access points.
What if I wanted 5 or 6 access points?
Image ...
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1
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44
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How do I branch a wire of a flex cable?
I've got a 10" (25 cm) 40-wire flex cable (similar to an IDE cable) with the well-known 2×20-pin plug on one end and a handful of Dupont connectors I will attach to the other end of the wires. ...
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A practical problem about wiring technique
When assembling an electronic enclosure and wiring, I encounter a section which I share the diagram below:
So as you see above there are three switches where some of pins are connected each other.
...
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How to wire a PIR sensor that requires neutral when local does not have one? [closed]
I have a PIR sensor/switch with the below wiring diagram. The way my lights were configured is that the load (LED light with transformer) is on the wire, so I only have two wires available instead of ...
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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 ...
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How do I connect an LED to a MOSFET board?
For the green LED, I'm using a 20 kΩ resistor. I have these diagrams that suggests the green LED should be connected to VOUT- and VOUT+:
And then this diagram suggests it should be connected to TRIG/...
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How do I wire a tactile switch to a SPST momentary push button switch?
Okay, so I have a tactile switch, it's about 6x6x6mm. I also have a SPST Momentary Push Button Switch. I'll leave the links to them from Amazon.
https://www.amazon.com/URTONE-Momentary-Stainless-...
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2
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Is the Qwiic connector just a standard JST?
I am using the Adafruit vl6180x and want to produce my own cables for it instead of the ones that Adafruit have on their site.
I could not find the Qwiic/STEMMA connector and pins on the web, nor ...
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3
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Weird voltage drop when connecting a micro-controller board to a point in a voltage divider circuit [duplicate]
I'm trying to power my ESP32 which requires an operating voltage of 3.3 V. I have a 5 V, 5 A DC power supply so I set up a voltage divider circuit with a 5 kΩ resistor and a 10 kΩ resistor, therefore ...
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Marine wiring question: Large AWG vs multiple wire bundles
Marine Electronics Installation:
3 marine depth finder units plus associated transducer modules, accessories that have a total amp draw of 15.5 Amp. I am rewiring boat to handle the load and want to ...
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1
answer
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Three-phase motor 380 V wiring
I have a motor with this connection. I find it a bit strange that it has two terminals. I think it is a two-speed three-phase motor.
Which diagram from the paper is being used in the connection and ...
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Wish to understand an AC motor electrical diagram schematic to safely connect a capacitor and switch
I have this motor (Samsung Electronics SMV-260UA) diagram and a 10 μF capacitor from a salvaged microwave:
I've experimented with supplying power, but I need start up current to kick the motor into ...
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Using 5-wire cable in single-phase electrical wiring
Most single-phase household wiring is done using 3-wire cable (L/N/PE). However, a typical room nowadays has at least two wiring groups - mains that's done with 2.5mm² and lights done with 1.5mm². ...
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Does AC wire ampere rating depend on end DC load current pull? [closed]
So between my 220V 50Hz AC source and my 12V 5-10Amps DC load I have placed a SMPS power supply which converts 220V AC to 12V DC and is rated to supply 16Amps. Now my cable to connect the 220V AC with ...
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LED Strip Wiring S Connection
Can anyone explain the best way to wire up 6 LED strips of 60 pixels in S type connection?
I'd like all of the data direction to be up, instead of up-down
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How do I find the rotation direction of a single speed, single phase universal 120VAC electrical motor?
Specs:
5hp 16 Gallon Rigid wet/dry shop vac household type
Serial Number: 09270 R 2217
Model: WD16360
120V 10A. 60Hz
Motor:
M188306380002 09241 AD
U79-251200-001E01 120V 60Hz
PROBLEM SUMMARY:
I ...
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How to replace potentiometer with MCP4725 with separate 5v lines
I'm not an electrical engineer, so maybe my concerns are not valid here:
I want to replace a physical potentiometer on a high voltage power supply, which takes 0-5v as the potentiometer input. I have ...
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How is USB 3.2 still serial when there are so many data cables?
This is a very ignorant question, as I am just getting into wiring diagrams and trying to understand them, but look at this picture of usb-C with usb 3.2:
With 2 high speed data paths, plus the old ...
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ws2812b + ESP32 + 2 meter wires
I have a WS2812B Led strip, and use a ESP32 with FastLED.
It works great, as long as the led strip is near the ESP32. as soon as I add a 2 meter extension cable between the esp and the leds it stops ...
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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 ...
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Advice on a 6-terminal, three-phase motor, with two extra wires
On the top row of terminals I have w1, v1, and u1 which I get are connected to v2, u2, and w2 on the second row of terminals. Now, on the bottom row of terminals are two wires labeled 3 and 4. Any ...
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answer
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Connecting MCP4725 Digital-Analog-Converter to "VDD" on Arduino
I have a humidity sensor that outputs humidity to my Arduino Uno. In order to send this value to my DAQ system, I am using an Adafruit MCP4725 Digital-analog converter(DAC), which turns the humidity ...
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1
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Using a 5-Pin Relay instead of a 4-Pin Relay. Is it possible?
I'm going to install a starter assist relay for my car to boost the voltage of the ignition switch signal wire (not the motor).
I need 4 pins to wire a relay for the job: 85, 86, 30 & 87.
Most of ...
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1
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Match each of three exact phases from two different supplies (distribution boxes)
I have to replace 3 phase cable powering refrigeration unit from one distribution box to another.
For refrigeration compressor is required to preserve same phase sequence.
Unfortunately, I don't have ...
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How to properly wire fuse block, DC-DC converter, and load
I have a battery, a fuse block, and three PCs (Raspberry Pi.)
Is it better to have three separate DC-DC converters in front of the fuse block with the battery directly connected to the fuse block or ...
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2
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Can I connect multiple power supplies to a single outlet?
I recently purchased two power supplies from Amazon:
https://www.amazon.ca/gp/product/B07TWW8Q73/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1
https://www.amazon.ca/gp/product/B005T6UJBU/ref=...
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2
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Why do some power supplies have multiple output channels?
I recently purchased this 24V 15A 360W AC/DC power supplies from Amazon:
https://www.amazon.ca/gp/product/B07TWW8Q73/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
Notice how it has 3 output ...
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Using the neutral wire for data transmission
I know this is a bad idea, but that does't mean I don't want to try it.
Powerline networking is a thing. It could well be they do this in the way I'm considering, but I'd imagine they probably ...
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Powering 24 V and 12 V device simultaneously from two 12 V batteries
I have two devices which need to be battery-powered (remote area, no grid power available). One device requires 24 V, the other requires 12 V. Both are very low amperage (~50 mA).
Can I use my two 12 ...
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1
answer
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Fixing one side of earphones [closed]
I have a set of stereo earphones on which the left side suddenly stopped working.
After removing the plastic covers of each ear piece, I could see that none of the wires inside had disconnected.
I ...
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1
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Is there a way to identify which wire is L and which is N on an appliance (the electrical device itself, not the wall socket)?
I have a specific question but I thought it could also be made more generic. I have this device, a Fakir HQ1200 heater:
I am an idiot and disconnected the wires before taking a picture/marking them, ...
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1
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1
answer
395
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Can I interchange hot and neutral wires on a Shelly 1 AC input? [closed]
Shelly 1 can be powered by 110-240 VAC. I will use ti as a temperature sensor and I need to power my device from a regular European socket, which means that the user can plug into the wall in any ...
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1
answer
78
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Wiring of ESP8266 to multiple digital sensor modules in input and PWM outputs
I need to have an ESP8266 connected with these components
MPU6050 gyroscope/accelerometer
HMC5883L compass
BMP280 presure sensor
GYNEO6MV2 GPS Module
and I should drive 4 PWM lines according the ...
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