factorial1:
Hi Savotech, please where is your workshop in Lagos? Can I learn from there?

Sorry, Work took me to Delta state, so i have my workshop there now. But i have friends in Lagos that have Embedded systems training center. you can mail me on savotechng@gmail.com

uvalued:

thank you ... but since you posted have you experienced any issues?

Well, that happened in school. I finished school 2 years now. God has blessed our area, we have constant and clean power so i dont use a stab. And I also have a big gen.

This are some of various display i have made. I have made up to more than 20 different types, from monochrome to 7 colors to full colors.

farulz:
CAN SOMEONE TELL HOW TO GET THE PIC PROGRAMMER KIT IN HERE IN NIGERIA

Www.hub360.com.ng they deliver anywhere in nigeria or call 08063404828

alatbaba1:
I have been looking for a device like this for a very long time. I have an old but working air conditional unit in my room. No remote to control the temperature or switch it off. It get too cold at mid-night I find it difficult to stand up and switch it off. I need to remote controlled socket. Hw and where can I get that in Nigeria.

Check alaba at Lagos, or better still check online www.aliexpress.com you will see many varieties. If you have difficulty in importing or cant take the risk, www.hub360.com.ng will help you take care of that.

slaknoah:
Engineers and like minded Nairalanders.
For the past few days I have been disturbed and been thinking on solving this problem.
Just moved to my new apartment, and I have got this problem, my light switch is far from my bed, and situated somewhere such that I can't move my bed to the place.
The issue I have with this actually is that I have to stand up and walk up to the switch to off the light everytime I want to sleep.
This problem wrought me an idea that there is surely a way of having full control over this such that I can on and off the lights and probably other electronic gadgets around without necessarily touching the switches, and probably ANYWHERE and ANYTIME .
This might be a breakthrough to a new technology, you know.
What do you think?

This not new dear, its sold everywhere but u can continue with your research and see new features you can add to it

Pakingzzz:
The topic is quite complicated.. There are things such as fuelless generator if you can permit that lexical structure. But lots of critical features ought to be adhered to, most importantly; resonance.
There are free energy if you can permit that too. We actually use them but reckon we don't.
Mind you, the battery you think that powers your gadget doesn't produce electricity. The battery uses its chemical energy to produce dipoles. When these dipoles are created electrons surges from the vacuum to kill those dipoles. It is this electrons that you mistake to be coming from the battery.. But the true fact is; the battery just keep using up its chemical energy to create the dipoles.
This phenomena holds true only when a connection is established from the positive terminal to the negative terminal of the battery.

Secondly, how do you reckon the power holding managing to send electricity from the power station to your end using three single wires without a neutral?
They bury their neutral wire in their vicinity and send only the three phase live wires to the user. All the user does at the step down transformer end is to bury a wire deep into the ground and they now have a 'neutral' wire to go with the 'live' wire. So the earth has served as a wire right? Quite weird! But that is what gets done.. When last were you told that the earth could pass as a wire?
These are things some kabals Dont want you to be in the know.
The big generators you think that burn fuels and generate electricity Don't actually do so.. They rather create a disturbance (dipoles) at the local vicinity (wire connection). The electrons that surges in from the ambience background to scatter the disturbance (dipoles) are what you use as electricity. So you get sold on the idea you are being given electricity generated directly from the generators.
So they want you to believe, and they are silly happy you did and have been doing.

All you are doing is just to confuse people. Either electrical is generated and converted to physic phenomenon as light sound torque etc or dipole created and the load neutralize the dipole, it still means the same in a more confusing way.

If you believe there is free energy maybe you tell us how to create thevso called dipole from nothing or from sources that is not an energy source.

The 3 phase of a thing: go back to your physics and basic electricity or principles of electricity or better still google 3 phase principle, you will see it is far from what you are saying. Yes we read books and we know it might not explain all what is happening physically. I know you think deeply to come up with this fact of yours or you read it somewhere. But let me tell you what i think about it.
The earth serving as a wire is not for electricity transfer but for grounding to prevent electrical shock and other purpose and that is why the neutral doesnt shock.
DELTA CONNECTED 3 phase doesn't need a neutral to work, each phase serves as 'neutral' for one another in the phase order of the phase sequence. The neutral is generated as at the secondary winding of transformer that is STAR CONNECTED. The principle is that the sine wave angle is divided by 3(3phase) because the coil is being energized 3 times in a cycle. 360/3=120. Sin120= 0.866. 415v/(0.866x2)=240v

That is how a phase voltage is 240 between any line and a neutral but a line-to-line voltage is 415 which doesn't need a neutral.

My conclusion is that energy can never be created nor destroyed but can only be transformed from one form to another. There are renewable energy which available eg solar generated by the sun, torque by water flow or wind etc.
I hope this helps someone.

Its 6 reason not 26 @moderator please change this topic on homepage

chemystery:
Thanks for the comment bro.
Yes, you are right. 4017 requires additional AND gate to cascade but you can tweak it in your software program. For example if i want to use three 4017, i will have to tap from 3 different pins of my uC to serve as individual clock source, then i can take care of the cascading myself from the program.
I actually started with 4017. I have studied the shift register (74HC595) in the past to design a LED matrix display but at the end i still find my 4017 easier & handy for me (Maybe cos i started with it).
I noticed that with 4017, i am only concerned with my clock pulses, while with 74HC595, from what i studied, ii will have to be concerned about Clock and data shifting (enlighten me if i'm wrong).
But one advantage of 4017 is that it is readily available in the market.

You are right, there are many ways to arrive at the answer and if 4017 is d way easy for you, it is ok. My own past experience when wanting to design 128 colomn tells me that 4017 is not feasible because according to what you said, if you tap each clock from the uC you will need more IO port.

Apart from the problem that 74hc595 is not available (but available in lagos), 74hc595 is d best. The data shifting might be complex but you can write the program once and for all. So when adding more coloms u dont need any additional pin from the uC.

At the end of your tutorial i will post my circuit simulation, and software written with PIC C using CCS compiler if you will permit me.

Good work bro, but why are u using 4017 it is only good for just 10 columns. If we need more than that we have to cascade the 4017 which u and i know thats its not easy to do.

I dont mean to disrupt your tutorial but i think using shift register will be easier than a decade counter. Shift register like 74hc164, 4094, 74hc595 etc

darediamond:


Thank you for bothering to reply.
You see, I wanna build an High Voltage (1kv and above) High Frequency Lenzless Generator. But I want to make it power supply all in one. So instead of using Capacitor and Diode voltage Multiplier circuit and MY Self-made timing Copper Commutator, I taught of using an High Voltage High frequency Inverter. You know inverter do have Diver Unit that do houses the Integrated Circuit amongst other things. So I just need to use a Pure Sine Wave Generator IC but I want one that can generate upto 1Gh or even more. But I will just use Variable Resistor to control the Frequency from the IC. As for the High Voltage, I will have to wind a new transformer to convert 12 or 24 to upward of 1kv(1000vac) which I can rectified half way for other purposes.

Are you on Whatapp?
07060578569 let's meet there.

1Gh is not easy to generate oga. I stand to be corrected, no microcontroller can achieve that, even raspberry pi that is very close to a full computer system is 700mhz. Except fpga sha...

Apart from the oscillator, the transistor or mosfet that will drive the transformer can it really work that high frequency?

I am not saying it isn't possible but its not gonna be easy.

Call Tunde tunasha 0813 775 5683 he is a guru in embedded Systems. I endorse him. He is one of my ogas in embedded Systems.

zubione:
Just with your SIM Card and Phone, Shield your property from robbery, break-ins, flame, surge and that's just the beginning. http://gsmalarmsystemawuf..com.ng/

Oga, don't use this to draw traffic to your site cheaply. Give us at least little details here and then u can refer us to your site for more info

Ik at shop A7 08037130364

Yea, 080-333-13718

Jamzig1:
Do you know anywhere in Lagos where I can enrol for training on embedded systems...starting with C and assembly language programming, microcontrollers, schematic, simulation and PCB designing softwares and electronic circuits

You can get some embedded guru to take you a one on one training. I do one on one training and i know gurus like princejude, arcontree, 9free, guassian, sportsmaster etc (forgive me if i dont mention u) will be doing that also.

But like sportsmaster said, start from somewhere. Google is there, youtube videos is there to teach you, and whatever questions u have u can ask us here. Its so easy to learn it yourself. 5 years ago when i started, i dont have someone to tell me this and i had to learn from someone that doesnt even know it; the person always get code from his own oga also. It was almost like a waste of money. But one of the things i gained was that my interest in embedded system was aroused. It was my own personal development and God on my side that take me to where i am today.

So even if you learn from someone, you still have to go online for some research and more knowledge because a man can teach you only 30% of what he knows, not that he intentionally wanna hide things from you but there is no way he himself can remember everything he knows at a time, it will take challenges in field work fir him to remember what he knows in a particular area.

My conclusion is that you develop yourself personally and take someone that is ahead as your mentor, you will go far with that.

temizeee:
please house i really need to learn how to make pcb are locally made from my Google search i discovered ferric solution/hydrogen peroxide are used in making them....please where do they sell these chemical in local shops or does it have anyother name? tanx house

I dont think they sell the solution at local shops. And even if you see, they might be concentrated which yoi probably wont know how to dilute it. Its better you get from a shop that specializes on electronics and pcb materials and not to find out a chemical shop.

You can get them in lagos at oshodi but if you are outside lagos, the guy selling it can still transport it to you using the 18seater bus or whatever. If you are interested i can give u the number of the guy that sells. He didnt pay me for advert so i wont post his number here. Contact me on Savotechng@gmail.com and i will link you to him for free. No hidden charge...

But remember toake pcb u will need hand drilling machine also.

Aicnien, are you a laser specialist? I check all you post on nairaland and its talking about laser and the likes.

Please can you introduce yourself to the house. Are you selling the laser or Do you know where these laser are being sold in nigeria. The review is quite breathtaking

Electronzeez:
@Gaussian the good work you have done here is of no limit .The very first time I am seeing someone with knowledge who is virtually ready to share it at no cost .

I will simply want you to refer me to any e book or link that teaches strictly embedded system coding. I am currently brushing through my c++ note,many distraction has kept me away from finishing with my c class . Is there any e book that discuss c embedded coding alone ? BecAuse knowing how to write in c is one , being able to apply it to embedded system is another.
Thanks .

There is a whole lots of ebooks on embedded Systems programming online. There are some that talks about programming generally and some will emphasise on a particular microcontroller using a particular compiler. So when you are reading, have that in mind. You can go to www.pdfsearchengine.org then type embedded Systems programming in C, or microcontroller programming using C, etc. It will bring thousands of pdf books and writeupswhich u can download

sportsmaster:


I cant come to Ibadan nah.


I school in Lagos.


UNILAG to be precise.

Ok

sportsmaster:


Savotech you self dey use Oga IK shop,that guy na correct Guy.
He get almost everything.

In another news,
if i want to learn How to make all forms of scrolling texts Led display from you.

How much and how long does it take?.
And beside where is the location of your workshop.?

I am currently at ibadan. I have been away from my workshop in lagos for a while now and will return fully probably next year. But if u can come to ibadan sha, no probs. As to the price and lenght lets see in camera. Savotechng@gmail.com send me a mail.

mexzony:

Thank yo so much.
As a matter of fact as at when I was typing I have already studied the pcb wizard 3.5 software and I have to say it's so easy to use and I have already designed small circuit with their PCB layout.
Did not think it would be this easy. Loving the software.
I have Proteus 8.1 full cracked version but Ares is somewhat complicated.
PCB wizard rocks..
One more thing.
which do you guys prefer auto routing or manual routing?

You got the picture... Proteus ares is for professional design. I have been using pcb wizard 4.0 for years now and it has been serving me. Though it has limited component but so far i know the distance between the legs of the components, i can easily create a manual footprint for any component.

Auto routing will limit u in a lot of ways. U will still need a lot of work in placing the components where u want them to be and it might also give u a lot of jumpers than expected. It might use a thin line where u want a thick line. But all the same for specific purposes autorouting is good. Eg i used it when i want to do pcb for a 4x4 matrix keypad. I drew the keypad using the circuit designer or livewire and i imported it to pcb wizard and so on.

mexzony:

ah chairman calm down as a matter of fact i have googles it as am typing and reading it.
Just wanted to hear from our guys who use local stuff.
Thanks

Sorry for that, to manufacture it locally, you need to get a raw pcb, a mirrored or glossy paper to print the pcb design using laserjet, a design software like pcb wizard, a laminator or iron, an etchant, but to see a good demonstration type pcb making on youtube.

You will buy a small buthane gas refill like 1k or less.

I major in Electrical/electronics/computer/embedded programming/Mechatronics

seunot:
@ Teempakguy

Then let them be bro, its not ur money or time they're wasting; its all on them. And if they eventually suceed, it'll be to everyone benefit.

However, because mr. A or country A did not suceed doesn't mean Mr.Z or country Z won't.

Please let's keep our mind open; its the unique attribute of every great achiever!

Yea, we will let them be but we cant open our eyes and see them confuse people especially those that are not in field of technology. They should do their research and get a good result before posting it online.
Though everyone has a right to post online without any restrictions, but a good inventor wont post a half-done job online. He should finish his job and probably patent it before posting it here because someone like me might just get the idea and overtake him... Lol....

seunot:


I usually laugh when I read or hear people say these: "scientific laws cannot be broken", "this cannot be done", "that is impossible". It leads me to ask the most important question "Does the world has all knowledge of the past, the present and the future?"! How then can anyone no matter his level of knowledge, intelligence and wisdom say this cannot be done. It puzzles me when scientifically enlightened peeps can become trapped with the word 'impossible', they usually forget at such time that if everyone were like them our world will be different in a negative way; no inventors, doctors, engineers, physicists etc.

Well I'll say this to all dreamers, go after ur dreams, if you don't succed at first, change ur methods and strategies and keep repeating these 2 steps till you attain ur goals. Never give up especially if ur dream will benefit humanity!

Peace

Hmm... I agree with you that nothing is impossible, but some laws can be broken and some cannot. Law of conservation of energy cannot be broken. Even simple human reasoning will tell you that u cannot get something out of nothing. Do you think faraday or any other ouldn't have discovered how to generate electricity from nothing.
I will agree fuelless generator is possible only if that person can prove law of conservation of energy wrong. Case closed.

I dont know if electronics gurus out there has seen or used this useful tool. Its a gas powered soldering iron and gas torch. I ordered it from aliexpress about $9.00 and it has been very useful to me. I dont need to burn my fuel all because i want to solder, i can do any maintenance job on site that involves soldering without looking to for power or find an extension box.
The wattage of the soldering iron can be varied with the gas burning volume knob.
You can solder electrostatic sensitive board without having to check that your soldering iron doesn't have leakage current and You can solder conviniently. I dont know if its been sold at oshodi or alaba but i just thought of sharing this with the house, because untill early this year i never thought something like this exist.

Yea, IK is my guy at oshodi shop A7 08037130364 he has most embedded systems components

aetel1:
there is no way to produce energy to recharge. you are braking a law of energy conservation. No machine can be created perpetually. For instance, remember the energy you are producing from the DC generator, some will be converted to heat and noise and so you cannot return that exact energy back into the batteries. In the long run the DC generator will die due to lack of enough energy from the batteries as a lot will be lost as heat.

True talk

I am ready to help, so what do u need exactly. Circuit diagram, programming? Do you know how to construct? How available is electronics component over there? Is the moving message editable or not? If editable what medium. IR remote, RF remote, keypad, computer keyboard, bluetooth, wifi, gsm text message?

You can contact me via whatsapp 07065304131 I specialise in moving message display of all kinds and sizes. And build customized advert display.

JavaPrince1:

Thanks bro.
Exactly what I am looking for is how to know what I am doing on the code level so that I can focus on algorithm dedigns of firmwares.
I am just seing some powers of C/C++ over java in terms of hardware level control.
I want to be embedded with passion.

Practice makes u perfect

princejude:
goto is not a good C language function. It is not recommended, instead use while(1) endless loop.

Well, i really dont know why he used got i stead of while. I believe when he comes online he will explain himself.

But that goto is not a good C language function is what i cannot agree with u cos i use it a lot too.
When i am working on a function that calls another function recursively, of course the compiler will give u recursion error so i use goto statement to control the program flow.

Using CCS compiler, do u know that the compiler give a warning whenever u use while(1)? Not that it is wrong to use it but reminds u that u r using a constant as the arguement instead of a variable. That means that the main purpose of a while loop is not for a constant to be passed in as arguement but a variable, but we can always trick the compiler to pass in a constant which is an unchanging variable.

So i dont think using a goto function is is a bad programmimg practice if u really know what u r doing.