Acorntree's Posts
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Which programming language are you good in for embedded system. You can also link this thread to https://www.nairaland.com/1988764/electronics-circuit-design-concept-implementation/ for hardware design |
NiceMan4:Rather I thought it is the general political apathy prevalent mostly amongst the african middle class. As rightly point out, the government has been a huge let down. Whose fault is it? Stop and ask yourself that. Its your fault, its my fault, its our fault. The greatest democratic power necessary for good governance to take place lies with the voters. The day we will vote objectively, that’s the day when things will start shifting in the right direction. If we can make this resolve, bad leaders are much easier to deal with. Another problem is mental lazyness as I thought was with those who are educated. Unfortunately we’ve all been wrongly told to work hard, earn a good salary and escape poverty. And once one gets academic qualifications, we just sit back. Most of us do what we do to earn a salary, period. Not because we are driven by higher ideals, like being of service to humanity for doctors for instance, I could go on, but i know you get the gist. This too is apathy, laziness. do you know that the bulk of african intellectuals are sitting in multinational corporations and multilateral organisations and are simply just other walters? |
hahn:What can we do ? Major problem is from the government. |
You Lazy (Intellectual) African Scum! So I got this in my email this morning… They call the Third World the lazy man’s purview; the sluggishly slothful and languorous prefecture. In this realm people are sleepy, dreamy, torpid, lethargic, and therefore indigent—totally penniless, needy, destitute, poverty-stricken, disfavored, and impoverished. In this demesne, as they call it, there are hardly any discoveries, inventions, and innovations. Africa is the trailblazer. Some still call it “the dark continent” for the light that flickers under the tunnel is not that of hope, but an approaching train. And because countless keep waiting in the way of the train, millions die and many more remain decapitated by the day. “It’s amazing how you all sit there and watch yourselves die,” the man next to me said. “Get up and do something about it.” Brawny, fully bald-headed, with intense, steely eyes, he was as cold as they come. When I first discovered I was going to spend my New Year’s Eve next to him on a non-stop JetBlue flight from Los Angeles to Boston I was angst-ridden. I associate marble-shaven Caucasians with iconoclastic skin-heads, most of who are racist. “My name is Walter,” he extended his hand as soon as I settled in my seat. I told him mine with a precautious smile. “Where are you from?” he asked. “Zambia.” “Zambia!” he exclaimed, “Kaunda’s country.” “Yes,” I said, “Now Sata’s.” “But of course,” he responded. “You just elected King Cobra as your president.” My face lit up at the mention of Sata’s moniker. Walter smiled, and in those cold eyes I saw an amenable fellow, one of those American highbrows who shuttle between Africa and the U.S. “I spent three years in Zambia in the 1980s,” he continued. “I wined and dined with Luke Mwananshiku, Willa Mungomba, Dr. Siteke Mwale, and many other highly intelligent Zambians.” He lowered his voice. “I was part of the IMF group that came to rip you guys off.” He smirked. “Your government put me in a million dollar mansion overlooking a shanty called Kalingalinga. From my patio I saw it all—the rich and the poor, the ailing, the dead, and the healthy.” “Are you still with the IMF?” I asked. “I have since moved to yet another group with similar intentions. In the next few months my colleagues and I will be in Lusaka to hypnotize the cobra. I work for the broker that has acquired a chunk of your debt. Your government owes not the World Bank, but us millions of dollars. We’ll be in Lusaka to offer your president a couple of millions and fly back with a check twenty times greater.” “No, you won’t,” I said. “King Cobra is incorruptible. He is …” He was laughing. “Says who? Give me an African president, just one, who has not fallen for the carrot and stick.” Quett Masire’s name popped up. “Oh, him, well, we never got to him because he turned down the IMF and the World Bank. It was perhaps the smartest thing for him to do.” At midnight we were airborne. The captain wished us a happy 2012 and urged us to watch the fireworks across Los Angeles. “Isn’t that beautiful,” Walter said looking down. From my middle seat, I took a glance and nodded admirably. “That’s white man’s country,” he said. “We came here on Mayflower and turned Indian land into a paradise and now the most powerful nation on earth. We discovered the bulb, and built this aircraft to fly us to pleasure resorts like Lake Zambia.” I grinned. “There is no Lake Zambia.” He curled his lips into a smug smile. “That’s what we call your country. You guys are as stagnant as the water in the lake. We come in with our large boats and fish your minerals and your wildlife and leave morsels—crumbs. That’s your staple food, crumbs. That corn-meal you eat, that’s crumbs, the small Tilapia fish you call Kapenta is crumbs. We the Bwanas (whites) take the cat fish. I am the Bwana and you are the Muntu. I get what I want and you get what you deserve, crumbs. That’s what lazy people get—Zambians, Africans, the entire Third World. The smile vanished from my face. “I see you are getting pissed off,” Walter said and lowered his voice. “You are thinking this Bwana is a racist. That’s how most Zambians respond when I tell them the truth. They go ballistic. Okay. Let’s for a moment put our skin pigmentations, this black and white crap, aside. Tell me, my friend, what is the difference between you and me?” “There’s no difference.” “Absolutely none,” he exclaimed. “Scientists in the Human Genome Project have proved that. It took them thirteen years to determine the complete sequence of the three billion DNA subunits. After they were all done it was clear that 99.9% nucleotide bases were exactly the same in you and me. We are the same people. All white, Asian, Latino, and black people on this aircraft are the same.” I gladly nodded. “And yet I feel superior,” he smiled fatalistically. “Every white person on this plane feels superior to a black person. The white guy who picks up garbage, the homeless white trash on drugs, feels superior to you no matter his status or education. I can pick up a nincompoop from the New York streets, clean him up, and take him to Lusaka and you all be crowding around him chanting muzungu, muzungu and yet he’s a riffraff. Tell me why my angry friend.” For a moment I was wordless. “Please don’t blame it on slavery like the African Americans do, or colonialism, or some psychological impact or some kind of stigmatization. And don’t give me the brainwash poppycock. Give me a better answer.” I was thinking. He continued. “Excuse what I am about to say. Please do not take offense.” I felt a slap of blood rush to my head and prepared for the worst. “You my friend flying with me and all your kind are lazy,” he said. “When you rest your head on the pillow you don’t dream big. You and other so-called African intellectuals are damn lazy, each one of you. It is you, and not those poor starving people, who is the reason Africa is in such a deplorable state.” “That’s not a nice thing to say,” I protested. He was implacable. “Oh yes it is and I will say it again, you are lazy. Poor and uneducated Africans are the most hardworking people on earth. I saw them in the Lusaka markets and on the street selling merchandise. I saw them in villages toiling away. I saw women on Kafue Road crushing stones for sell and I wept. I said to myself where are the Zambian intellectuals? Are the Zambian engineers so imperceptive they cannot invent a simple stone crusher, or a simple water filter to purify well water for those poor villagers? Are you telling me that after thirty-seven years of independence your university school of engineering has not produced a scientist or an engineer who can make simple small machines for mass use? What is the school there for?” I held my breath. “Do you know where I found your intellectuals? They were in bars quaffing. They were at the Lusaka Golf Club, Lusaka Central Club, Lusaka Playhouse, and Lusaka Flying Club. I saw with my own eyes a bunch of alcoholic graduates. Zambian intellectuals work from eight to five and spend the evening drinking. We don’t. We reserve the evening for brainstorming.” He looked me in the eye. “And you flying to Boston and all of you Zambians in the Diaspora are just as lazy and apathetic to your country. You don’t care about your country and yet your very own parents, brothers and sisters are in Mtendere, Chawama, and in villages, all of them living in squalor. Many have died or are dying of neglect by you. They are dying of AIDS because you cannot come up with your own cure. You are here calling yourselves graduates, researchers and scientists and are fast at articulating your credentials once asked—oh, I have a PhD in this and that—PhD my foot!” I was deflated. “Wake up you all!” he exclaimed, attracting the attention of nearby passengers. “You should be busy lifting ideas, formulae, recipes, and diagrams from American manufacturing factories and sending them to your own factories. All those research findings and dissertation papers you compile should be your country’s treasure. Why do you think the Asians are a force to reckon with? They stole our ideas and turned them into their own. Look at Japan, China, India, just look at them.” He paused. “The Bwana has spoken,” he said and grinned. “As long as you are dependent on my plane, I shall feel superior and you my friend shall remain inferior, how about that? The Chinese, Japanese, Indians, even Latinos are a notch better. You Africans are at the bottom of the totem pole.” He tempered his voice. “Get over this white skin syndrome and begin to feel confident. Become innovative and make your own stuff for god’s sake.” At 8 a.m. the plane touched down at Boston’s Logan International Airport. Walter reached for my hand. “I know I was too strong, but I don’t give it a damn. I have been to Zambia and have seen too much poverty.” He pulled out a piece of paper and scribbled something. “Here, read this. It was written by a friend.” He had written only the title: “Lords of Poverty.” Thunderstruck, I had a sinking feeling. I watched Walter walk through the airport doors to a waiting car. He had left a huge dust devil twirling in my mind, stirring up sad memories of home. I could see Zambia’s literati—the cognoscente, intelligentsia, academics, highbrows, and scholars in the places he had mentioned guzzling and talking irrelevancies. I remembered some who have since passed—how they got the highest grades in mathematics and the sciences and attained the highest education on the planet. They had been to Harvard, Oxford, Yale, Massachusetts Institute of Technology (MIT), only to leave us with not a single invention or discovery. I knew some by name and drunk with them at the Lusaka Playhouse and Central Sports. Walter is right. It is true that since independence we have failed to nurture creativity and collective orientations. We as a nation lack a workhorse mentality and behave like 13 million civil servants dependent on a government pay cheque. We believe that development is generated 8-to-5 behind a desk wearing a tie with our degrees hanging on the wall. Such a working environment does not offer the opportunity for fellowship, the excitement of competition, and the spectacle of innovative rituals. But the intelligentsia is not solely, or even mainly, to blame. The larger failure is due to political circumstances over which they have had little control. The past governments failed to create an environment of possibility that fosters camaraderie, rewards innovative ideas and encourages resilience. KK, Chiluba, Mwanawasa, and Banda embraced orthodox ideas and therefore failed to offer many opportunities for drawing outside the line. I believe King Cobra’s reset has been cast in the same faculties as those of his predecessors. If today I told him that we can build our own car, he would throw me out. “Naupena? Fuma apa.” (Are you mad? Get out of here) Knowing well that King Cobra will not embody innovation at Walter’s level let’s begin to look for a technologically active-positive leader who can succeed him after a term or two. That way we can make our own stone crushers, water filters, water pumps, razor blades, and harvesters. Let’s dream big and make tractors, cars, and planes, or, like Walter said, forever remain inferior. A fundamental transformation of our country from what is essentially non-innovative to a strategic superior African country requires a bold risk-taking educated leader with a triumphalist attitude and we have one in YOU. Don’t be highly strung and feel insulted by Walter. Take a moment and think about our country. Our journey from 1964 has been marked by tears. It has been an emotionally overwhelming experience. Each one of us has lost a loved one to poverty, hunger, and disease. The number of graves is catching up with the population. It’s time to change our political culture. It’s time for Zambian intellectuals to cultivate an active-positive progressive movement that will change our lives forever. Don’t be afraid or dispirited, rise to the challenge and salvage the remaining few of your beloved ones. Field Ruwe is a US-based Zambian media practitioner and author. He is a PhD candidate with a B.A. in Mass Communication and Journalism, and an M.A. in History.
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use bb to change the file extension. just change it to filename.jpg |
laykhorn:I have never heard about rom interface to seven segment display. do you mean interfacing seven segment to a microcontroller. ROM IC can never drive a seven segment display without micro, rom is just a memory. Try to reframe your topic |
When is FUTA post graduate form will be out |
dealslip:words of wisdom , enough for the wise. |
vonskyes:try 200 g per liter of water or use trial and error with small sample |
vonskyes:Try Oshodi in lagos shop A7 oshodi main market or order through aliexpress |
tolugar:Major cause is overinflated tyres. Check each of the tyre pressure |
princejude:I will go with the last 2 price. Can u consider those who just want to build a prototype of there own design. Those that need only 1 piece. |
baba11:Ok |
bushdoc9919:Too much theories. Nigerian educationist focus too on theory at the expense of practicals. Lecturers and teachers teach theories as if ones life depends on that alone. If we are really serious with the future of our children, there is need for overhauling of our educational system. If not that's how it will remain. |
baba11:Of all these means of generating electricity only the solar technology is efficient and reliable. Note: because of the high cost of procuring solar panels + inverter + batteries+others assesories, you can only use it as a backup. So one still need a stable means of electricity which only the government can provide. Such kind of power generation can only be achieved through building dams, nuclear power technology, gas power, or any other system using a replaceable source of energy which can easily be replenished. And these technology are beyond individual. A kilowatt of electricity is costly to generate. What we pay to NEPA is subsidized. Individual power generation either through solar or any other technology is not the best solution to power problem. Bulk generation is the only workable solution just like mass production. It will be cheaper in the long run, and easy to maintain. A company generate electricity from solar farm (in kw) then distributes to individual. |
Marvin67:Nigeria is really in trouble |
baba11:Go to 4shared.com and search for these software. You can use ucbrowser to download if ure using android |
@emahnwell. This is a working pic programmer .programmer software is icprog or winpic. It can burn into almost all pic micro. But require serial port of laptop or desktop. http://www.circuitvalley.com/2011/05/microchip-pic-serial-port-programmer.html?m=1
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Seun:Thanks for your urgent response. Always carry nairalanders along in what ever you are doing. We are one big family |
Luckygurl:The source code is for pic16f84. You can modify the code to work with any other pic microcontroller if u can learn assembly language |
SOURCE CODE Assembly language using MPLAB You can modify the code to suite your need like incorporating alarm timing etc PROCESSOR PIC16F84A INCLUDE <P16F84A.INC> RADIX HEX ORG 0000h GOTO MAIN ORG 0004h GOTO ISR ;************************************************************* ; 12 HOUR DIGITAL CLOCK PROGRAM ; www. electronicecircuits.com ;*************************************************************** CBLOCK 0Ch S1 S10 M1 M10 H1 H10 DEL DEL0 DEL01 DEL02 WHAT QSTAT ENDC #DEFINE DP PORTB,0 ; PIN NO 06 DECIMA POINT DELAY01 DECFSZ DEL,1 GOTO $-.1 CLRF PORTB RETURN DELAY02 MOVLW .2 MOVWF DEL01 DECFSZ DEL01,1 GOTO $-.1 RETURN ; SEVEN SEGMENT DISPLAY CONNECTING TABLE TABLE ADDWF PCL,1; hgfedcba segments RETLW B'01111110' ;0 ; RETLW B'00001100' ;1 RETLW B'10110110' ;2 RETLW B'10011110' ;3 RETLW B'11001100' ;4 RETLW B'11011010' ;5 RETLW B'11111010' ;6 RETLW B'00001110' ;7 RETLW B'11111110' ;8 RETLW B'11011110' ;9 SCAN MOVLW B'00000001' ;SEGMENT 01 MOVWF PORTA MOVF M1,0 CALL TABLE MOVWF PORTB CALL DELAY01 MOVLW B'00000010' ;SEGMENT 02 MOVWF PORTA MOVF M10,0 CALL TABLE MOVWF PORTB CALL DELAY01 MOVLW B'00000100' ;SEGMENT 03 MOVWF PORTA MOVF H1,0 CALL TABLE MOVWF PORTB CALL DELAY01 MOVLW B'00001000' ;SEGMENT 04 MOVWF PORTA MOVF H10,0 CALL TABLE MOVWF PORTB CALL DELAY01 RETURN INCR INCF S1,1 MOVF S1,0 BCF STATUS,Z XORLW .10 BTFSS STATUS,Z RETURN CLRF S1 INCF S10,1 MOVF S10,0 BCF STATUS,Z XORLW .6 BTFSS STATUS,Z RETURN CLRF S10 INCR_SM INCF M1,1 MOVF M1,0 BCF STATUS,Z XORLW .10 BTFSS STATUS,Z RETURN CLRF M1 INCF M10,1 MOVF M10,0 BCF STATUS,Z XORLW .6 BTFSS STATUS,Z RETURN CLRF M10 INCR_SH INCF H1 SWAPF H10,0 ADDWF H1,0 BCF STATUS,Z XORLW 13h BTFSS STATUS,Z GOTO $+6 CLRF H1 CLRF H10 MOVLW .1 MOVWF H1 RETURN MOVF H1,0 BCF STATUS,Z XORLW .10 BTFSS STATUS,Z RETURN CLRF H1 INCF H10,1 RETURN ISR BCF INTCON,GIE MOVWF WHAT SWAPF STATUS,0 MOVWF QSTAT BCF INTCON,T0IF MOVLW .5 MOVWF TMR0 INCF DEL0,1 MOVF DEL0,0 ANDLW B'01111111' BCF STATUS,Z XORLW .125 BTFSS STATUS,Z GOTO LABLE BTFSS DEL0,7 GOTO $+.5 CLRF DEL0 CALL INCR GOTO LABLE GOTO LABLE BTFSS DEL0,7 GOTO $+.5 CLRF DEL0 BCF DP ; DECIMAL POINT CALL INCR GOTO LABLE MOVLW .200 ; DECIMAL POINT DELAY SETTING MOVWF DEL0 ;DECIMAL POINT BSF DP LABLE SWAPF QSTAT,0 MOVWF STATUS SWAPF WHAT,1 SWAPF WHAT,0 BSF INTCON,GIE RETFIE KEY BSF OPTION_REG,7 BCF INTCON,GIE BSF STATUS,RP0 MOVLW B'11101111' MOVWF TRISB BCF STATUS,RP0 MOVLW B'00000000' MOVWF PORTB CALL DELAY02 ; ********************************** SM1 BTFSC PORTB,1 ; SET MINITUS GOTO SH1 CALL INCR_SM GOTO KEYX ;*********************************** ;*********************************** SH1 CALL DELAY02 BTFSC PORTB,2 ; SET HOUR GOTO KEYDE CALL INCR_SH ;*********************************** KEYX BSF STATUS,RP0 CLRF TRISB BCF STATUS,RP0 MOVLW .100 MOVWF DEL02 CALL SCAN DECFSZ DEL02,1 GOTO $-.2 BSF INTCON,GIE BCF OPTION_REG,7 RETURN KEYDE BSF STATUS,RP0 CLRF TRISB BCF STATUS,RP0 BSF INTCON,GIE BCF OPTION_REG,7 RETURN MAIN CLRF S1 CLRF S10 CLRF M1 CLRF M10 CLRF H1 CLRF H10 CLRF DEL CLRF DEL0 CLRF DEL01 CLRF DEL02 CLRF WHAT CLRF QSTAT BSF STATUS,RP0 CLRF TRISB CLRF TRISA MOVLW B'00000011' MOVWF OPTION_REG BSF INTCON,T0IE BSF INTCON,GIE BCF STATUS,RP0 CALL SCAN CALL KEY GOTO $-.2 ORG 2007h DATA 3FF1h END |
PIC16F84 12 or 24 Hour Digital Clock Circuit Diagram And Programming This PIC digital clock is based on a 16F84 microcontroller. it uses four 7-segment displays.The software in the microcontroller allows for very accurate timekeeping . PARTS LIST R1 – R8 100Ω R9 10kΩ R10 R13 10kΩ C1 22pF C2 22pF D1 LED U1 – U4 Common Cathode 7 Segment Display Q1 – Q4 C828 Xtal1 4 MHz Crystal IC1 7805 Regulator IC PIC1 PIC 16F84 OR PIC16F84A PB1 - PB3 Push to ON push button switch PB1 for set minutes. PB2 for set hours. PB3 for Reset. D1 LED indicate seconds. NOTE: this circuit was not designed by me. The program was written using assembly language. I only designed the PCB layout , burn the hex file into the pic mc and build the circuit. You can modify the circuit for display on large seven segment display.
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PROJECT FOR THE MONTH OF DECEMBER
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Liadi2:BBM 22EDDABF Whatsapp +2348057324968 |
Luckygurl:Your email? |
If not for the gullibility of most nigerians this so called man of GOD will not be making this type of statement. You've made them to be wealthy so they can now trample on your intelligence anyhow.its an insults on his church members. |
https://www.nairaland.com/1214892/microcontrollers. Go through this link if you want to learn programming aspect of electronics design |
princejude: |
@luckygurl start with this http://www.mikroe.com/products/view/11/book-pic-microcontrollers/ Or I can send pdf version of the ebook |
http://www.4shared.com/rar/XY8d467Lba/flowcode_pic__professional_520.html Working version 5 flowcode |
9free:You can create your own symbols and add to the library for pcb wizard. Search for tutorial on how to do that on the net |
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