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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4answers
197 views

Trying to understand this electrical diagram schematic on an AC motor that I have, particularly symbol between yellow and black wires

I'm new to electrical wiring and I'm trying to learn a bit and came across this AC motor which I have that isn't hooked up. I have attached the motor wiring diagram: This is also the wiring ...
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0answers
46 views

Autostart for a humidifier [closed]

My humidifier just arrived and I couldn’t figure out how to set it up. I also bought a controller. The problem is that I can’t automate it, since when humidifier turns on it won’t start blowing. The ...
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2answers
35 views

Hardwiring USB - Switch data lines?

I am trying to hard wire a USB host to a slave, but i don't know if there is maybe a data line switch that would be there if I used a USB cable. I thought I might have to because I looked at some USB ...
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0answers
31 views

Can I wire 240v for a table saw off a 240v breaker for a dryer? [migrated]

I need to wire a 240v outlet in my garage for a table saw, there’s only one open space on our box so I was wanting to use an existing 240v breaker, (I guess another question is are double pole ...
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2answers
39 views

PT100 wiring: use different wires joined together and cable length considerations

I am trying to convert a fridge into an incubator for turtle eggs. I would like to make as little modifications to the fridge as possible (i.e: avoid drilling holes through the styrofoam) so that is ...
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0answers
48 views

Crimping die for JST-SH connectors?

I need to make up some custom Qwiic cables. (Qwiic uses JST-SH 4-pin connectors - info). I've read a bit about crimping JST connectors here, here, here and here. I also saw the other forum posts here, ...
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1answer
90 views

Connecting two different devices to multiple sensors without influencing the values

I'm currently working on a project to build a TFT dashboard for my motorcycle (based on an ESP32 as the main IC). I want to keep the original LCD dash and all its wires connected and just "split&...
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4answers
143 views

Help needed reading an audio transformer wiring schematic & impedance table

I am trying to link a transformer's schematic to its impedance table. I have trouble linking the values to the indivual pins. For now I would like to use it exactly like in the picture. My ...
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0answers
32 views

What is the correct way to wire three way switches and a single pole switch? [migrated]

I have the above setup wired up. Here is a picture of the actual wiring of the right gang box. But, the switches are clearly not wired correctly. What I am seeing when I test the switches is: 1 - the ...
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1answer
50 views

USB pinout on OMRON thermal printer

I'm trying to figure out how an OMRON Printer HEM PRT 1-Z operates (see related question on the Raspberry Pi StackExchange & IC identification question) in order to wire it to a Raspberry Pi Pico. ...
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1answer
41 views

IC identification on OMRON thermal printer

I'm trying to figure out how an OMRON Printer HEM PRT 1-Z operates (see related question on the Raspberry Pi StackExchange) in order to wire it to a Raspberry Pi Pico. Since I couldn't find any "...
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1answer
71 views

Why does a car body ECU module need to share the ground with the circuit it monitors

I am finding difficulty reading a basic wiring diagram from Bentley for my 1996 E36 BMW. I do not understand why the ECU needs to be connected to the ground. I understand that the trunk lights receive ...
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0answers
62 views

Getting the same value from a pH Probe

I am totally new and looking for some advice, please. I am trying to connect a pH Probe (PH-4502C) to a Wemos D1. I believe to have wired this up all correctly, I have wired the PO pin to the A0 pin, ...
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0answers
56 views

Using a selector switch to change between a 12 V and 20 V battery

I am working on taking a 12 V system and introducing an alternate battery source that is a 20 V battery that is stepped down to 12 V with a RioRand 7-70 V PWM DC Motor Speed Controller Switch. If I ...
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1answer
24 views

Any idea if a 2/0 3C teck cable will have fitment issues through a 1-1/2" Metal LB?

I need to feed a 45 kVA transformer and I need to use an LB to pull the conductors through. Will I have issues with the bend radius of the 2/0 conductors? It's a 3C cable. the conduit is 1-1/2" ...
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2answers
50 views

Any kind of connectors for these switches?

I've got these toggle switches - each of the legs are around 1.2mm wide. Are there any connectors for these legs - e.g. spade...but haven't seen anything 1.2mm wide. I'd prefer not to solder it. ebay ...
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0answers
28 views

Wiring my homemade LED matrix [duplicate]

I have recently had the idea for what's essentially a LED matrix that will span my entire ceiling, which will allow me to do tons of cool lighting effects, etc etc. This idea didn't come out of ...
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0answers
56 views

How did I measure AC voltage without a complete circuit?

I have a mystery I'm trying to figure out. (This is going to sound like a DIY home improvement topic, but bear with me, it's electrical.) I recently installed a new smart thermostat. It requires an ...
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2answers
47 views

Wiring to connect three USB 3A receptacles (to connect my laptop to an active usb hub from one of two locations)

I'm a total noob in electronics ) I am trying to solder three USB 3A receptacles in a way that would allow me to connect my laptop to my active USB hub from either of two locations (there will be only ...
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1answer
64 views

How to integrate a conductive adhesive sensor

I am working on my final project for uni, in which I am building an electrical circuit using a force sensor that has conductive adhesive. I am unsure how to integrate this sensor into my circuit, ...
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5answers
116 views

How to safely *temporarily* wire 120v?

I am wondering if there is any device to safely create a wire connection? More specifically, here is my most recent situation: troubleshooting a noisy 120V electric motor (fireplace blower). The motor ...
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1answer
86 views

Why is my plug socket CRACKLING?

I have one socket at my resident where I plug my laptop charger. It started crackling a few days ago and it continued every day since. Today I opened the socket and replaced it with a new one. It ...
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2answers
64 views

Ethernet RJ45 M-F cable (socket <-> plug)

During renovation I've asked the electrician to use two long patch cables originally running from my router to create RJ45 sockets with the intent to later connect the router to the socket using a ...
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0answers
106 views

Why can't my MOSFETs fit in my breadboard?

This is probably another question with obvious answers, but Googling didn't help. I bought an N-channel power MOSFET from Adafruit recently. I also bought a breadboard, also from Adafruit. However, ...
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1answer
79 views

Pre-wired LED series wiring issues

I have 40 LEDs pre-wired with resistors at 12V connected in a series and they won’t all light up. When I test a series of 5 lights together it works fine but any amount over 5 less in a series won’t ...
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1answer
53 views

DC ground connected to protective earth with a fuse

I read a document about industrial wiring example. I found this wiring example: In this picture, we have a 24VDC power supply. The input of the power supply is 220VAC. At the bottom, the ground ...
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3answers
97 views

Best practices for generating wiring diagrams

I started a new job a few months ago with a company that designs heavy machinery used in construction (excavators, backhoes, etc.). I am finding their wiring diagrams (they call them schematics) are ...
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3answers
87 views

Regarding the use of non-compliant and unconventional connectors in route to a 120v outlet receptacle? [closed]

I'm not sure how to word this so bear with me thank you. I'm rewiring my generic 65w Pen style soldering iron power cable and it would be very convenient if I could first solder it onto a 1/4" ...
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1answer
89 views

Unusual USB keyboard wiring - repair needed

New to anything electrical, and I'm trying to make an urgent fix for my wife's keyboard. She has a disability, so needs a specific keyboard to work, and the USB plug on the keyboard has been damaged ...
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1answer
317 views

Wiring to control 12V relay (SRD-12VDC-SL-C) manually

I am trying to use Raspberry pi to control a 12V relay. Before doing that, I try to do it manually. Below is my wiring based on reference 1 and reference 2. In this wiring, the PWR light is on. ...
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1answer
67 views

Need DC wiring help

I planned to use the SATA to 5 V cable to power the LCD control panel board, but there are two 5 V pins on the board so which one should I solder? Images of the board: Link to the LG monitor manual: ...
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1answer
48 views

Switching between multiple AC sources with combined neutrals but separate, independent input loads to common outlet load [closed]

OK, what I have is 4 different AC sources only one of which is connected (switched) to the outlets at a time. What problem can I expect if I combine all neutrals for all sources and outlets, combine ...
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1answer
44 views

Wiring 2 stepper motors sharing wires

Preface: I'm still new at electronics. I have two 4-pin Nema 17 steppers for the Z-axis of my 3D printer. I'm moving the control board outside the enclosure so I need to extend the existing stepper ...
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1answer
69 views

Quick question regarding CANbus wiring

New to CANbus and just wondering about something. I want two nodes connected with CANbus. They have different MCU, transceivers and so on. Question is, can I just connect these on the same wire? (see ...
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1answer
74 views

How to use Gigabit Ethernet Jacks with integrated magnetics for Fast Ethernet only

If have a Fast Ethernet PHY (LAN8720 for example) and want to use an Gigabit type of Ethernet Jack with integrated magnetics (RJMG201GMU1208R for example). Is it even possible/allowed and what would ...
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1answer
93 views

Soldering headphone wires with another wire

I am trying to solder the wires of a headset back into another wire with the exact same wiring but I’m unsure how to approach the wires that shield the copper wire. There also seems to string in the ...
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2answers
267 views

Multiple INA226 PCB for solar monitoring with a Raspberry Pi

For a project, I have a solar panel and a charge regulator with a 12V battery. The load is a Raspberry Pi. I want to monitor the voltages and the current flowing from the panel, the battery and to ...
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1answer
42 views

Solar MPPT, 24v deep-cycle battery wiring (Parallel and Series combined)

I'm asking here in case any of you can offer some insight, I have 4 x 110AH 12v Leisure deep-cycle lead-acid batteries; wires in series and parallel to bring the array voltage to 24v. I have 200w PV (...
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3answers
112 views

Identifying risks working with motorcycle wiring

I recently bought some light accessories to add to my motorcycle in order to increase visibility and safety. I was planning to have a motorcycle shop install them, I usually am willing to DIY things ...
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1answer
67 views

Can a single 15 ampere power socket be converted into two 15 ampere sockets?

I have an existing 15 ampere socket, but want to install one more 15 ampere socket near it. The electrician suggested to install it from the existing socket. I have a doubt that since the socket was ...
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2answers
218 views

Why does my ohm meter briefly display a very large resistance before slowly increasing to OL?

I have 3 single conductor wires running from my house out to my barn. They have never been used for anything. When I measure the resistance across the ends of the 3 wires I would expect them to all ...
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2answers
142 views
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1answer
92 views

Can steel nails be substituted for the silicon steel laminate in a motor/generator/alternator?

This is as diagram of a generator/alternator in which steel nails are used in place of silicon steel laminates:
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1answer
92 views

What happens inside this duct?

At the top are wires coming out of a terminal block. On the left are gray tubes running into a cabinet full of sensors, motors, etc. Are these gray tubes conduits or cables? What is happening at the ...
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2answers
83 views

What happen if one connects two live phases together? [closed]

If a house is running on 1 phase wire and is flipping instantly or not stable for a short period as it drops from 200v to 170v and return back to 200v in 10 seconds. Would connecting another phase to ...
0
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2answers
99 views

Ethernet over individual wires

I am doing the integration of an aircraft device that uses Ethernet 100BASE-T as its main communication line. The manual says the device comes with its own testing cable which is approximately 2 feet ...
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0answers
52 views

Female wires to connect 12V ECU to power supply?

I have extracted the ECU (engine control module) from car, however, this module has 3 pins that needs power input of 12V. Arduino jumper wires will not work as they won't withstand the current I need ...
0
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0answers
65 views

Continuity test isn't working on a ribbon wiring harness

I have extracted this wiring harness from the valve body of the transmission. But when I did a continuity test with a multimeter to diagnose if there was any problem with the wires, there was no ...
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2answers
74 views

Wiring button cell without soldering using household material?

I bought some hearing aid button cells for pennies. I want to use them in a toy project that connects a push button switch and an LED. I hook up the LED and switch using alligator clips without ...
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2answers
112 views

Before build: Will this circuit work, or have I overlooked something?

Some friends and I have given ourselves the goal of building a unidirectional speaker. We bought the necessary components and electronic parts. Before starting to connect everything we wanted an ...

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