A breadboard is a pre-made generic board for prototyping, typically referring to solder-less, reusable plugboards.

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looking to capture an infared code

I am trying to get an infared signal being sent from an emitter (think along the lines of a remote control). I know I can use a fotoransistor on a breadboard to capture/detect the signal, but I have ...
2
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2answers
256 views

Quad 2-input NAND-gate Not seems to work

I have recently bought this IC: It's a NAND gate. So just to be clear, we agree that if both inputs are 1, the output will be 0. (The IC is a Quad 2-input NAND-gate 74HCT03, the datasheet can be ...
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2answers
239 views

Using copper clad for RF projects

As a novice reading "Build Your Own Transistor Radios" by Ronald Quan I was kind of mystified by the author's statement that using "vector" board would be easier than using prototype boards, but the ...
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1answer
138 views

Circuit working in breadboard but not perfboard

I am making a circuit to unlock my car doors. The central locking in my car works with 2 wires one at 12V, the other at 0V. When the 12V line is pulled low, the door locks. When the 0V line is pulled ...
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2answers
386 views

Is it possible to attach leads to surface mount component?

I ordered an op amp to experiment with. I knew this was a surface mount component when I ordered it. I assumed that I would be able to somehow attach leads to it, so I could use it on my breadboard. ...
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64 views

Breadboard Wiring with Seven Segment Display

So I'm planning on building a skee ball machine and as I've been looking into it I've decided to use some seven segment displays from here: As I've looked into this more I know I need a breadboard ...
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38 views

Kitchen Timer With Motor and Alarm

I have basic electronics and electric knowledge I am trying to make a timing circuit that runs a motor while the timer is running could I connect a motor to the C1 leg of the circuit?
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3answers
31 views

Find product lead dimensions

I am building a project for a robot on breadboard, and I have come across the need for a voltage regulator. I have an existing voltage regulator, but it will not fit into the holes on my breadboard. ...
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90 views

How to connect LCD to breadboard without header pins?

I am trying to connect 16X2 LCD into a breadboard, but I don't have 0.1 male headers. Can I replace the pin headers by inserting wire only the metal part, after removing the rubber covering and solder ...
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2answers
809 views

What is this white board called?

I am just trying to to figure out what this is called. What I am referring to in this picture is the white board with all of the connectors and the led light attached. I am trying to purchase one ...
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2answers
93 views

does this design look suitable for a 4-bit adder

I am working on a project that will include a basic 4-bit adder, I have designed a layout is Adobe Illustrator and would like people to check over it to see if it looks like it should work. I am very ...
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1answer
60 views

Building a small 4-bit adder on a breadboard

I am very new to using IC and basically a breadboard in general, but I am doing a project on how computers add and thought it would be nice to have a practical demonstration. My main question is, for ...
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121 views

How to make prototype circuits that include microcontrollers, and avoid breadboard annoyances at high frequencies?

From my searches of the web ( as well as this question ), I have found that breadboards - like the one on picture - aren't a good idea when your application involves high frequencies. I am going to ...
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3answers
137 views

How to place a 7805 voltage regulator on a breadboard?

I have this breadboard and I have started experimenting with pic micros. In doing so I have needed a 5 volt power supply. I have seen several tutorials for wiring up 5 volt regulator circuits on a ...
2
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4answers
133 views

Finalize project: How to go from breadboard to a semi-permanent circuit

I'm tinkering with Raspberry Pi, and envision a few small applications that will require external circuits. I find the breadboard setup to be a bit too fragile for long-term use, but I'm not sure ...
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1answer
178 views

How to wire/interface a 4x3 membrane keypad

I followed this example to wire my keypad to my STM32F4 Discovery board. However any way I read data on the pins I keep getting same data which leads me to believe I wired something wrong. Here is ...
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1answer
94 views

Rising Pitch Siren Electronics Circuit Explanation

Can somebody explain me how in detail what is going in this circuit? I tried it and it was working but I cannot understand how this works. ...
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3answers
1k views

Breadboarding a Raspberry Pi

Ok, long time reader first time asker on this parcticulair stack-exchange. I am rather new to electronics, I've done some simple projects like Blinking Lights, alarms that go on when its dark and a ...
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1answer
51 views

STM8L discovery board, wires for the breadboard

I don't know if it is the right place to ask, but still I have a STM8L discovery dev board - http://www.st.com/web/catalog/tools/FM116/SC959/SS1673/PF250636 which has very small square male-type ...
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1answer
117 views

Control slot car with Arduino [duplicate]

I'm brand new at electronics, and brand new at Arduino. I know very little about eighter, so please bear over with me... :-) To top it of, this is my very first post here on Electronics. I'm working ...
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1answer
83 views

What is the purpose of a second set of 5v and ground wires found on many basic Arduino breadboard projects?

On this breadboard schematic (and many others) there are two extra wires on the right side of the breadboard. I am assuming they extend the circuit to the top side of the breadboard, but I don't ...
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2answers
165 views

Getting started with electronics - virtual breadboards with IC's? [closed]

I was looking to start getting into electronics beyond just some basic soldering and closed circuits. I've never worked with IC's before. So, a project that I wanted to try out was a LED chaser ...
5
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1answer
111 views

How to reliably and safely recreate a blue smoke monster for a workshop?

First and foremost, I'm going to say that I do and plan to continue to follow all safety best practices for working with electronics. I'm also a relative newbie, so I don't have a lot of experience ...
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2answers
677 views

Tiva C Series LaunchPad and Breadboard

I signed up for a class on edX that involves microcontroller programming, and my kit arrived today so I wanted to start experimenting a bit, the only problem is, I have no clue how to connect the ...
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3answers
203 views

Gapless breadboards?

For the most part, all solderless breadboards are alike. 5 or 6 contacts spaced 0.1" connected across, a gap (typically 0.3" wide), and 5 or 6 contacts more, and repeated x times down the other length ...
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87 views

Current Transformer - example (basic) circuit request

I'm trying to setup an XBee to monitor power usage of a device. At the moment, I'm trying to get a basic circuit setup on a breadboard, without the XBee. I have purchased a ...
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1answer
87 views

Considerations for using various AC->DC adapters of different voltages

What considerations should I take in terms volts and current when using power supplies from different devices such cell phone chargers, hair blowers, etcetera; that I've cut of the tip and soldered ...
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74 views

Beginner needs help with gathering supplies

I am a beginner looking to explore electrical engineering. Currently, I don't have any equipment bought right now, but I'm looking to buy a breadboard and a microcontroller board. Before I do so, ...
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1answer
228 views

Converting 3.3v logic level to 5v using octal bus transceiver

I'm using the Raspberry PI to communicate with various sensors and other circuits that input and output 5V logic level. The Raspberry Pi itself has 3.3V GPIOs, so i need to convert the logic levels. ...
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1answer
64 views

Schematic to breadboard circuit [closed]

I have just bought my Arduino Uno rev3. I am really interested in Arduino. For my first project I have to buy a breadboard and actually I did.I saw the schematic circuit in the book " beginning ...
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4answers
533 views

Voltage is reduced across chained breadboards

My Arduino is connected to the first breadboard. From there, I chained the positive and negative to the other boards. I have 6 breadboards connected right now. In the first board I see (with a meter) ...
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3answers
149 views

What's the difference between using SPICE and just putting things on breadboard and testing?

Can SPICE programs do most of the imaginable simulations with any kind of components in the market? Is it important to run SPICE before you do any kind of breadboard work/prototyping?
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159 views

Use Dell Laptop internal speakers with Raspberry Pi

I have some speakers from an old Dell Latitude D600 that I and a friend took apart (his brother had managed to fry the motherboard?!!?) and so we salvaged some parts, one of which is the speakers. ...
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2answers
293 views

Why isn't this single pushbutton on/off circuit working?

I built this about four times, replacing the transistors every time, carefully measuring all resistors and capacitors and putting a .1uf cap from the output to the positive. The LED light goes from ...
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3answers
446 views

What is the difference in this specific breadboard wiring?

As an absolute layperson in electronics I just found out that an LED only lights up when connected like in figure 1 but not when connected like in figure 2. And I just don't get why? I know an LED is ...
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2answers
107 views

Will two things in parallel on a bread board receive equal amps?

I drew my bread board here. If I plug two things into the power bus will I get equal amps to both devices? Sorry I don't have a multimeter yet to try it. I am planning a large project but I need to ...
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2answers
157 views

Where to connect DB9 Ground Pin on a Serial RS232 connection?

I want to connect my DIY basic stamp via RS232 MAX232 to the serial port on my laptop. Now since I'm a complete newbie in electronics, what do I do with Ground Pin 5 on the DB9? I assume ground means ...
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1answer
207 views

Getting 12V wall wart to power 12v solenoid driven by Arduino

Scenario: Power a solenoid by soldering on the gnd and pwr cables of a 12v wall wart. I found this wall wart in my house that I think will work. From what it says I assume it can transform 120v to ...
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2answers
222 views

Standard length of male header pins

I'm shopping for some bulk male header pins and noticed a lot of options for the contact length column. I know 1" is a longer pin than I'm used to and 0.1" is too short, but is there a standard length ...
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3answers
577 views

What do I need to program an ATmega 168?

I use AVR Studio for my compilation and c/c++ code (not arduino).So far I have used a Atmega 2560 development board provided by Nex robotix. I have ISP programmers of the following sorts... AVRISP ...
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1answer
143 views

Powering my projects and breadboard

I have a few differant AC to DC converters and wanted to know a good way to use them to power my breadboard and projects once they make it to strip/protoboard. One adapter is used for laptops (Part ...
2
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4answers
318 views

How to connect breakout boards to bread boards?

One of my components for a prototype lies on a breakout board. The rest are connected on a breadboard. How can I neatly connect the leads on the breakout board (seven in the picture) to rails/holes ...
1
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1answer
228 views

How to get started with electronics and specifically cheap microcontrollers? [closed]

I have a birthday coming up and would like to try and "get into" electronics. Now seems like the ideal time to finally get enough components to get started. However I need advise choosing what to get. ...
2
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1answer
818 views

2-bit adder and Multiplier

I am trying to wire a 2 bit adder and a Multiplier on my breadboard. I have the 2 bit adder somewhat done, but dont know where to start on the multiplier. I need help reading circuits and translating ...
2
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2answers
112 views

Arduino Uno starter's kit and project

Recently i bough an Arduino Uno, along with a breadboard starters kit (those two were bough separate) and i am trying to configure my first project. Looking to the breadboard instructions, if i am not ...
4
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1answer
198 views

How to implement HD74HC32 (quadruple 2-input positive-OR gate)?

I'm struggling to implement the HD74HC32 (quadruple 2-input positive-OR gate) package: My breadboard looks as following: Notes: ...
4
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2answers
829 views

Which way will I place a momentary Tactile switch in a solderless breadboard

Well I am a beginner in electronics. So, I have some 4 pin tactile switches and I am confused about placing them in the breadboard. Here is the poorly drawn photo of the two ways of placing by me. ...
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2answers
135 views

A heat sensor that powers an LED with no controller

I'm a programmer, and I can wrap my head around having a controller board which monitors a temperature sensor llike this ...
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4answers
687 views

What's an easy way to supply power to a breadboard without using batteries?

There are a number of kits available (for example sparkfun's Breadboard Power Supply USB - 5V/3.3V and Breadboard Power Supply 5V/3.3V or Adafruit's Adjustable breadboard power supply kit - v1.0) but ...
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1answer
110 views

Using on and off switches and logic gates

So I have 2 switches Representing: Bit A Bit B And then I have : AND gate OR gate Not gate Some other gates like adder and comparator I used the method described here because the Adder & ...