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
29 views

Combining two speaker channels (left + and -, right + and -) into a TRS style cable (left, right, common/ground)

I'm currently building a portable stereo speaker and have run into some issues. The speaker is based on a set of broken Jabra Move headphones (used as bluetooth receiver) and a XH-A323 amplifier board....
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1answer
42 views

Wires on an AC variable frequency motor

I have sourced an AC variable frequency motor, it came from some sort of excercise equipment. I would like to find out if it runs, but the wires puzzle me. The wires are: Black Red Yellow Yellow/...
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1answer
47 views

How to connect capacitor in two wire and a earthing wire in given diagram?

https://photos.app.goo.gl/uNaKCvaxDkXavrsKA In the given picture how can one add capacitor ?
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69 views

I Need Help Making a Weird Custom Flashlight

As said in the title, I am trying to make a homemade flashlight. I have no experience when it comes to electrical engineering and I have a very basic understanding of this stuff. What I am trying to ...
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11 views

LED floodlight casing live? [closed]

Outside my house I have installed LED floodlight with PIR sensor today only to discover that two screws holding the casing to the wall fixer are on 230V when light is off, and on 0V when light is on. ...
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1answer
45 views

What are the effects of small spark gaps on connectors?

I was reading about the '4th Pin' problem that effects almost all modern iPhone users. It is where the 4th pin on the lightning connector turn black and eventually will not work until it is scraped or ...
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18 views

Is there a benefit in converting a light port to a power outlet in the same room? [closed]

Is there a difference (in terms of not overworking a power outlet) between the following 2 options? Extending a 2-pin wall power outlet using a power strip Converting a light port/holder near the ...
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1answer
45 views

How do I wire a single phase 220v motor with a start capacitor AND a run capacitor, in ADDITION to start windings AND run windings?

I speak your language, as I am a 12 year veteran control tech for a boiler company. I'm doing a favor for a friend and ran into this issue. Ive wired plenty of single phase motors with start and run ...
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1answer
40 views

I'm going to wire 2 batteries together into a circuit but one has 3 wires and the other has 2 wires how can I make this work?

I have a battery in a circuit I want to add another battery which is the same voltage and amps but 2 wires can I just connect the positives and negatives and leave the white in the circuit?
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1answer
55 views

Removing wires / connectors on dishwasher circuit board

I need to remove a circuit board to send for repair, but I’m not sure how to remove these wires? I notice there’s two silver objects in two of the holes, not sure if they’re clamps or fasteners. I’ll ...
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22 views

TRRS 3.5mm audio jack wiring to sim868

I want to connect a 3.5mm trrs audio connector to sim868. The image above is my connector. But sim868 has four pins as: 1- MIC + 2- MIC - 3- SPK-N 4- SPK-P As shown in the picture above, the pins of ...
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31 views

Quick Disconnects / Connectors for 24VAC Power - Project Box

I have a small project in which I will be using 24VAC power that runs through float switches to operate relays (listed below). The 24VAC will also be used to control a small motorized ball valve (...
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2answers
45 views

Wiring a 4 pins slide switch

I want to know how can i wire this toggle switch to obtain 3 positions : Position 1 : Turn Off System Position 2 : Turn On System Position 3 : Write "High" On a microcontroller (ATtiny84) ...
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2answers
1k views

Are induction stoves considered inductive loads?

I know a washing machine and a coffee grinder are considered inductive loads so when doing math for wiring you would multiply wattage by 2x to be on the safe side. Just one plate of my inductive stove,...
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3answers
81 views

Cable selection and wiring for RS485 communication

I'm designing a sensor system where each sensor communicates via RS485 MODBUS in a high-density environment. Each line consists of 18 sensors which then goes to a gateway (Elfin EE11) that converts ...
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2answers
41 views

Splitting humbucking pickup coils with a balance pot?

Is it possible to use a balance potentiometer to blend/split the coils of a humbucking pickup on an electric guitar? A humbucking pickup is (basically) just two single-coil pickups placed close ...
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1answer
55 views

How to use a transistor to externally trigger a Canon EOS camera?

I need to trigger a Cannon EOS 650D camera externally, this is done by shorting 2 wires, leading out from a standard 2.5mm jack: The camera provides 3.3V. I want to complete the circuit and ...
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39 views

12 load sensor digital scale?

I have a unique need for a custom, foldable scale and I'm having a tough time narrowing down the components needed. My search on how to get this done has brought me here to this community. Essentially ...
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1answer
70 views

Wiring a USB 2.0 Type-C receptacle so that both orientations work

I'm trying to wire a USB Type C receptacle just for USB 2.0. If I wire A1(GND), A6(D+), A7(D-) and A9(VCC), this works, but only for one orientation (as expected). If I use the B-side data pins, that ...
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1answer
45 views

How to wire a single input for two separate chargers e-bike

I'm currently designing my own e-moped for university (named ‘enduro 器’); I am currently going through the wiring and I am in need of some assistance. (refer to the image above) I want to be able to ...
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1answer
82 views

Wiring a transformer's coils together?

just a couple quick questions. My goal is to make a powerful inductor and I was wondering if it is possible to this by connecting the primary and secondary windings of a microwave transformer in ...
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3answers
43 views

Induction Motor Wire Size

Capacitor Run Single Phase Induction Motor have very high starting currents, possibly in the order of 35-40 Amps upon startup for a 1 hp device, whereas the nominal current usually lies in the order ...
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1answer
81 views

What's wrong with this cable?

I have a circuit with an RTC (DS1307) and an LCD display, both connected to an I2C bus. Because the RTC requires a 5V level (the RTC breakout I use has built-in pullups) I also use a level shifter. ...
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2answers
4k views

What are those weird wires in the audio cables?

Trying to repair a headset cable, I discovered that it doesn't look at all like the “ordinary” cables I used to repair. I was expecting to see, inside the cable jacket, four wires, each one in a wire ...
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2answers
171 views

Wiring 3 50w LED Chips Off a 12v Battery

I have 3 of the following chips: 50w, 12v chips (https://www.amazon.com/gp/aw/d/B081QBC9MZ?ref=ppx_pt2_mob_b_prod_image) with the following specs: Features & details Current: 3750mA Voltage: DC12-...
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55 views

Update very old, very low voltage (10V) Nutone doorbell system to new 16V chime

I have a Ring video doorbell that is connected and functioning to the old doorbell wires, which I measured at 16V. I also have a old Nutone Scoville 10 V, 5 VA transformer tucked in a very hard to ...
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1answer
66 views

Adding Push-To-Talk (PTT) / Mute to 3-pin XLR Cable

Is it possible to add PTT/Mute to a 3-pin standard terminating XLR cable (with +48V phantom power)? In my case, I have found myself with a Astatic 40-119 microphone base with a PTT switch that "...
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1answer
38 views

What is the best cable for a 3d printer wire bundle?

I am connectorizing my Ender 3's hot end through a 15-pin D-sub connector, so I can swap in an E3D hotend much more easily. I have previously done this with another printer, but I am updating my ...
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1answer
85 views

cigarette lighter power plug; how to wire?

The part https://www.digikey.com/en/products/detail/mpd-memory-protection-devices/ZA1030/2439603?s=N4IgTCBcDaIF4EMCMAGAzCgtAOwCYgF0BfIA and the drawing https://www.memoryprotectiondevices.com/...
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2answers
71 views

I don’t know what smart thermostat to use with my high voltage [closed]

I think I have 120v but not 100% sure, I don’t know what the wires do. I live in a condo with water cooling/heating furnace. Can someone help explain what the wiring means. Because I do not have a ...
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1answer
52 views

Can it be safe to break both power and ground in a switch?

I have a setup with a bunch of synthesizers and guitar pedals wired together with audio cables. I'm also powering the guitar pedals all with the same multi-plug 9V adapter. Since some of the pedals ...
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1answer
33 views

Can someone tell me how i make the MACH3 software to communicate with this board?

I have a project to do in which I will need to use this board to move one of the axis of a machine. But I can't find the datasheet for that board. It serial number appears to be HW-3561224. Besides, ...
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1answer
55 views

Nema 17 stepper external wiring

I've been trying to connect a 2+ meter wire to a nema 17 motor. Usually the motors I buy come with a 1m cable, which is too short for this application. The Nema17 needs a 4 wire connection. So I ...
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1answer
67 views

Why are two of the wires in my ignition switch showing reversed continuity? [closed]

My motorcycle manual indicates that when the ignition switch is in the ON position, continuity should exist between the red and brown wires (which it does) and also between the black and black/white ...
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2answers
86 views

Just chopped two USB cables,but one of them looks unusual

I just chopped two USB cables but one of them has three white cables and one grey. The other wire has normal colouring of:-Black, Green, White, Red First wire: White White(has single orangestrand) ...
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1answer
85 views

Help wiring a pic processor to a FTD chip

I have been trying to wire a PIC18f4620 to a FTD1232 using the MLCR reset. Below is my circuit. When I hit the reset, the short causes the processor and the FTD to lose power and I am unable to ...
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2answers
87 views

Is it safe to wire a telephone to a breadboard?

I am trying to connect a hardwired 2554 telephone set. There's only a few inches of slack wire coming out of the phone since it appears it was just cut there. I managed to get about half an inch of ...
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1answer
28 views

How to wire a phocos any-grid inverter 220 v 60 HZ with two wires to a water pump 220 with 3 wires (split 220 v)

How to wire a phocos any-grid inverter 220 v 60 HZ with two wires (European style) with one hot wire 220 v and another ground, to a water pump 220 v with 3 wires (split 220 v, two 110 v hot wires and ...
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1answer
71 views

In an AC supply why does two single phase 110V wires connected to hot and neutral produces 220V

I have seen people connect 110V to the hot end and 110V to the neutral end of the socket to give a 220V to appliances like refrigerators. My understanding is that current flows, whenever there is a ...
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1answer
48 views

5 wire universal motor wiring for DC

I have a dual voltage 115/230v universal motor, which I need assistance connecting to DC power. The model is a Model D671B FASCO 1/15 hp 1550 RPM 115/208-230V with Industry number 1231.GE. The motor ...
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1answer
66 views

Vehicle wiring diagram - interpreting symbols compared to actual physical devices

I am going thru my bike's schematic/wiring diagram and going wire by wire I think I'm starting to understand how it works from turning the key onward. But some things are still confusing so perhaps ...
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0answers
35 views

Reverse polarity of 90 VDC motor with 2 foot switches

I am building a tool where I need to change the direction of the 90 VDC gear reduction motor with two foot switches. Power is coming from a motor controller with variable speed. Terminal 4 and 5 have ...
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2answers
103 views

Is there a formula to determine heat output of a wire with current applied?

I want to try and make a heating pad for starting seedling plants. I know you can buy those but I think it would be a fun learning experience to try and make one. What I don't know is how to determine ...
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3answers
546 views

How best to strain relieve cable entering aluminium enclosure

We are manufacturing electronic instrumentation which comes in a machined aluminium case. We have full flexibilty on design of the case. I need to design some form of strain relief for the single ...
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3answers
51 views

Do switches induce voltage spikes in the AC power grid?

I know that DC inductive loads create back EMF when turned off and that's why we use a freewheeling diode. Does this also true for AC inductive loads and AC loads in general? I know we can't use a ...
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2answers
80 views

Dupont wire connection sensitivity

I'm at my wit's end trying to figure out methods to separate Dupont wires. I ordered an 8 pin SOIC clip from eBay. Due to low funds I had to opt for the cheapest alternative. It arrived along with a ...
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1answer
78 views

Help understanding wiring of capacitor

I just wanted to double check my understanding of the diagram as in my mind the "visual clues" related to the way the cap is drawn seem to contradict the actual instructions of the diagram. ...
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1answer
22 views

Which UL standard(s) holds the specifications of all UL AWM styles of cabling?

Which UL standard documents the specifications of all UL AWM styles of cabling, detailing their construction, conductor sizes, insulation, etc. ? In my research, I was directed to UL Standard 758 ...
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1answer
91 views

Beginner problem: Debugging power supply

I am debugging my power supply using an oscilloscope. I have uploaded pictures of my setup, including oscilloscope reading, wiring (just power and ground with jumpers), and the power supply specs. The ...
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1answer
43 views

Help identifying 27" 2012 iMac internal plugs

I'm going to convert an old iMac into a 5k monitor, but I'd like to identify some plugs so I can have cables made rather than solder. I'm going to see if the cost (after prototype) is reasonable to ...

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