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
37 views

Best way to switchover between 2 power supplies?

So I was trying to think of a way to make a circuit reversible across a DC-DC charger See diagram below, it will normally be on case 1, but in some circumstances, it will be need be on case 2 The ...
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35 views

My PIR sensor always has an output even if nothing is infront of it

My pir sensor always gives out an output even if nobody is infront of it. I tried using 3v,1.5v and 9v but sadly the same result. I tried changing it from retriggerable and single trigger. I followed ...
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1answer
21 views

Connecting CN3722 to Load AND Battery

Like the title says, can I do this? I got two schematics in mind about how to wire these up, which one is the correct one? This one is straightforward, but will it actually work if connected to load? ...
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7 views

Wiring from Hioneywell to Nest heatlink [migrated]

Can someone help with this. Trying to pick the C wire and the NO wire from here.
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0answers
30 views

Ive fitted new living room light.now it wont turn off [closed]

Thought I would do some DIY and fit a new living room light. I followed the Instructions now i cant turn it off. Any advise.
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1answer
49 views

Feed-through termination

I have a very basic question about rf-electronics: I tried to understand how feed-through terminators work, but I could not find a wiring diagram online. Intuitively it would make sense to me if such ...
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33 views

When connecting multiple differential pairs in a D38999 connector, is it common practice to have a ground pin for each differential pair?

I have a remote interface unit that has multiple differential pairs going to a from it. Some units that are connected have multiple pairs coming to and from. Should everyone one of the differential ...
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1answer
52 views

LED Spotlight array issues

I am making a "lightbar" for my vehicle which consists of 7x 6" diameter spot lights linked together. The specs for each of the individual lights are below: LEDs: 14x 3w OSRAM Max ...
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2answers
53 views

Newbie Assistance - Understanding Fairy Lights

I'm VERY new to EE and am learning the basics. My first goal is wiring up some small lights for my son's LEGO projects, and am trying to sort out the basics here. Right now, I'm attempting to piece ...
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0answers
44 views

How to wire MCU control signals with power and ground to control multiple external motors?

I'm working on a system based on a NodeMCU/ESP8266 WiFi controller, which controls two separate motor units, each consisting of a 12V motor and solenoid actuator. For practical reasons, I need to ...
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2answers
45 views

How many wiring combinations exist for an *n*-pin cable/connector?

This is more a pedantic question about the possible number of wiring permutations inherent to an n-pin connector and cable. Note combinations imply that elements may be used more than once (combined),...
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1answer
75 views

How can I solve these Verilog questions? [closed]

I am new to Verilog Language. I did answer the questions below but I am not sure if my answers are correct. I would appreciate verification to my answers and any feedback if I am wrong. Also, if 3rd ...
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1answer
71 views

Help interpreting car window wiring diagram

I would be grateful if anyone can help interpret the attached wiring diagram for my 2003 Toyota Camry power windows. The switch for my driver side window is busted so it is currently stuck at down. I ...
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1answer
79 views

SPI wiring SDIO pin with MISO and MOSI

I'm connecting the N76E003AT20 microcontroller to an RF module. The N76E003AT20 has 4 SPI pins: SPCLK, MISO, MOSI and SS. The module also has 4 SPI pins which are SCLK, SDIO, CSB and FCSB as shown in ...
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1answer
54 views

Where do I solder the shield wire on my USB C breakout?

First of all, I'm new to all this so I most probably won't understand complicated explanations. I'm planning to solder a USB-C breakout to my old keyboard's wires, but I'm not entirely sure where to ...
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1answer
65 views

Building a RS232 switch [closed]

I have an RS232 input and 2 audio lines that I want to switch to either computer A or computer B depending on the state of a physical toggle switch. Can anyone point me in the right direction of what ...
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1answer
40 views

How to use this latching relay to simulate button press?

I'm using a PIC on a 3v3 circuit to simulate a (normally-open) button press to turn on a machine. To do this, I have some Fujitsu AL3W-K relays. Mine appear to be the double-winding latching type. The ...
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3answers
96 views

Is there any alternative to the use of a ground wire? [closed]

Is there anything that can be used as an alternative to a traditional grounding pole that is buried in the ground? Is it possible to use a lightbulb, a series of lightbulbs, or maybe an inductor in ...
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3answers
68 views

Potentiometer heats up after changing wiring

I changed wiring on my LED array. I switched from a 24 AWG to 18 Gauge cable. I used the following potentiometers. However after changing wiring, all potentiometers (tried new ones and unused) started ...
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1answer
23 views

Is it possible to wire 2 short led strips with 6 pin (ON-OFF-ON) SPDT switch

Need help. Is it possible to wire 2 short led strips with 6 pin (ON-OFF-ON) SPDT switch in that way to have: A) One led strip - ON, second - OFF; B) Both strips - ON; Components: 6-PIN SPDT switch, 1 ...
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1answer
514 views

How to identify the positive and negative connectors on a PCB connector

It's possible this question has been addressed, but I don't understand the terminology to know if it has. I have taken apart several of my older BNC-style home security cameras. What I'd like to do ...
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1answer
50 views

What gauge size and fuse should I use?

I've purchased a Thlevel Car USB Charger Socket to install in my 12v system campervan and I'm confused regarding the fuse and wire I need to use to wire things together. By my calculations, given that ...
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0answers
34 views

Multi-Tee Cluster Lights

I have a set of Lumineo 1512 Multi-Colored Clustered lights. At any given point on the line there may be between 2 and 5 wires. My Goal I want a level of my tree ...
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3answers
74 views

Two way wiring with relay during power failure

I have below circuit employed at my home. Since I used 2 way wiring between relay and manual switch, during power failure, I face problem of Lamp turning On or Off depending on switch position. Out of ...
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0answers
36 views

Effects of bootlace ferrules to connect load-cell with amplifier

My colleague and I had an argument about whether or not to use bootlace ferrules for a load-cell (4 stranded wires + 1 shield | 100mg precision | OIML C3 | max. 3kg) going into an amplifier (spring-...
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3answers
106 views

Wiring a simple 24v DC light on an output terminal on a PLC

I am using a Micrologix 1100, part number 1763-L16BWA. I have been able to get the input side working, but can’t seem to figure out the wiring for the output side. I also have an 1762-IQ8OW6 extension....
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11 views

Help Wiring PSC Motor

I'm trying to wire a PSC motor for use outside of a washing machine. I need some help identifying the wiring and where the capacitor should go. The model is WH20X10063 and I attached the only ...
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2answers
77 views

What does “preserving the logic expression” mean?

I already asked a similar question here but didn't get an answer that explained the reasoning. Now the question is I'm asked to find which of the circuits below preserves the logic expression, but I ...
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2answers
122 views

I’m an electrical idiot - can you help me?

I have overhead doors at the back of my office building. I wanted to wire up a large red LED next to the light switch so that when employees leave, the light would be red indicating the doors are up. ...
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2answers
82 views

Debate on wiring risk of positive/negative wires along a path

I came across a design of a battery pack. As you see on the photo, the red wire is positive and black is negative. The red wire lays across the top of the battery pack and comes to the connector. One ...
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4answers
165 views

How do you wire something that opens

I am trying to create a box that has a UVC light in it. I am going to have the light on the top of the box, this part will open up. The issue is the batteries and parts are at the bottom of the box ...
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1answer
56 views

How to properly wire a five color RGB LED strip?

I've worked with common anode and common cathode RGB LEDs either 12 volt or 5 volt using PWM mostly to change color. Usually then these products that I work with have the typical four color wiring ...
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0answers
55 views

Wiring a siren to an alarm system, siren isn't going off when the alarm is triggerd

Hello I have an alarm system of Jablotron Oasis 80. I want to hard wire a sirene of another brand to it Aritech S290. When the alarm goes off then the beacon of the siren is flashing, but there is no ...
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1answer
36 views

Safely wiring a 120v smoke detector externally

I am building a relay box that will cut power to an outlet if an attached 120V smoke alarm detects smoke. The relay box itself will be a grounded metal electrical box hardwired to a 3 prong plug. It ...
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0answers
59 views

How do I make a keyboard cable detachable with a USB C female port?

Alright so I'm new to all of this but I've been modding my keyboard recently and would like to get a custom cable for it. I saw this video on how to do this with a USB micro connector, however I know ...
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1answer
83 views

Why does this give me a red wire in Logisim?

Why does this gives me a red wire? Is it a bug? I'm pretty sure my wirings are correct.
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1answer
64 views

Converting an electrical schematic into a physical panel layout

I'm an undergrad researching physics, my job has been to make this electrical schematic, can I get some help figuring out the physical layout? I've basically self-taught myself enough of solidworks ...
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1answer
31 views

Wiring a switch to a new power supply for a 12v lamp

I am trying to fix a sign that wouldn't light up anymore and I got confused when it came to installing the actual switch. It does work now but with the "fix" (replaced electronics of the ...
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0answers
27 views

help verifying battery schematic

The diagram below is for wiring up a 6 cell laptop battery. Visually, there are four batteries in one row, and two batteries in a second row. The cells are the usual 3.7v 18650 cells. I am pretty sure ...
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1answer
60 views

Where are the power, ground and LED connections on this car air conditioning PCB?

I ordered a PCB for my car air conditioning, as the old one was chewed off by rat. I lost the plug and I'm totally confused which wire would fit where. Can someone please help me in locating which pin ...
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3answers
249 views

Can I splice a standard AC power plug onto a 2-pin DIN table lamp cord?

I've acquired a table lamp with a 20W 12V bulb (possibly from IKEA?). The cord terminates with a female 2-pin DIN (41529) connector that I do not have an adapter for. Am I correct to assume that it ...
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2answers
124 views

What is the name of this wire-piercing probe?

I'm looking to get can bus data without cutting the wires. I would like to know the name of the probe pictured below and where to find it.
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1answer
60 views

Connecting a blind cable to electrical system [closed]

I am trying to connect a blind cable, (cable that doesn't have any end point connected to the grid), to the grid. This is how electrical wiring looks like. X's are lamps. and black lines in the first ...
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0answers
28 views

Headphones wiring issue jack (ground loop?)

I replaced my 3.5mm jack 4 pole but it had 5 wires shown in the image below. I connected the mic ground and stereo sound ground and soldered together in the same slot on the 3.5mm jack. BUT my friends ...
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2answers
113 views

Wiring in Thermostat (Rittal 31100) as a 24V Temperature Switch

I want to wire in the following thermostat. https://proax.ca/en/product/205417/RIT3110000 And am having a hard time understanding the wiring diagram I think I get that 5 is L and can be connected to ...
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1answer
61 views

guitar wiring ground connection

I am rewiring an old used guitar, typically you solder all the grounds to the switch or the pot case, connecting also all the cases to have a common ground. Has anyone tried a pcboard strip with ...
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1answer
79 views

Crimping tool where to crimp

I have a very cheap crimping tool and am trying to confirm where to crimp to ensure a good connection is made. I’m using red 18awg wire but the dot doesn’t really align with a spot like most crimpers. ...
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1answer
128 views

How to power solenoid valve?

I'm pretty new to electrical work in general and was wondering how I would open and close a solenoid valve. It says on the specifications that it needs 12 VDC. Do I just take a 12 volt battery and put ...
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1answer
64 views

Can I solder a plug to the end of my irrigation system power supply?

I got a new sprinkler head unit that only takes power input from a barrel plug, here is an ebay listing for the transformer it came with. It's 24VAC AC/AC transformer. Problem is my old head unit was ...
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0answers
34 views

How to wire a single phase, 3 wire motor?

So i bought a motor off of kijiji, it was an old furnace motor. I am trying to build a flat lapidary machine and use this motor to power it. However, there is no wiring diagram on the motor anywhere ...

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