Questions tagged [wiring]
How wires connect to terminals and to each other; coloring and organization schemes; appropriate wire selection and installation techniques
925
questions
3
votes
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 ...
-3
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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, ...
2
votes
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&...
1
vote
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 ...
1
vote
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 ...
1
vote
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. ...
1
vote
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 "...
0
votes
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 ...
0
votes
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, ...
1
vote
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 ...
0
votes
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" ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
-1
votes
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 ...
1
vote
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, ...
0
votes
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 ...
1
vote
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 ...
0
votes
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 ...
1
vote
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, ...
1
vote
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 ...
-1
votes
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 ...
1
vote
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 ...
0
votes
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" ...
2
votes
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 ...
0
votes
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.
...
0
votes
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: ...
0
votes
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 ...
1
vote
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 ...
0
votes
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 ...
1
vote
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 (...
0
votes
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 ...
0
votes
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 ...
3
votes
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 ...
-1
votes
2answers
142 views
How can you tell if the wires are male to male, male to female, or female to female on schematics?
This is a schematic for my UV reader.
1
vote
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:
-1
votes
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 ...
0
votes
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
votes
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 ...
0
votes
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
votes
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 ...
0
votes
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 ...
-2
votes
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 ...
