Questions tagged [learning]

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87 views

how can i relearn electronics again [on hold]

i don't know if i can post this question here (if not please let me know where i can post it ). i have 3 or 4 mouths of summer break and i ...
0
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1answer
106 views

Need to determine a mosfet, and wouldn’t mind a little education in the process

I want to start off by saying that I am a complete electronics newb. I know a little but am always looking to learn more. With that said I am asking for a little help and a little learning. Here’s ...
2
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1answer
52 views

Variable Frequency-Response analysis (amplifier)

I'm trying to understand what the book "Basic Engineering Circuit Analysis" by Irwin is saying at the chapter of variable frequency... It's trying to amplify a signal from 50Hz to 20000Hz. Where it ...
2
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1answer
143 views

Understanding how current is 0A in secondary circuit of this potentiometer - misprint, or am I dumb?

I'm learning some basic electronics, and I'm using an old textbook (Basic Electronics for Scientists, Brophy, 1966) to wrap my head around some fundamentals. At the moment, I'm looking at ...
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2answers
74 views

Learning MPLAB XC [closed]

I am trying to learn mplab xc8. I am familiar with c and c++. I have written some code using these languages. But While I am trying to learn mplab, I couldn't find any good source or book. For example ...
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2answers
346 views

How to detect pulse duration with cmos circuit

I have created a circuit where I want to detect a pulse width , but unfortunately I can't get what I want. I think my circuit is totally wrong, I am looking online to find a solution, but the closest ...
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2answers
93 views

How Vdc and M1 are influencing the circuit in this voltage controlled oscillator

I have simulated a VCO and I want to understand the difference between the ring oscillator. In this case I have a higher frequency than in ring oscillator with same parameters of transistors. I ...
0
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2answers
169 views

What determines the frequency of the oscillator?

I want to understand what determines the frequency of this ring oscillator and how to lower the frequency.
0
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1answer
1k views

What is happening when I am adding a load capacitor in CMOS inverter

I want to simulate an invertor with CMOS. When I added a load capacitance and plotted the output voltage. I saw a sharp voltage graph so I have changed the dimensions of the transistors and got the ...
0
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1answer
31 views

Why the DC voltage doesn't affect the high pass with the NMOS Transistor?

By changing the gate-source voltage of the NMOS transistor, I can alter the resistance in the triode region. The transistor becomes a voltage-controlled resistor. I don't understand how it affects ...
-2
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1answer
217 views

Why the current in the drain of NMOS transistor is going to negative?

I am new at studying microelectronics and I really want to understand why the current in the drain goes to negative (you can see the plots in the attached files). When I am decreasing the voltage to 0....
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1answer
89 views

Where can I learn ALP? [closed]

I am a student and didn’t find any proper video even on YouTube for this. So, Where can I learn Assembly Language Programming of 8085 Microprocessor? It would be very helpful if someone would provide ...
2
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0answers
91 views

Starting point for a 10 year old [closed]

I am a EE and would like to get my 10 y.o. nephew familiar with the fun side of electrical projects. I'd like to start with basic principles and projects to re-enforce the basics. The goal is to ...
1
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1answer
357 views

Can someone extend this brief description of the superheterodine radio kit? [closed]

The Tecsun 2P3 radio kit comes with a sheet of paper with the following schema and description, but it doesn't explain too much about all the components. For a novice is a bit hard to know the sense ...
0
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2answers
232 views

How and where can I start learning about electronic? [closed]

Maybe it's an off-topic question but I really had no idea where to ask this question As a 17 years old boy, who is interested in learning about computer and devices I figured out, I really need and I ...
-3
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2answers
386 views

How can I learn interfacing Microcontrollers? [closed]

My study field was computer and I'm newbie in electronics. so sorry if my question is very simple or low level! I want to build a Microcontroller based board(I think it called MCU board?) and when I ...
0
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1answer
121 views

Oscilloscope training resources

I would like to learn to use an oscilloscope properly. I used them a few times at school, but that was a long time ago and I've forgotten most of what I learned about their use. I'm now working with ...
0
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3answers
173 views

Why does such circuit not work?

Assume I have a lamp and I connect one side to the + pole of one battery, and then the other side to the - pole of another battery (say two batteies of 1.5V). The remaining - and + poles are not ...
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4answers
252 views

beginning with programming microcontrollers [closed]

I am a software developer (coming from java and javascript/web-app programming) and I'm very interessted programming microcontrollers like arduino or espruino. The problem is I have little to no ...
0
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2answers
227 views

Where can I learn? [closed]

Ok, so first I want to say that I'm only in a mere 9th grade but done let my years dictate my experience and expertise to you. So I'm looking at open courseware but I'm not sure what course to look ...
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1answer
225 views

Electronics by Example [closed]

I am interested in learning more about electronics. I know some basics about resistors, capacitors, transistors, and diodes. I would like to learn more about things such as operational amplifiers, ...
0
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1answer
3k views

Design and build a single board computer [closed]

I want to learn how to design and build a single board computer like the Raspberry Pi. I saw a DIY project on Hack-A-Day and design something like the board in the DIY project but a bit more ...
0
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2answers
548 views

How to understand the “basics” of electricity? [closed]

I want to be a self-taught computer engineer ... massive goal, but it's what I want eventually. I check out textbooks and online resources, but I feel like I need a prerequisite somewhat -- I still ...
2
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2answers
245 views

How can I become more accomplished at reading electronics schematics?

I know what the individual electrical components do (RLC). However, how can I learn to read schematics to determine what the circuit is doing? I have seen some experienced engineers looking at ...
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2answers
246 views

Where to start with if I want to learn about wireless technology? [closed]

I am a mathematics graduate and a government employee. I completed my graduation 13 years ago. My job had no relation with academics. I was a computer illiterate 3 years back until I came across Mr. ...
0
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1answer
183 views

Digital Electronics Simulator

What online tool can I use to tinker with circuit boards / dimmers / buzzers etc? I'm wanting to learn more about electronics without spending too much time & money on buying parts I'll only use ...
3
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3answers
315 views

EE for Software engineers [closed]

Recently I've started playing a lot with 3D printers, Adrunio, Pandaboards and Kinect's SDK. I'm starting to have more and more passion for this sort of devices and I think it's about to turn into a ...
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1answer
250 views

What will I need to know to make a mini-camera? [closed]

I've recently had some trouble getting hold of a decent car dashboard camera and figured it might be a fun little pet-project to take on. I'm a software developer by trade, typically for the web. I ...
3
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3answers
1k views

Microchip PIC10 (8 bit microcontroller) learning reference. Where to start?

So I've generally learned how to use an Atmel Attiny13a, but now I have found that I need to switch to a Microchip PIC 8 bit microcontroller such as the PIC10 series. Can anyone give me some good ...
0
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1answer
2k views

How to build a telephone answering machine with caller id [closed]

I'm brand new to electronics. I'm interested in building my own telephone answering machine with caller id receiver from scratch as a learning project. How would you suggest I get started?
2
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4answers
11k views

Measure the resistance of some DC Motors

I did the following to measure the resistance of some DC motors I have and I'm wondering if I did it properly and if my conclusions are sound : I had 4 motors (same model) already connected to a ...
7
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4answers
3k views

Where can I find beginners electronics project schematics online, for free? [closed]

I have bought the following books in order to start learning basic electronics: Electronics All-In-One Desk Reference For Dummies Robot Building for Beginners (Technology in Action) My desire though,...
4
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2answers
5k views

What's a good way to start learning how electronics and circuits work? [closed]

I literally already tried getting a degree in Electrical Engineering, and I hated it, and I switched to Computer Science. But here's the thing-- I find circuits and electronics and electrical devices ...
3
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2answers
12k views

Electronics course - From basics to designing circuits [duplicate]

Possible Duplicate: From zero to “almost pro”: Newbie trying to learn. Good, quick resources? What good resources are there for a high school student to start learning electronics? ...
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4answers
502 views

Where can I learn about how to create homemade electronics

Unfortunately, all I've learnt so far are concepts. I do not know where to start, but I have made a commitment to practically build some electronics. I want to ask where can I learn and acquires the ...
0
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0answers
129 views

simple explanation of ampers, voltage, watts, current and electricitiy [duplicate]

Possible Duplicate: What is an amp (and other such basic questions) in the simplest possible terms? How can can this terms be simplified or what are some basic analogy. let say I have a 9 volts ...
4
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5answers
5k views

Learning Verilog online

Now that I'm going to be using the PSoC 5 as my microcontroller of choice, I would like to learn Verilog so I can create my own peripherals for it. I have spent some time searching the web for ...
2
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2answers
11k views

How does this SIM card reader circuit work?

The circuit for a SIM card reader is shown here. The circuit uses a CMOS hex inverter and other simple components; yet, not only does it work but it can also communicate with a PC via serial port! I ...
24
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8answers
11k views

Is it worth it learning how to use 7400 series “jelly bean” logic IC's or are they completely obsolete?

My road map for learning electronics included the 7400 series logic chips. I started in on electronics by following the labs in the "Art of Electronics" lab manual which includes labs with these chips....
3
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2answers
708 views

How hard would it be to hack a “personal soundtrack shirt”

I imagine this is an unusual question for this SE site but here it goes. I just bought a "personal soundtrack shirt" from think geek. This shirt is really cool. It comes with a built in speaker an ...
19
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13answers
4k views

Path for a child to learn electrical engineering

What are some paths for a child (7-year-old) to learn electrical engineering (in a safe way)? I do not want to saturate (or frighten away) the child with lots of concepts, I want that my son learn ...
7
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9answers
2k views

Embedded Development - Taking the Next Step

I'm going to start by telling you what I know. Then I'm going to tell you that I want to get to this magical land of knowing everything about embedded systems development. Then I'm going to ask you ...
5
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8answers
5k views

What good resources are there for a high school student to start learning electronics?

I have a couple years of experience with computers - I can program, and I know computers really well. But I don't understand them. This leads to a broader scope - I don't understand electronics in ...
15
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2answers
30k views

How does an astable multivibrator LED blinking circuit work?

I am a beginner in electronics. I come to know about the oscillator using RC circuits (capacitor charge and discharge and time constant tells the behavior of circuit). Then I saw the following ...
2
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2answers
943 views

'keyboard from scratch' registering key presses

For my first hardware hack I'm taking a stab at a 'mechanical keyboard from scratch' (where scratch means individual components). I plan to use a teensy++ board (16MHz) and was wondering about how to ...
2
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3answers
450 views

I want to learn enough image and video processing to execute a project idea, pointers?

First of all, I am a total newbie to image processing. I have a project idea, part of which will involve doing the following ...
4
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1answer
1k views

Getting started with Altera FPGAs

I am getting a Cyclone II-based Altera DE1 FPGA board to experiment with. I know a lot about programming, a bit about electronics and very little about FPGAs. What books or other resources would you ...
0
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2answers
119 views

Where can I find good documentation about memories?

I'm learning about the different kinds and functionalities of electronic memories (i.e. ram, flash, etc) but I'm a little confused because all the sources show something different and I don't know ...
45
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13answers
10k views

How to go from newbie to manufactured?

I'm a software guy who wants to get into the hardware side of things so I can enjoy the same creativity from software design in the physical world. I've found plenty of posts here regarding how to ...
7
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5answers
4k views

Learning about electronics

I'm a computer scientist with zero exposure to things directly related to hardware (barring what I learned from my undergrad computer org class.) I've been very attracted to the field of embedded ...