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

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Breadboard computer

Is it possible to make a simple computer entirely with breadboards and basic electronic components? Is it feasible to, for example construct a scientific calculator in this way?
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Voltage of Logic Low on ICs

I'm currently trying to create a 4 bit ALU using the CD4011BE quad 2-input CMOS NAND gate ICs. However, I'm having some trouble when creating the full adders. Sometimes, when the IC outputs logic ...
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1answer
60 views

How to connect input and output on Bistable Multivibrator

I built the circuit below on my breadboard. I've checked every connection and it doesn't work. The thing I didn't know how to do was connecting the output (a LED) and the input. (a button) I did ...
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0answers
101 views

Build a T Flip-Flop without using ICs

I'm trying to build a T Flip-Flop without using ICs. I've already built a SR Latch without IC (the way we can see on Wikipedia) even though it uses two NOR gates, and it isn't that complicated. I ...
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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 ...
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2answers
92 views

What is the deal with input voltage?

Let me tell you right off the bat that I am new to electronics, more specifically the creating of electronics. I recently discovered a project that I would like to make, a pocket power supply(link at ...
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3answers
88 views

Non-inverting op amp on breadboard isn't working

I have posted this before and I have another question. I just can't get this working on a breadboard. I don't know what I am doing wrong. My voltage source is from an Arduino UNO which outputs a 5 ...
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1answer
41 views

Load Cell Data Problem - INA125P + Arduino Uno

I am currently reading data from my 30kg load cell with my Arduino UNO board and passing this data to my PC. I am using INA125P to amplify the voltage of my load cell and it is established on a bread ...
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2answers
36 views

How do I power a Twin Industries TW-E41-102B?

I just bought a Twin Industries TW-E41-102B, and I'm new to physical logic gate stuff, how do I power the breadboard? Please help!
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1answer
43 views

Fritzing doesn't treat breadboard power rails as conductors

I'm starting with Fritzing and created a simple schematic. All good. Now I want to turn in into a breadboard layout for my son to follow. All the components are there and connected with dotted lines. ...
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2answers
388 views

Purpose of breadboard “studs” on base off micro breadboards?

I recently bought some micro breadboards on Ebay. Extremely useful little things. However each have two awkward studs on their bases. See the attached photo. What I'm curious about is their ...
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1answer
63 views

Build PIC development board on bread board

I have PIC24FJ128GA202 IC only. Since development boards cost too much, I would like to build a development board on a bread board and try some sample programs on it. Like the image below: Is it ...
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1answer
83 views

Which 9 V DC Adapter Need for MB102 Breadboard Power Supply

Easy question. I'm a noob... I bought a MB102 breadboard power supply unit. But, it doesn't come with a manual. I need to get a 9V adapter for it. So, I'm not sure what I need. Does the 9V ...
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1answer
62 views

Lab power supply to breadboard

Recently I purchased a lab power supply, with banana jack output. Are there any specialized products that snap onto the breadboard on which you can connect banana jacks to deliver power to the board? ...
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2answers
51 views

Connect a bipolar stepper motor to a breadboard

I would like to connect a bipolar stepper motor, with a connector as the one in the picture, to a breadboard. Is there any adapter I can use?
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1answer
65 views

What knowledge and equipment do I need to build this device?

OK I am a Software Engineer dealing with both low level and C/C++/Java code with a Masters in Software Engineering but no knowledge of Electronic Engineering whatsoever. I wish to build a device that ...
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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 ...
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3answers
267 views

Only one LED is working on this traffic light circuit

I have a problem with my traffic light circuit. I've made sure of the wiring and everything seems right but for some reason only the yellow LED is lit constantly without it flashing and the other 2 ...
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2answers
35 views

Can I mount LTC6102 on breadboard?

LTC6102 is a shunt resistor current sensor with the following datasheet: http://cds.linear.com/docs/en/datasheet/6102fe.pdf The package Description has come on page 24. If everything is in mm, then ...
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2answers
524 views

What does it mean when components in schematics do not connect?

I'm fairly new to the whole Arduino world, and I'm just really curious about this schematic that I came across... I can read the basics of a schematic, but this one has me puzzled. What are the ...
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3answers
101 views

Breadboard max current/voltage

I've been trying to find any data sheets for either solderless or solderable breadboards to figure out what voltage/current should be safe to use on them, but either there isn't a single "official" ...
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2answers
124 views

How to bundle two breadboards?

How to hold two breadboards together in a way that they dont take apart so I can put them in my car easily and go on travel? There are so many wires between them
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3answers
88 views

Help Trobleshooting my first solderless circuit on a breadboard

I'm working on my first project from the book "Electronics All in One for dummies", chapter 6, book 1. I work through all the instruction but I cannot make the LED blinks. The circuit diagram is: ...
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2answers
158 views

Solderless headers?

Where can I find solderless headers suitable for a solderless breadboard.? This is for a raspberry pi project I'm working on which requires the mounting of an LCD screen. I have explored the ...
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1answer
142 views

18AWGX2C wire to standard breadboard

I am trying to supply 5V 3amps to my breadboard. I have an 18AWGX2C wire but it is too thick to simply connect into the breadboard inputs. Is there any way for me to connect these cables (PWR and GND) ...
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3answers
118 views

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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1answer
36 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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2answers
96 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
114 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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2answers
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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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2answers
58 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
100 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
139 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
126 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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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
95 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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6answers
597 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
401 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
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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 ...
0
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2answers
197 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
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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
78 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 ...
0
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3answers
159 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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3answers
117 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 ...
0
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1answer
232 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
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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
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0answers
372 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
157 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
176 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
55 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 ...