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

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My slayer exciter circuit is non functional

I built a miniature slayer exciter using this schematic: The transistor is an MPSA-05 from Central semi, the resistor is ~22Kohm the LED is a Vishay pure green 5mm, the coil is ~250t of 36 AWG wire ...
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1answer
52 views

Difference betwwen jumper wire types [closed]

What is the difference between male-to-male, male-to-female, female-to-female jumper wires?
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45 views

Reasons for a simulated circuit to oscillate when the physical circuit does not

I am building a circuit to drive a solenoid with current control. I am driving it with a circuit based on the improved howland current pump. Interestingly my simulated circuit displays a large ...
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3answers
74 views

Soldering SOT-23

I'm working on a DYI battery monitor project and the possibility of using an INA169 came up. That's a SOT-23 packaged component. I have minimal soldering skills so I'm looking for some advice: Can I ...
3
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2answers
41 views

Protoboard limitations when dealing with high impedance circuits?

I understand protoboards have several limitations for prototyping circuits. However, most information found deals with parasitic capacitance such as to cause problems with higher frequency circuits. ...
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2answers
76 views

why does the bulb light when I connect these two wires manually, but not when I plug them into the breadboard?

bulb on bulb off I am not changing the orientation of the bulb, I understand that makes no difference anyway since it's an incandescent bulb. As you can see, the difference in the pics is that ...
3
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3answers
139 views

Why are my components unconnected in the middle of the breadboard?

I have this breadboard: And I need my Integrated Circuit to be connected exactly like this (Don't pay any attention to the wires. Let's focus on the IC in the middle of the breadboard itself): ...
2
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1answer
58 views

Connecting DB25 socket to protoboard/breadboard

I need to connect a DB25 connector to a breadboard. One way I can think of is buying a solder-cup connector (e.g. http://www.digikey.ca/product-detail/en/171-025-103L001/225ME-ND/858135) and wiring it ...
3
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3answers
89 views

Jumper wire for thin connector pin / holes

I have a board with a Samtec SFM-115-L2-S-D-LC connector. This connector has 30 (15*2) pin holes, with a 0.050" / 1.27mm pitch, and accepts pins that are smaller than those used in breadboard / ...
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1answer
49 views

Arduino Project (Ultrasonic Sensor)

I've made an arduino circuit for my high school physics project. It uses an ultrasonic and an infrared detector to sense distances and operate a Servo and Leds and I am having troubles with the ...
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2answers
84 views

Strange behavior: NE555 + 7493 Ripple Counter + 4 to 16 Decoder

I have implemented the following with TTL 74LS chips: A NE555-based timer generates a clock signal every second The clock signal is fed into a TTL 7493 4-bit binary ripple counter. The 4-bit binary ...
3
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6answers
862 views

Why am I getting very different measurement results on a breadboard?

I have an AC to DC multiple output adapter. It has the following output: I set the voltage to 5V. When I measure the supplied current, I get 3.26A. Then I connect an output to it: When I ...
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2answers
97 views

Carrying your circuits in a bag without bending/messing up parts?

In my circuits lab classes, I might sometimes be working on two breadboards at once. I'll stick a breadboard or two in a plastic bag inside of a messenger bag to carry with me. Short leg components ...
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1answer
39 views

Using thin wire with a breadboard [duplicate]

I want to insert a wire into my breadboard for prototyping, however the wire is thin so it folds and frays when I try to push it into an open slot. Is there a particular type of pin I need to use in ...
0
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2answers
110 views

How to chose a diode for breadboarding?

I use Rasperry Pi / Arduino as power source (5V,3.3V) and for input/output (GPIO, Arduino headers). I reached a point when I realized, that what's in my mind needs diodes. I'm building a morse ...
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2answers
99 views

Circuit on a breadboard is not working properly

I have built the following circuit but it doesn't seem to work properly! The sound from the speaker should be maintained until the power is cut off but it is only maintained as long as the reed switch ...
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1answer
52 views

Is there an internal resistivity in buzzers?

I would like to know if there is an internal resistance in buzzers, and if yes, what could be the internal resistance for a cheap buzzer that can go up to 12V. Thank you
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1answer
69 views

Breadboard USB Mass Storage Device

I was wondering if there are any resources on building a USB mass storage device on a breadboard. I know it's not practical, but I thought it would make a fun side project and so I decided to do it. ...
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1answer
69 views

is there a solderless solution for component with pins 1.70mm apart?

I have a CAT4101 http://www.onsemi.com/pub_link/Collateral/CAT4101-D.PDF constant current LED driver which has 5 pins at 1.70 mm BSC apart. As I am a newbie I would prefer to use only a solderless ...
4
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3answers
242 views

Breadboard Resistor/Motor Not working

I'm pretty new to 'breadboard-ing' and I'm beginning to work with and need help understanding some basic concepts that I can't grasp. Basically I've made a basic circuit with a push button for an LED ...
2
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3answers
79 views

Why are components hard to insert into a breadboard?

I have just bought a breadboard, but I have notinced that the components are hard to insert into the holes (and sometimes only one pin go in and the another one go out, like a LED). In videos I see ...
3
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1answer
147 views

How approach breadboard layout using KiCad?

Rather than just piece together my breadboard layouts node by node, I'd like to be able to lay them out on the computer and optimize things by clicking and dragging rather than reconnecting jumpers ...
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2answers
159 views

Pin Configuration for Breadboard 3.5mm Stereo Audio Jack

I have this 3.5 mm stereo audio jack which can be mounted on a breadboard. Could someone please help me with the pin configuration? I'm using this audio jack to serve as input to the MT8870 DTMF ...
2
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2answers
90 views

How to use square pic controllers with breadboard

I've just started learning pic controllers and I'm collecting all the information. I've seen a lot of examples where people used breadboard with pic18. But I want to buy pic32 as the price is just a ...
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0answers
54 views

Gold flashed/plated pins and breadboard/jumper wires

I have several questions about gold flashed/plated pins. AFAIK, gold flashed pins have about 1U gold or less whereas gold plated pins have about 3U gold or more. Could one distinguish between gold ...
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4answers
272 views

How to make 9V battery clip easier to work with breadboard

I just recently started to play around with electrics. I use a breadboard as a playground and I have to plug in and out my 9V battery so many times that the clip is now broken. The tip of the lead ...
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5answers
4k views

Breadboard computer [closed]

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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83 views

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
116 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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1answer
82 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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2answers
127 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
126 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
118 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
73 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
93 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. ...
6
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2answers
411 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
92 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 ...
0
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1answer
292 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 ...
0
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1answer
111 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
86 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
75 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
232 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 ...
2
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3answers
438 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 ...
0
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2answers
44 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 ...
6
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2answers
557 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 ...
0
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3answers
146 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
151 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
3
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3answers
102 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
228 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
240 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) ...