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

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1answer
61 views

Using pot as variable resistor: should wiper be connected to spare end terminal?

I've heard somewhere that a rheostat uses two pins while a potentiometer uses three. But still, the thing i would like to know is if there's anything different with the adjustment if I wire the pots ...
0
votes
0answers
28 views

Reading a block diagram schematic for turntable

I am finding it difficult to match this block diagram, to this wiring diagram, Why does it show the POWER section feeding directly to the OUTPUT&USB PCB, but it does not show power going to the ...
0
votes
2answers
33 views

Reed switch wiring

I'm trying to connect a simple reed switch to my Raspberry to check if my door is open or not. I found plenty of tutorials online, but all of their schematics behave different, so I decided to create ...
1
vote
1answer
60 views

Physical wiring architecture for a CAN Bus

I want to wire a CAN bus for multiple motors(BLDC) in robotic arm. I am building out my motor such that they have a controller and a CAN transciever built in. There will be upto 6 motors with the ...
0
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0answers
24 views

How to wire electric blinds (UK) [migrated]

I'm looking to purchase 4 remote controlled blackout roller blinds in the UK. I'd like to have them connected to 4 switches in a single grid plate, so they match my light switches. I'd like each ...
0
votes
2answers
68 views

Guitar pickup switch LED wiring [duplicate]

simulate this circuit – Schematic created using CircuitLab Ok so I have a guitar circuit here, 2 pickups, each one has a on/off switch. I then run them into a master vol and a master tone. From ...
4
votes
2answers
156 views

Why does smart card antenna follow a “snake” pattern when approaching the chip?

This image is from this post which shows MasterCard plastic card being dissolved in acetone to have the circuitry extracted for further analysis (TL;DR further analysis failed because of chip ...
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0answers
5 views

What is the best way to repair these motorbike wires? [migrated]

2 of the wires on my motorbike were cut and used to hotwire it. It's been recovered and I need to permanently connect these back together. What would be the best and easiest way to do this? An image ...
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vote
1answer
155 views

how to drill anti-rotation holes in enclosures?

I am wondering how those holes with a flat for connectors are opened in enclosures. I'd like to know how do to it when prototyping world and in production for aluminum and in plastic.
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1answer
69 views

Wiring a 5 Pin LED Switch

So my problem is that I need to wire up a 5 pin LED switch to a motor and a car battery. Seems easy enough... But I need the LED to be on at all times. That is the bit I'm getting stuck with. ...
0
votes
1answer
55 views

The right gauge wire for a 12v parallel wiring to LEDS and heat sink

enter image description here Hey guys would love your expertise on a project, I'm just a beginner on this stuff. I'm building an LED panel with a total wattage output of about 480W. My question ...
0
votes
1answer
73 views

Fixing a headset, TRRS [closed]

First of all I'm not sure if this is the correct site for this question but: I am trying to fix a head phone jack for my headset with a TRRS headphone replacement. This is the connections of the ...
0
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1answer
44 views

Wire size for battery interconnects

I'm putting together a bank of 3 batteries, connected in parallel for use in a solar PV system. The primary load will come from a 1000W inverter (2000w surge). The inverter manual recommends using a ...
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1answer
73 views

Transistor PWM Switch H-Bridge

Update from old post I have made a completely different design and was wondering if you guys could take a look. Schematics: http://imgur.com/a/5GRe5 Description: Figure 1 is a charge pump, boosting ...
3
votes
2answers
87 views

How to power a button's LED within a guitar?

I'm working on a guitar, and the plan is to use three latching push buttons so that each pickup can be turned on and off individually. I'm fairly confident that the following diagram should work for ...
0
votes
1answer
53 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 ...
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1answer
48 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
81 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
52 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 ...
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2answers
50 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 ...
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2answers
125 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
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1answer
148 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
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1answer
85 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 ...
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0answers
62 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 ...
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2answers
120 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 - ...
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votes
1answer
334 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 ...
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1answer
45 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
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1answer
44 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. ...
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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
44 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
33 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
68 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 ...
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2answers
100 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" ...
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1answer
34 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
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1answer
72 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 ...
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votes
3answers
414 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 ...
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0answers
39 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 ...
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vote
1answer
158 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 ...
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2answers
109 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
86 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 ...
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2answers
86 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
57 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
83 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 https:/...
0
votes
1answer
44 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
67 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
98 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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votes
1answer
72 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 ...
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2answers
209 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 ...
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votes
1answer
50 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
172 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 ...