How wires connect to terminals and to each other; coloring and organization schemes; appropriate wire selection and installation techniques

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1answer
20 views

replacing the auxillary end of a small portable speaker for cell phones or ipods

The speaker has a flat insulated cord with four small wires inside. Blue which is labeled left on the circuit board. Green labeled right and two bare copper wires soldered together for the ground. I ...
0
votes
1answer
51 views

Which one of these 5 pin 3 phase connectors is more standard? [closed]

Images: http://imgur.com/a/BItbR One is rated 16A "Dafr-164m" and another is rated 32A "Typ 2" We have a 16A breaker quite a ways from our house ~50m. We asked someone and they said they use both. We ...
0
votes
1answer
26 views

Wireless Induction coil wired to USB

I'm not an electrical engineer so forgive any obvious ignorance that may be unwittingly baked into the question. Background: My kids have these Disney Infinity Light FX figures that, now that ...
3
votes
1answer
75 views

Replacing screw terminal

I have a robot using the following screw terminal : On the input side 2x 8 awg wires coming from the battery, on the other side 2 x 3 wires for 2 motor drivers and 1 step-down that power a single ...
0
votes
1answer
25 views

How can I determine the the Wiring Configuration of an LVDT sensor?

I have an LVDT Sensor for measuring linear displacement similar to the one on the picture. The problem is that I don't have the manufacturer's wiring diagram and they don't provide it cause originally ...
-7
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2answers
47 views

Single Line Binary Decoder

How would I implement a single line binary decoder. Table: Input Output1 Output2 0 1 0 1 0 1 It also looks as if a flip flop would ...
0
votes
2answers
50 views

Adding an on/off switch to an USB charger [closed]

I was wondering if it is possible to wire an on/off switch into the cable of a wall-wart USB power charger as easily as it is to wire an on/off switch into a regular power cable? Or are there ...
0
votes
1answer
61 views

How to rewire a LVDS Cable?

I have a samsung LTN154X3-L03 LCD screen from an old laptop. And I was trying to use it as a second display. I bought the t.vst59.031 lcd controler board. The problem is that this board doesn't come ...
0
votes
1answer
78 views

A tidy and safe way to bundle wires and connect them to terminal posts?

I am building a power supply using an ATX powersupply. There are several wires for each: red for +5V, Yellow for +12V ans so on. The instructions I've seen instruct you to bundle the same colored ...
0
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0answers
61 views

Regarding effects of improper wiring in PC

Have found a situation with a consumer (enthusiast-level) motherboard with a 12v DC fan hand-spliced to a 3/4-pin fan header. (The header can operate as 3-pin with voltage modulation, or as a 4-pin ...
0
votes
2answers
84 views

XLR to Microphone wiring

I have an XLR cable that I am trying to wire directly to a microphone that did have a Micro XLR connected to it. I have cut the male micro XLR's from each side and am left with the following wires - ...
1
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1answer
135 views

Xbox one power adapter wiring - converting it to a 12 volt power supply

Thanks for having a look at my question. I know this may seem like an odd question but here is the history of it. I have a Solidoodle 4 3D printer, Its powered by a knock off xbox 360 brick adapter ...
0
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1answer
43 views

Power single device from two circuits

I am creating a closed loop gycol heating/cooling system for beer fermentation and lagering. The system uses a ITC-1000 temperature controller and two power supplies to feed a heating circuit and a ...
1
vote
1answer
40 views

What kind of load do US thermostat control signals drive?

This page has some really good information on heating system wiring in America. One thing I can't tell from it though, is what exactly the 24VAC call-for-heat and call-for-cool signals drive. ...
0
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0answers
29 views

Need help on wiring/identifying transformers

I have always worked with those simple kinds of transformers, two wires for primary and two for secondary. For my project i need a transformer that can supply a minimum of 20 volts up to 30 volts or ...
12
votes
5answers
1k views

Anything special to consider when running a 12v “Bus” throughout my house?

I've recently begun playing a lot with tiny programmable computers/controllers (like the Raspberry Pi and the Arduino), and I'm planning to distribute several throughout my house as various sensors. ...
0
votes
1answer
41 views

Can you run wires to an inductive heating coil or will that be a bad idea and why?

I have an inductive heating circuit that runs at around 5A at 24V (I'm estimating here). Is it possible to place the inductive heating coil a distance away from the circuit and connect the circuit to ...
1
vote
1answer
31 views

What is a good wiring configuration to minimize noise on an analog DC signal? [closed]

I am measuring a photodiode with a high precision ADC, but they are currently 0.5-1m apart. The voltage will be constant. I would like to take the measurements as quick as possible so it would be good ...
0
votes
1answer
61 views

How do I deal with very small wire which is too narrow to fit properly into a breadboard?

I've gutted a casio keyboard to design my own version of an electronic keyboard and am using the circuit board that originally was used by the keyboard as its keyboard matrix. The issue is that the ...
0
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2answers
98 views

Angle of wiring

I´m relativ new to PCB designing and therefore I have two questions. I started to design a simple 1-Layer PCB with a circular shape. In the Internet I found that a wire must not be "too long" ...
-2
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1answer
33 views

Spliced audio auxilliary cable

I spliced a wire with a headphone jack attached, the rubber cable runs two separate wires together (like speaker wire.) In one there is one coated copper wire and one uncoated copper wire. In the ...
0
votes
1answer
64 views

Is wire-wrap for components, or just special boards and pins?

Are common components suitable for wire-wrap connections? Or is wire wrap designed for a special type of pin? I just checked some resistors and diodes and found them ranging from .5-.7mm, and the ...
11
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3answers
397 views

Why an electrician wiring error could make a PC's USB shield be at 120V when it should be grounded

I almost had a serious electrical accident last week when I was trying to use an oscilloscope to test out a circuit a student had built. I had the scope plugged into a floor outlet, and the circuit ...
0
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0answers
35 views

H Bridge 555 Timer Votlage Drop

I am building the circuit presented at 4:45 in this video https://www.youtube.com/watch?v=iYafyPZ15g8 The problem is the frequency of the output of the 555 timer changes depending on the whipper but ...
1
vote
1answer
114 views

4-20mA Potentiometer to arduino questions

I've recently been messing around with the arduino uno and potentiometers. I got a potentiometer from where I work but im not sure how I should hook it up so I don't mess anything up! There are 3 ...
0
votes
2answers
71 views

How to calculate the neutral wire size of a home (department)?

I know that in electrical grid, Neutral wire is a non current carrying conductors so its cross section area is smaller than the cross section area of the live conductors. I think it has half of size ...
0
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4answers
81 views

In any electrical equipment having single ph 230 v ac supply ,if neutral and earth wire exchanged then what will be the consequence

I am handling the supply in a locomotive coach and have noticed that the neutral and earth wires have been accidentally flipped,inside the appliance(hot case) is there a problem from the safety point ...
0
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2answers
53 views

Connect Ring.co doorbell to Loxone controller

I've a ring.com doorbell which can be connected as shown in the diagram on the right. My goal would be to replace the chime in that diagram by something that can replace the push button in the left ...
2
votes
2answers
51 views

Making a TS cable with a 3-conductor wire

I want to make a guitar cable (standard 1/4 inch TS - tip-sleeve plugs). I have the appropriate plugs, but a 3-conductor (two leads and sleeve) wire. So I need to leave one conductor unused. What is ...
2
votes
1answer
71 views

software for wiring and designing electric panel [closed]

I need some help in designing an electric panel. I have designed some pcb's (Power, control, relays...) and I want to place all of them in a nice way (As shown in the pic. The pic is taken from ...
0
votes
1answer
38 views

CCFL'S wiring in a series

I’m hoping someone here can help me with a long overdue project. I’m trying to figure out how to wire multiple CCFLS to one power source + inverter... so far not much success on my own. I’m currently ...
0
votes
3answers
65 views

What fuses for 100A, 3-ph disconnects

I've been looking at 3 phase disconnects, and I'm uncertain what the rated amperage means in this context. Since each blade (phase) has its own fuse in a fusable disconnect, does that mean that for a ...
0
votes
2answers
95 views

Need advice with apartment wiring [closed]

Hello I would like to know what can happen if I connect a whole apartment that has a 12 awg internal wiring, using a 16 awg external wiring. What are the issues or dangers that I may encounter? and ...
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1answer
69 views

Help with son's 18 V car [closed]

I need help with the wiring on my son's car. I'm trying to run 2 x front and 2 x rear #QG550 12 V 45rmp motors using independent 18 V power supplies, 18 V front and 18 V rear. I wish to keep the ...
1
vote
2answers
136 views

Wiring power supply, battery and charger for portable speaker

I'm planning to build myself a small portable speaker. I'd like to include a Li ion battery and a jack for an external 12V-ish power supply. I'd also like to add a jack that will be used to charge the ...
-3
votes
1answer
48 views

what type of modification can i use in my MCU in conjunction with my SSC32? [closed]

Hello there guys im looking for a way to connect and use a DC motor with a Servo controller such as the SSC32? now given the fact that a Servo controller or driver has 3 pins, PWR GND SIG/PULSE now ...
0
votes
3answers
137 views

Wire microswitch so state can be read from Raspberry gpio

I'm trying to check whether a series of valves (described here Can I measure if current is on or off in cable with 24v DC (in a cheap way)) are open or not. Updated question to be more specific after ...
0
votes
1answer
132 views

What does FG stand for?

I have an old 12V cooler master fan that I am converting into a fume extractor for soldering and am connecting it to a standard 12v computer power supply. I am trying to wire it and am confused about ...
0
votes
1answer
81 views

What is “mains outlet tester” (for proper wiring) in the context of US power connector standard?

I'm curious about this comment. It says what ... in the US or UK you should be able to go to a hardware store and buy an outlet tester for very little money. This is a little plastic housing ...
-2
votes
1answer
90 views

Why is wiring some LEDs in series better than wiring them all in parallel?

I noticed a lot of guides for making an LED array or matrix prefer to wire their LEDs in series first and then wire strips of leds in series in parallel. What is the benefit of this Vs wiring them all ...
0
votes
1answer
78 views

Car DRL Led wiring beginners question

I bought this relay (http://www.ebay.co.uk/itm/400972235163) and this LED DRL lights (http://www.ebay.co.uk/itm/400757922989). The questions are: Can I attach 2 led lights to this relay (as it ...
1
vote
1answer
91 views

An help with my practice: a common relay as latching relay

I'm looking for some help, since, currently, I'm “studying” the latching relays. I am aware of the fact that exists pre-made latching relays of two categories: the first one with two coils: the first ...
2
votes
2answers
139 views

Adequate way to connect sensors far away from arduino

I have a simple setup when I have to read analog values from a light sensor, and I need to put it far away from the arduino (several meters away). I want to know how can I create a wired reliable ...
3
votes
2answers
366 views

switch on a long wire end causing microcontroller to shutdown

i've a push button connected to micro-controller using a 100m 18ga wire that cause the micro-controller to shutdown after few times of working properly the circuit is fully functional with a short ...
3
votes
3answers
185 views

Jumper wire for thin connector pin / holes

I have a board with a Samtec SFM-115-L2-S-D-LC connector. This connector has 30 (15*2) pin holes, with a 0.050" / 1.27mm pitch, and accepts pins that are smaller than those used in breadboard / ...
-1
votes
2answers
268 views

How to wire a stereo 3.5mm jack to a mono output [closed]

I have purchased a 3.5mm port online. I want to wire them to a mono output to a amplifier board. I have worked the ground and right and left channel terminals on the port. I am not sure how you would ...
4
votes
2answers
179 views

How to modify a Minecraft ore lamp to be always on?

Santa was kind enough to bring a really cool diamond ore lamp for Christmas!:) It's supposed to work by tapping it to turn it on, tap it again - it increases the brightness etc. The problem is that ...
1
vote
3answers
121 views

convert 5v AC to 3.3 DC

I'm working on my raspberry pi door bell and facing the electricity problems that is beyond my knowledge, please help What I have: one AC wire from door bell, it's around 0V when Idle, then when ...
1
vote
2answers
1k views

How to wire 3 phase motor to VFD

I am trying to wire a new motor to a variable frequency drive (VFD) and having some trouble figuring out how to wire the motor to the VFD. The motor is a 1 HP, 3-phase, 208-230/460 volts, and I'm ...
1
vote
1answer
106 views

Finding the correct wire

I am trying to connect my apartment door bell system to my raspberry pi; I am not too good with the wiring, and hope someone can help. What I have: 3 wires from the door bell system: red wire, ...