The wiring tag has no wiki summary.
2
votes
1answer
90 views
Need Help: Wiring LEDs with 2 source voltages
I have a series of LEDs I would like to have display at 2 brightness levels and am confused how to properly wire this. This is for additional running lights/brake lights on my bike.
LEDs - Typical ...
4
votes
1answer
87 views
How could extension cord detection be implemented in Tesla Roadster?
Googling finds evidence that Tesla Roadster electric car can detect cases when it is plugged in via extension cord.
Specifically this page lists error codes 937 and 9 meaning "extension cord ...
1
vote
1answer
85 views
Transmitting power and PWM signal through the same cable
I am working on an Arduino based project, which required to supply 24VDC at 2A and 3 PWM outputs from the main board to the other board. The 24VDC is for powering the LEDs, and PWMs are for dimming ...
4
votes
1answer
147 views
Reversing direction of a 115v ac motor using Arduino
I have a 115V brushed motor that I am controlling via Arduino. The manufacturer says it draws 1A but I'm not sure if that accounts for the initial current draw to turn it on. I've had great ease and ...
6
votes
4answers
261 views
How to handle unused wire in cable
What is the best way to handle an unused wire inside of a cable.
Let's assume I've got a cable with 4 wires, only 3 of them are used.
I could connect the 4th wire at one end to ground, at both ends ...
2
votes
1answer
49 views
Wiring optical incremental encoder
I'm trying to connect an optical encoder (Bourns EN series) to AVR microcontroller, and a few things are not clear for me from the datasheet.
At first, datasheet says that the maximum supply current ...
0
votes
1answer
54 views
correct wiring of a preamplifier and a lock-in amplifier
I've got a question regarding the correct wiring.
I'm operating a vibrating sample magnetometer. It uses two coils to detect the magnetisation via induction. The two signals are amplified and mixed ...
-5
votes
3answers
127 views
Using a CPU manually [closed]
Ok, I know this may sound dumb but, here is the thing:
I recently removed a cpu, ram and hard disk from my 10-ish year old pc. At first, I did that to understand how the pc was built. Now, the next ...
-7
votes
2answers
97 views
Send a signal through the powerline [closed]
I would like to what is the easiest and cheapest way of sending a signal through a 110 volt outlet wiring to another outlet on the same phase or on a different phase. I would like to know if a light, ...
0
votes
2answers
102 views
How to fix a broken Sharp CD-BA150 stereo with the help of a service manual? [closed]
I have a Sharp CD-BA150 stereo. Since the cd and tape decks are completely busted (doesnt play, rewind, etc.) and I have nothing to lose (I plan to throw it out anyways) I want to try to repair it ...
0
votes
1answer
36 views
Help with wiring in an Indicator light
I am working on a box for a project and I get a significant voltage drop when I wire in an indicator light.
This is an AC project and the light is a "Lamp 240v, Watts 0.5 Model 1609W21E BA".
It is ...
0
votes
1answer
93 views
How do I wire a relay board into existing series recepticles
I have a four channel relay, that I'm going to attempt to wire into a terminal block. I have experience with mains wiring and some experience with electronics, but no experience wiring relays. ...
0
votes
1answer
447 views
Wiring a GY-521 to an Arduino Uno R3?
I am searching for a non-technical picture or diagram or explicit textual instructions explaining how to wire a GY-521 Accelerometer/Gyro to an Arduino Uno R3.
I am a software developer and need ...
4
votes
1answer
178 views
Help with custom motorbike tail lights
About a week ago, I have been soldering exactly 29 LEDs to a PCB in an effort to replace my old, custom taillight bulb that came with my motorbike since I bought it. I have successfully managed to ...
3
votes
2answers
174 views
What do the green and yellow wires in a BLDC fan do?
I rescued a box of brand new 'Nidec UltraFlo V60E12BS1A7-09A032 12VDC 2.45A' fans from being thrown away and of course I haven't got the datasheet for them. The closest matching datasheet is here: ...
-1
votes
1answer
123 views
Multiple Power Sources and a Single Power Switch
I have a team and we're building an RC robot of sorts for a college competition. We require wireless video power source, Motor power source and Arduino power source.
The Arduino will run off of a 9v ...
0
votes
3answers
160 views
How feasible is it to wire into common household measuring instruments with a solid grasp of electrical engineering?
I'm studying up on EE and I have a budding grasp of circuits and ohms law so far. As I continue I wonder how feasible would it be for me to read data from existing electronic devices such as this ...
3
votes
1answer
2k views
Resolved: Howto re-wire Sony Simulview 3D glasses for Dual Play Support
Circuit board here:
These active shutter 3D glasses work by alternating a shutter lens on and off in sync with the TV and the resulting effect is that 120 Hz refresh are used for left eye, and the ...
4
votes
2answers
147 views
Ethernet Without a Switch?
How do you wire up Ethernet electrically without a switch? An approximately equivalent phrasing of this question would be what is going on electrically inside an Ethernet Hub?
To clarify, I'm not ...
2
votes
1answer
100 views
How to split a signal between 6 lines while maintaining voltage?
I'm using an FTDI adapter to power 6 separate strands of p9813 pixels. These pixels are located at least 4 feet away from the FTDI adapter. Each strand requires the single FTDI CTS out to connect to ...
3
votes
1answer
222 views
Type of cable to use for long > 100m serial connection
I am starting a project where I have two arduino-based devices positioned about 100 meters apart. The secondary device will be controlling a solar charging array and relaying stats to the main ...
0
votes
1answer
84 views
power connections for electric motor
Recently, I harvested a fist-size electric motor from an old portable space-cooler (an air-conditioner on wheels). The motor has nothing written on it at all; brand nor specs. It has 5 (five) ...
1
vote
3answers
447 views
Are the LED's in this diagram Backwards
I'm trying out a Make Project: Sound-O-Light Speakers
It has this diagram:
The LED's are backwards in this diagram, right? The "arrow" (anode) part of the LED should be hooked up to the positive ...
1
vote
1answer
88 views
What would happen to the wires if a lightning struck them? [closed]
I've got a link to this video of a lightning striking wiring between two houses in a city: http://www.youtube.com/watch?v=bLPFeW40Xrc
I wonder if the wires were melted by the current (as commenters ...
5
votes
2answers
521 views
How do I power a LCD Backlight inverter (got from a disasembled LCD screen)
I have two LCD Backlight Inverters lying around here and I want them to powerup without using any laptop part / motherboards.
I want to power it by using a simple power source, I have both AC and DC ...
3
votes
2answers
265 views
Is unshielded untwisted pair cabling fine for audio?
Noob here just trying to work out if there's much difference between the various types of cabling for use in connecting amps to speakers. I have unshielded untwisted pair cabling here at the moment.
0
votes
1answer
135 views
What is inside a telephone handset? [duplicate]
Possible Duplicate:
Determine 4p4c wiring
This might sound highly trivial, but search in google for it, you won't find a circuitry.
So what does a handset's circuitry look like?
And: ...
0
votes
1answer
130 views
Determine 4p4c wiring
I tried to make this as thorough as possible. I have a 4p4c socket + cable here. As there is no manual for german wiring I had to measure each wire against each other wire while hearing the "ready to ...
0
votes
2answers
700 views
wiring LED's in parallel - need series resistor?
I would like to confirm something I have inferred through my looking into LED wiring and also have a couple questions answered. For the sake of the examples below assume the source voltage is 5v; my ...
1
vote
2answers
342 views
male-male VGA cable wiring
I need to build a VGA cable (assemble connectors to wire).
I need a male-male cable.
Is its wiring straight or cross? (should i connect 1-1,2-2,... or something else)
Thanks
2
votes
1answer
101 views
Strange well pump wiring
The well pump in my brother's house is wired strangely to me.
A single 12/2 BX enters the disconnect box, white on one fuse and black on the other, and out 2 wires to the pressure switch and out 2 ...
3
votes
2answers
157 views
Protoboard components being used for applications with high current
If I have a few pins of a relay (which is rated for the correct current) that will carry 5A when the relay is triggered, what's the best way to wire this up?
Details: I have a breadboard with a ...
3
votes
1answer
144 views
Wiring Considerations for numerous LED's
I'm working on a hobby project where I'm going to need to wire up 40-80 (not sure exactly how many yet) LED's of various colors. Only 10-20 of them are going to be on at a time. This is going to be a ...
9
votes
2answers
343 views
What is this strange long wire for in a single induction cooking unit?
Tonight I dismantled one of those single induction hobs:
Inside there were two PCBs. The incoming mains was wired to the top left PCB, while the other contained all the low voltage components, plus ...
3
votes
1answer
4k views
What do solid/striped lines on a wire indicate?
What do solid or dashed lines on a wire indicate? Is there a difference between the solid and dashed indicators?
5
votes
1answer
183 views
Wiring different CREE LEDs together
I would like to create a light source consisting of 6 CREE XP LEDs:
4x XP-E Red - 2.3V @ 700mA Datasheet
1x XP-E White - 3.5V @ 1000mA (Datasheet is the same as above)
1x XP-C Royal Blue - 3.5V @ ...
1
vote
2answers
112 views
Switched neutral option in switch datasheet
Looking at this datasheet for a mains switch, the 'preferred option' (5503 on the sheet) is called 'switched neutral'. I cannot see how both the live and the neutral can be switched with only 3 pins, ...
9
votes
4answers
2k views
What does it mean when there is a voltage difference between ground and neutral?
Between ground and hot there's approximately 120V as expected.
I had expected the voltage difference between ground and neutral to be 0v, but instead it's 0.4V. Why would this not be the case? Is ...
0
votes
1answer
662 views
Sainsmart relay output wiring
I have a 2 Relay module from Sainsmart. http://www.sainsmart.com/arduino-pro-mini.html/
The output has 3 connections instead of just 2. I want to know which two of these three connections I need to ...
2
votes
1answer
200 views
How can I correctly wire my switch into my USB-to-Serial adapter cable?
Referring to this question:
How can I convert a 2 prong connector to USB?
I have decided to go with this solution:
(2) You could use a cheap (from $5) serial to USB adaptor and wire the switch to eg ...
2
votes
1answer
109 views
Accellerometer and arduino lillypad and wearable projects
I have just bought an Arduino Lillypad and an MMA8452 accellerometer board and i have few questions:
1) Power supply on lillypad
I know that working with accellerometers is a little bit dangerous: ...
11
votes
3answers
509 views
What's the purpose of such weird wiring inside this smart card?
Here's a scan of a stripped MIFARE Ultralight smart card
That's some plastic film with (I assume aluminum) foil wiring acting as the antenna for both powering the chip and providing radio ...
0
votes
1answer
155 views
What is the difference between a PT3 and a PT4 power lead?
I want to know the difference between a PT4 and a PT3 power lead.
Can I use them interchangeably?
http://www.cctvcamerapros.com/CCTV-Accessory-PT4-p/pt-4.htm
...
2
votes
2answers
1k views
Which is the best, clean way to join wire together
I am installing CCTV cameras and I'm using a 3A adapter to supply power to the cameras, but I have very messy results when trying to join together very small wires with electrical tape.
Is there any ...
1
vote
3answers
457 views
Should a fuse blow if both neutral/live pin in a three-point socket test live in a continuity tester?
A possible electrical/wiring problem rather than a core electronics problem; please feel free to vote to close.
I just noticed that the neutral pin, and live pin in all the 3-pin sockets in this ...
3
votes
3answers
654 views
Motor driver board - wingxine - need help with wiring
Recently I bought this motor driver but I didn't get wiring diagram for it (it's last time I bought something like this). I would like someone to provide some wiring schematics for this motor driver ...
3
votes
3answers
875 views
Splitting wires for newbies
I'm in the process of getting ready to build a car PC running Linux. One of the features I'd really like to incorporate is the ability to record car statistics from the sensors live using ODB2.
Due ...
4
votes
1answer
353 views
How do I tell sleeve from sleeve shunt on this connector?
I need to change a DC jack to a different one (with long bushing).
I'm not to sure which terminal connector is what from the manufacturer's diagram.
The DC jack is a L712A from Switchcraft ...
0
votes
2answers
519 views
How do i put a DC motor on an arduino motor shield and use it
I'm building a robot using an Arduino UNO and the standard Arduino Motor shield.
I have two 9-12V DC motors. I'm open to the possibility of using servos, but I'm currently trying to use these ...
4
votes
2answers
311 views
How do you use a screwless terminal block?
I know next to nothing about electronics, so treat me accordingly :D
I have these terminal blocks:
To the best of my understanding, wires go in, and the levers clamp down to hold the wires in the ...
