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

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2answers
49 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 ...
0
votes
1answer
19 views

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

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
47 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
62 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 ...
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0answers
29 views

How to wire an LMD18200 and an arduino? [migrated]

Ive been working with a motor project for a while and i bought this H-bridge(LMD18200). I dont understand how im supposed to connect it to the arduino. Here is the datasheet for the lmd18200:
0
votes
1answer
62 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 ...
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1answer
54 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
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1answer
52 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
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0answers
15 views

Neutrals from same circuit connected together…is this ok? [migrated]

Just to demonstrate something, I wanted to connect a light socket to a switch, that is connected to an electrical cord that gets plugged into a wall outlet. The switch is a standard single-pole light ...
0
votes
0answers
16 views

Muller TC 24.21 Timer Wiring Help [migrated]

A very basic question. I've just bought a digital time switch model TC 24.21 from Muller. According to the back of the timer it takes 230V~50-60Hz, and I'm a bit stuck exactly how and what to connect ...
0
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0answers
6 views

Radio Coming Thru Speakers In Home [migrated]

ive lived in a mobile home for a long time that has bad wiring and even the plug outlets are mounted bad and i have to tape plugs to the wall for them to stay in for years there never was a problem ...
1
vote
1answer
53 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
82 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
0answers
40 views

Is it possible to rewire my switched overhead light in my garage into a non-switched electrical outlet that I can plug my garage door opener into? [migrated]

I am installing an overhead automatic garage door opener. My only power source close to where I will be hanging the motor is an overhead light socket that is operated by a switch on the wall next to ...
3
votes
2answers
340 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 ...
1
vote
0answers
23 views

What is this mystery component [migrated]

My father and I have been re-wiring our home's telephone lines, and in doing so, we found these components attached to loose wires. They are both labelled "3M". One says "C22" and the other says ...
3
votes
3answers
89 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
87 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
165 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
113 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
148 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
84 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, ...
0
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1answer
53 views

Pin Type for Circuit

I'm trying to make a robotic drone from the body of an old quad copter, and I was wondering what these pins are
0
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2answers
71 views

Can someone explain part of this wiring diagram to me?

In the 208/220v diagrams for 2 pole 3 wire outlets here(http://www.automationdirect.com/static/specs/wiringdevicesnemawiring.pdf) there have an arrow between the two wires that bring in 120v each and ...
0
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2answers
76 views

74HC76 integrated really use Vcc pin?

I'm building a simple ring counter with two jk flip-flop. I'm using 74HC76 integrated that contains two jk. This is the ...
0
votes
3answers
110 views

Christmas lights - how many strands can I connect? [closed]

I am putting lights around my house this season, and am finding myself concerned about safety and what the company who makes the bulbs says is safe. I think they are being way over-cautious, because ...
0
votes
1answer
42 views

Advice on wiring power supply to digital temperature controller [closed]

I'm trying to wire a power supply to a digital temperature controller. I know squat about electrics, but am following this guide - I bought the same components he used to keep it simple, but it seems ...
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votes
2answers
81 views

Replacing TRRS Jack with TRS [closed]

I've a handset which i was using with my galaxy ace 4 then changed to experia z1 Anyway the handset butom was raising volume instead of pausing and then the jack was giving static and then it was ...
-1
votes
1answer
75 views

How to wire ADC (AD7738)

I'm trying to make sure I have it wired up properly, because I am seeing very odd outputs from my DOUT (MISO) pin and I think it may be connected to my wiring. On a rare occasion I get a good set of ...
0
votes
1answer
50 views

Output to Speakers or headphones?

I am going to be wiring up a custom circuit. Audio is output from two LR audio cables. I am going to wire them up to two mini speakers, one for each LR cord. But how do I add in a part to detect if ...
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votes
1answer
84 views

Transparent microprocessor. Ports set as imput or output

I have an electronic board which is formed by 3 microprocessors. The simplified schematic is as follows: I'm triying to update my board so i can use 2 microprocessors instead of three. So the final ...
0
votes
2answers
67 views

What type of connector is this? Looks like two pins but is only one

Aside from looking like an upside-down Wall-E, what is this connector called? It may look like there are two pins, but they are the same contact.
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0answers
51 views

Description of H1, H2, S connections on a pulse igniter

I would like to replace a piezo igniter in a small project with something that can be electronically controlled (I have created some simple hairspray-powered foam rockets, and I would like to be able ...
-1
votes
1answer
36 views

multiple series of leds off one 9v with switches [closed]

I'm trying to make a fun toy for my toddler. I have some LED's that come with a housing and on/off switch and positive/negative cable, then a bunch of led's and a few light switches I want to put in ...
-1
votes
1answer
73 views

Purpose of EDB sockets

The plugs that are made for EDB sockets can be plugged into normal sockets as well, but normal plugs can't be plugged into EDB sockets. I'm pretty sure that they have the same voltage, as my devices ...
0
votes
2answers
63 views

How can I draw power from adapter plug without damaging it?

Sorry for the vague title for I am not sure how to precisely describe it. Basically I need a 12V power source and I plan to draw the power from an AC to 12VDC power adapter. The output of that ...
0
votes
2answers
78 views

Half Adder Using 4069 and 4011 Chips

I am having trouble designing a wiring diagram for a half adder using the following two chips: CD4069 (hex inverter) HEF4011 (quad 2-input NAND) Can someone guide me in the right direction?
0
votes
1answer
47 views

Induction Motor Problem

I have an induction motor running hot and slow in the direction it's supposed to but when I change the lead wires so it runs in the opposite direction it runs as it should. Is there any reason as to ...
1
vote
1answer
55 views

Servo Motor set up

I want a servo motor to move/rotate a set distance and hold position (bear weight:which for my uses would be minimal) and then when power isn't applied/cut-off it drives back to original position. I'm ...
0
votes
1answer
134 views

Proper Method of Powering Nokia 5110

I am considering getting some Nokia 5110's for use with my Arduino Nano board but I am in a pickle because I can't tell the correct way to wire it. Some people say to power it with 3.3V and only ...
0
votes
2answers
57 views

Connection of the circuit breaker

Where is the circuit breaker connected in an electrical installation? Is it on the live line or on the neutral line of the generator? Why?
4
votes
3answers
589 views

Use network cable internal wires for Arduino project connections

I am new to Arduino and Raspberry Pi, and I have no eletronics knowledge outside of this. I have a good programming background. I just learned how to solder (basic), got my LCD working, my rain ...
-1
votes
2answers
132 views

How to combine 2 potentiometers together?

I have 2 amplifiers and each has its own variable volume pot on them to control the audio volume. How can I wire both of those to a single pot that will work with both?
1
vote
2answers
59 views

How do I connect 3 audio inputs with a switch?

I have 3 outputs from different audio sources via aux cable. I'm trying to combine them all into a box and have an easy way to change the audio source. If only one source is going to be used at a time ...
1
vote
1answer
263 views

capacitive sensor and wire length

I'm a newbie and I've been playing with the awesome Adafruit CAP1188 capacitive touch gizmo. As long as I keep the length of the wires from the CAP1188 to my copper sticky pads to a couple of feet, ...
12
votes
4answers
2k views

Schuko plug wiring

Why it is not important where we connect our hot and neutral wire when connecting them to our Schuko plug? Is it because current flows in both directions? It is only important that our ground wire ...
2
votes
2answers
126 views

Wrapping wires with nylon / wax string

In some applications I have seen a group or small bundle of wires wrapped with a black nylon and wax covered string. I am making some small bundles of wires and would like to make the wraps instead ...
1
vote
3answers
248 views

Wiring a relay for mains power

I want to make a plug that I can turn on and off with a micro controller like a raspberry pi. I picked up one of these http://www.radioshack.com/radioshack-15a-12vdc-125vac-relay/2750031.html And the ...
0
votes
1answer
82 views

Breadboard Jumper Shortcuts [closed]

This is my second question relating to this project. I am trying to make this project in the breadboard first, yet I am having trouble connecting all the resistors, and DIP switch connection with as ...
0
votes
1answer
181 views

Relay sla-05vdc-sl-c is not working on arduino uno and nano

At first time, trying to check this relay modules (I got 2 the same) they both worked nice - no problem. But now I am going tu build the temperature controller for old fridge (it is working ...