Tagged Questions

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

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4
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5answers
682 views

Safety of using microcontrollers such as Arduino

I have been learning how to work with Arduino Uno R3, and it seems very intuitive and exciting for me. As many agree, I see lots of benefits of learning to use it at a young age. I would like to ...
0
votes
1answer
61 views

Regarding configuartion of 50kg load sensors with arduino due and 8-pin LM741CN Op-Amp

Please don't mind if my question is naive. I am new to this thing but I am pretty much interested in playing with these sensors. I am trying to configure the 3 wire load cell/strain guage (50 kg ...
0
votes
3answers
77 views

Breadboard with high frequency digital signals

I'm trying to interface an ADC chip with my FPGA. The ADC is on a breakout board that fits nicely into my breadboard (.1" pin spacing). The clock input from my FPGA into the breakout board is 12.5 ...
2
votes
2answers
111 views

Solderless breadboards: standard size specifications?

Are there standard sizes for solderless breadboards? For example, My teaching project is currently reaching the capacity limit of a 170 pin (17 x 10) breadboard. Is there a standard "next size ...
0
votes
1answer
45 views

Why is voltage properly siphoned off in this circuit?

This comes from the Raspberry Pi "fart detector" project. It says to place a 47k Ohm resistor connected to ground in order to siphon off a certain amount of voltage so that the voltage read from the ...
0
votes
1answer
51 views

Looking for robust reversible prototyping solutions

I've recently started making use of Arduino and Teensy microcontrollers to build various one-off pieces of equipment for my work in a neuroscience lab. Often I find that, after a device has worked ...
0
votes
3answers
112 views

Last resort debug: Voltage limiter

Note: This is a followup to a previous question that was left unanswered. The circuit has been remade on a breadboard and the symptoms are different I have been trying to make a voltage limiter ...
1
vote
2answers
76 views

Breadboard minimum lead length

What's the minimum lead length for a component in order to reliably connect with solderless breadboard contacts? Reading specs on cables, relays LEDs, and other components, what should I take as the ...
0
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2answers
105 views

Breadboard resistance and TMP36 sensor

I got a strange issue with my Arduino, and more specifically with my breadboard. I got the following circuit: ...
0
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0answers
51 views

Can you calculate parasitic elements caused by using many breadboards?

Recently, I've had the idea of building a 4-bit CPU out of RTL (Resistor Transistor Logic). Because there are so many connections, I would prefer to build this project on many breadboards. I realized ...
2
votes
1answer
133 views

Female headers for breadboard (or: how do I extend the pins of my breakout board?)

Where do I find female headers with pins just long enough (~6mm) to fit a breadboard? Ordinary socket headers such as these: have pins that are too short to stay put in the breadboard, but the ...
0
votes
0answers
68 views

How to power Common Cathode RGB LED

I'm trying to figure out how to power a common cathode RGB LED. The setup I have below does not work. I assumed power would flow to R, G, and B, and there would be a white light; but nothing. Would ...
1
vote
2answers
386 views

How much current can Solderless Breadboards handle?

I'm working on a project with a few stepper motors. I want to breadboard them so I know the circuit works well before creating a physical PCB. Each of the three motors is rated 2A, but I'll be ...
0
votes
1answer
82 views

Breadboard layout with speaker

This project is from Arduino's Examples page. The first fritz is from there. I managed to run that example without any issues. However, I had tried keeping the wires together so I tried to run the ...
1
vote
3answers
203 views

Ways to connect a PCIe/PCIe2 card and other PC parts to a breadboard?

Basically I have a bunch of rather old computer parts that I haven't been able to get rid of so I decided to do a few experiments with them but for that I need to be able to breadboard them. Things ...
2
votes
2answers
218 views

IC boost converter performs poorly in breadboard prototype circuit: is this to be expected?

I'm using a TLV61220 IC boost converter to get 3.3V from a 1.5V AAA battery. I've built the circuit as specified on the datasheet (p. 1 of http://www.ti.com/lit/ds/symlink/tlv61220.pdf) with R1 at 1MΩ ...
0
votes
4answers
270 views

Using a transistor as a switch

I am attaching a motor to an ATmega32 chip. I want to build an H-bridge but before doing that, I want to control the motor using the chip. I bought few NPN Transistors from RadioShack. I have 5V ...
2
votes
3answers
100 views

convert from ndip to dip

I have a V9958 NDIP (Narrow DIP) chip that I would like to use with a breadboard, is it possible to somehow convert NDIP to DIP or use an external adapter?
0
votes
1answer
128 views

How can I adapt a 8-WFDFN Exposed Pad to a breadboard?

I got a few of these:http://www.digikey.com/product-detail/en/DRV8837DSGR/296-34806-2-ND/3471184 without looking close enough at the package type. Is there an adapter for this so I can fit it on to a ...
0
votes
1answer
59 views

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
votes
2answers
340 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 ...
7
votes
2answers
572 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 ...
0
votes
1answer
225 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 ...
9
votes
2answers
667 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. ...
1
vote
1answer
142 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 ...
0
votes
3answers
38 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. ...
0
votes
0answers
266 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 ...
5
votes
2answers
827 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 ...
-1
votes
2answers
128 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 ...
3
votes
1answer
147 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 ...
0
votes
1answer
226 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 ...
3
votes
4answers
373 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
votes
4answers
394 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 ...
-1
votes
1answer
483 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 ...
1
vote
1answer
183 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. ...
8
votes
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 ...
0
votes
1answer
79 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 ...
1
vote
1answer
330 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 ...
0
votes
1answer
90 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 ...
2
votes
2answers
323 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
votes
1answer
120 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 ...
0
votes
2answers
2k 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 ...
5
votes
3answers
249 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 ...
0
votes
1answer
155 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 ...
0
votes
1answer
124 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 ...
0
votes
0answers
78 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, ...
0
votes
1answer
362 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. ...
1
vote
1answer
77 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 ...
10
votes
4answers
667 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) ...
2
votes
3answers
176 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?