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

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Working with a tiny IC

I have recently purchased several Atmel's touch sensor IC's AT42QT1010 which are extremely tiny (1.6mm x 2.9mm) and I would like to be able to mount them on a breadboard. I have tried soldering them ...
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28 views

3 axis magnetometer issue in one axis

I have several 3-axis magnetometers mounted on breadboards, and they all read correctly in the x and z directions. The Y direction is very strange; when turned to read ...
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43 views

Breadboard that works with cat5 [closed]

It is possible to either construct or buy a breadboard that has cat5 plugs? I'm thinking it would be organized like a breadboard but have cat5 plugs instead of individuals. I have assumed it would ...
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2answers
72 views

AVR Rapid Fire Mod… I hit a wall and need some help

Title says it; I'm making a rapid fire mod chip with the 328p family of chips right now (I'm going to scale down to whatever the smallest chip is that will safely hold the final software). I'm a fan ...
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3answers
49 views

Keypad to set a counter

Is there a way to use a standard Matrix Keypad to set a synchronous counter IC without having to use a micro controller?
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1k views

What causes dead spots in breadboards?

What causes "dead spots" in breadboards, where chips just don't work right? My guess is that the plastic or backing metal is warped, so the holes don't line up right, or the metal is somehow ...
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42 views

What type of books/materials to buy to learn about breadboards, leds, resistors etc [closed]

I currently have a Raspberry pi and notice alot of tutorials online take advantage of something call a breadboard - which to me looks like a multi-purpose base which when used correctly we can use to ...
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1answer
65 views

Can I share the ground between 2 ac adapters with different outputs? [duplicate]

I know there are other ways I can do this, but I'm a little curious about this anyway. Basically, I have a breadboard that's mounted on a typical base that has the typical three posts I can hook ...
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2answers
80 views

Does a Breadboard Compatible DC Barrel Jack Have to be Connected to Positive and Ground to Receive Power from an Outlet?

I am using an Arduino to control an electric lock strike but I don't know how to power the lock with sufficient power. To control the lock from the Arduino, I am using a TIP31 transistor (It is NPN). ...
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2answers
82 views

Creating a basic ab + a'c circuit on a breadboard, how are the inputs placed?

I am supposed to design my first circuit on a breadboard and the output will be defined by the logical formula: ab + a'c The problem is I don't understand how are the inputs placed, a b c as inputs ...
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6answers
585 views

Single LED connected in parallel to conducting wire does not light up

LED connected in series to resistor. All is well. This doesn't work. Neither does this. This would be the schematic diagram. simulate this circuit – Schematic created using ...
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1answer
69 views

Where is a good place to start learning about electrical engineering for AVR stuff? [closed]

Can someone point me to a really good tutorial on electrical engineering, mainly avr stuff. I have looked at alot and none in my opinion really give a complete idiot like my self a good place to ...
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484 views

WLCSP MCU's - what hardware is needed for programming these tiny chips?

I just received my DigiKey order of some Atmel ATTiny4 MCU's from DigiKey. I wanted to tinker with one of the smallest MCU's I could find, and this was one of them. It is, in fact, so small because ...
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1answer
320 views

JK flip flop random start outputs

I am working on a project for college and I have to implement a sort of alarm using only MUX's and JK flip flops and a bread board. The problem I encountered is that whenever I power the whole circuit ...
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0answers
39 views

ADC not connected to PWR but still works [duplicate]

Why is my ADC readings values from my dust sensor even when I have unplugged the 3.3V input from the breadboard? I have 5V input on other rail but the ADC was only connected to the 3.3 rail... why is ...
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1answer
98 views

What's the difference between IC 74HC04 and IC 74AC04PC?

I am trying to make a simple logic gate simulation for which I require the former IC but I could only procure the latter. Will it still work?
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1answer
53 views

how to decode a USB signal on a breadboard [closed]

I would like read binary data that is not formatted. Is there any DIP to decode it?
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1answer
56 views

Breadboard jumper cable to PCB

I want to do some prototyping with a microcontroller on a breadboard. The microcontroller won't fit in the breadboard holes because it is square and small, and has many pins I won't be using. I ...
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3answers
96 views

555 timer ciruit errors

I have set up a 555 Timer circuit on my breadboard following this diagram. These are the values I use: R1: 1k R2: 1k C: 0.1uf Vcc: 9V The only problem is, on pin 5, I have a 0.001uf capacitor. ...
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75 views

Breadboard header for usbasp

I am not able to find any breadboard headers for this particular usb asp connector Here They do exist because I've seen then at school, but I can't seem to find them online. I bought breakable male ...
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1answer
92 views

Emf interference on arduino and breadboard , using 74HC595 shift register, how to prevent it?

I’m using a 74HC595 chip (shift register) NPX semiconductors, connected to and arduino board. Basically the shift register switches on and off 8 leds in sequence. Everything seem to be working, code ...
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5answers
900 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 ...
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0answers
207 views

Regarding configuration 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 ...
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3answers
109 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 ...
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2answers
133 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 ...
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1answer
49 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 ...
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1answer
56 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 ...
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3answers
128 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 ...
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2answers
86 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 ...
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2answers
124 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: ...
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0answers
54 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 ...
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1answer
244 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 ...
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101 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 ...
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973 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 ...
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120 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 ...
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3answers
252 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 ...
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2answers
274 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 ...
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4answers
335 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 ...
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3answers
129 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?
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1answer
189 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 ...
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1answer
62 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
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2answers
382 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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779 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
266 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
929 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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1answer
167 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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3answers
44 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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0answers
323 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
830 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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141 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 ...