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

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0answers
23 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
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1answer
51 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 ...
4
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3answers
326 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 ...
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2answers
90 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?
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2answers
37 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
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1answer
58 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, ...
11
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4answers
960 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
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2answers
84 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
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3answers
64 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
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1answer
58 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
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1answer
40 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 ...
0
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1answer
79 views

Power supply automatically disables before the fan has time to reach the minimum current

I bought a power supply, which provides 5, 12 and 24V. The issue is that it has a disable if there is not a minimum current on the output after a certain amount of time. After testing with a resistor, ...
0
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3answers
97 views

Why use Optcoupler + Mosfet?

I saw this project: http://diyhacking.com/arduino-lamp-dimmer/ which I'm interessted to(except that I will have to use some 24V, still enough to hurt the Raspberry Pi). There is several things that ...
0
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3answers
70 views

Wiring multiple peltier units

First of all this question relates to powering Peltier units and not the physical relationship. I have two Peltier units and a 320w 12v supply similar to this the units are TEC12715. They are ...
0
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2answers
73 views

How to wire circuit DC Motor with LED

I'm trying to learn a bit more about forward voltage and OHM's Law but I'm not sure how to wire this circuit. I have: 1 x 4.5 DC motor (Operating Volts: 1.5- 4.5V, Nominal Volts: 4.5V, Current (no ...
0
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2answers
83 views

Ceiling speaker has 3 wires

I recently bought this ceiling speaker (http://www.3acctv.com/upload/uploads/Specification/T-103C.pdf), as shown in the PDF it has 3 wires attached to it. I am no expert in this, so I was wondering if ...
2
votes
1answer
74 views

Wiring the Mean Well RT 125D

For some projects with the Raspberry PI 2, for which I require 5V+12+24V, I baught the Mean Well RT-125D I put the switch in order to have "230V" displayed, as in my Country, the voltage is 230V. I ...
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0answers
34 views

Why does this smart card use antenna with different space between turns along different sides?

I've extracted and zoomed to 400 percent parts of image from this post. The original image features the inner parts of Visa PayWave enabled smart card. Here're card corners zoomed to 400 percent so ...
0
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1answer
17 views

ws2801Can I send data in any direction

I have bought a series of LED's they look like this. I'm working to make a bunch of modular floor panels. And I need to be sure that if I flipped the wires around it's not going to screw up the LEDs ...
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3answers
59 views

Best solution for compact wiring on stripboard

When transferring a circuit from breadboard to stripboard, I often struggle to manage the wiring; often it starts looking like an overgrown garden; the components inevitably start disappearing under ...
0
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3answers
60 views

Battery Wiring - 3 Independent systems with common ground

Background: Building a radio control wheel bot. Using a motor controller that recommends independent power supply for 1.) power to the controller and 2.) power to the motors. Also want a 3rd power ...
0
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1answer
76 views

Multimeter showing negative voltage on servo connection

I am trying too get my first (ever) servo sweeping back and forth and for some reason am having enormous difficulty with the wiring. In the Fritzing pic below, I have the circuit connected (both + ...
0
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1answer
32 views

How to bypass S-type connector for connecting a servo to an MCU/SoC

I have a TowerPro SG920 servo that I'd like to connect to an MCU/SoC (Pi or Arduino). However, the servo has an "S-type" connector (see pic above) and its 3 wires (red, black and orange) are ...
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1answer
36 views

How to determine servo signal encoding

I have a TowerPro SG90 servo which matches the "JR" brand wiring discussed here where the servo's 3 wires are as follows: Red is + Black is ...
2
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1answer
143 views

wiring AC switch with DC led

This is a follow up to a previous question I had answered. I'd like to show the following diagram. Here, I have laid out (crudely) a diagram that has 120v-110vAC from the wall going to a push ...
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1answer
89 views

What is the right way to wire a power inlet to a switch to a dual-primary transformer?

I have a fused power inlet with a voltage selector (Schaffner FN1394-10-05-11). I want to connect it through a separate DPDT switch to a transformer with dual 115V primary windings, and make ...
0
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1answer
43 views

+ve & -ve vs 5v and GND

I am learning hardware form a software background (playing with Arduino) and I am having difficulty remembering absolute wiring basics. Bu board has a 5v and gnd pin, whilst my component has + & ...
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3answers
65 views

What makes cables suitable or unsuitable for a given purpose?

I've been working on a homebrew set of VR Goggles w/ head tracking, and am just beginning to plan the cable that will connect the parts on the user's head to the electronics on the main unit (which ...
0
votes
2answers
131 views

How to solder wires to a hobby motor

I am using the cheap 1.5-3v motors from radio shack and I try heating up the connectors on the motor, but I think they are melting inside because in one case the pole now wiggles, and the other case ...
0
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1answer
61 views

Output voltage on pin 14 (A5) address input pin of SP0256

I'm playing with an SP0256 speech synthesizer. Ive bread boarded and am checking all my connections (as it doesn't work) and have found a very strange thing. Pin 14 of the IC being driven to ground. ...
0
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1answer
148 views

Wiring a step down transformer

I have a Transformer with the following writing on top of it : TFM-00053 CLASS B 130°C Z150H E154515 LEI-4 8B25 it has three thick wires on one end : Blue Brown Red ; the resistance ...
0
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1answer
41 views

I need help understanding how this stepper motor circuit works

This is my first time working with stepper motors. The motor in question is a Portescap 55M048D1B (source: http://www.digikey.com/product-detail/en/55M048D1B/403-1016-ND/417823). I am having trouble ...
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3answers
174 views

How to wire screw type banana jacks

I recently purchased some of these: Digi-Key Banana Jack. Unfortunately, I'm new and there isn't the supporting documentation I need to be able to determine how they're to be used. Unlike other ...
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0answers
44 views

What's the purpose of these peninsula-like areas in this smart card circuit?

Here's a scan of a stripped MIFARE Ultralight smart card. Note the underlined peninsula-like areas. They are simply connected from one end to the antenna track. They don't look like a patch antenna ...
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2answers
70 views

Why is outer turn of this smart card antenna wider than the other turns?

Here's a scan of a stripped MIFARE Ultralight smart card. Most of the wiring is the antenna which effectively consists of a single spiral track. The outer spiral turn clearly is a bit wider than the ...
2
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1answer
57 views

How to test/flash many modules?

Suppose I have several hundred pieces of the same module to test and flash, and the connectors themselves have wire holes in them like below. What's a good way to make the connection without ...
1
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2answers
144 views

IC pins too small for my breadboard

I recently bought some IC's with 8 and 16 pins. I was used to work with bigger ones, so now I cant test them in the breadboard without soldering an individual wire to each pin (which would probably ...
0
votes
1answer
475 views

Correct wiring for 3 wire single phase motor

I have a single phase 3 wires ( + ground ) submersible pump , I need to understand the correct wiring what type of motor is this and is the capacitor important ? the previous owner was not using this ...
0
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3answers
219 views

Wiring Emergency Stop button to disconnect two independent circuits

I am trying to use one emergency stop switch to disable two batteries that function in independent circuits. My circuit diagram is attached below. A motor controller connects to each of the exposed ...
0
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2answers
138 views

Help wiring multiple different colored LED lights

I am working on a project right now, and it is the first time that I have worked with wiring anything. I have 70 LED lights. 10 red, 10 orange, 10 yellow, 10 green, 10 blue, 10 purple, and 10 pink. I ...
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1answer
187 views

wiring for a 4 wire AC motor

I have a working garage door opener and I'd like to use its motor for building a edge sander (woodworking). The model number is the Genie IMS1000 and here is the actual picture. It has a single ...
0
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0answers
34 views

New guy on the block…first project

So I am building boom box out of an ammo can. I want the ability to be able to use external power or battery power, with the option of using a switch to go from one or the other. When on external ...
0
votes
1answer
83 views

How can I tell the full spec of my step motor just by looking ati it?

I have a retro CNC machine (EMCO F1P) in my garage that I am currently tinkering with. I would like to replace the old motor control but use the existing step motors. Unfortunately the documentation ...
2
votes
1answer
209 views

Playing WAV audio files from an SD card on Wiring board?

I'm using the Wiring framework for building a custom alarm clock. So far, I've been able to work with several Arduino libraries on Wiring, just by including Wiring.h instead of Arduino.h, as ...
2
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1answer
89 views

Contactless detection of current

So I'm wondering if it's possible to detect a current passing through a specific cable inside a bunch, without being able to touch the cable at all... In other words : Is it possible to detect the ...
-2
votes
1answer
58 views

What could cause sound system to occasionally become weak and mono until clicking 'Test' in Windows? [closed]

edit I am not looking for a repair, I am trying to learn about what could cause the strange behavior simply for the sake of science. Ok so I have an old Yamaha sound system that is mostly broken ...
0
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2answers
203 views

Soldering multiple resistors in series

I'm starting the wiring for my project and would like to solder two resistors together in series. There is good chance that the wire will be exposed to heat and gentle turbulence. What is the best ...
0
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0answers
43 views

How do I power / control a brushed 115V AC motor?

How do I power a brushed 115v AC motor? Would there be any potential damage from just wiring it to just plug into the wall or do I need a transformer and a capacitor or something? Thanks!
0
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0answers
40 views

How to rewire a 6-port usb charging hub

For a project in school I am building a product which displays and charges any device which can run from a usb port. The problem is that I have the holes for the usb ports cut out of custom positions ...
0
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1answer
104 views

Connecting components to an arduino without a breadboard

I've never worked with an arduino before, so bear with me. I'm looking to start a project with an arduino nano, and I want to keep everything as small and as light as possible. Because of this, I ...