I'm doing a project on solar panel water pump.I need to use C programming to automatically activate the water pump battery from 6pm to 6am for a 4 digit 7-Segment LED.
Here are the codes from my previous project codes for Count Down Timer for AT89C5131 board. So how do I edit from it?
Personally, I'd use some kind of text editor.
See also: Homework policy, How to ask smart questions.
Quzah.
Hope is the first step on the road to disappointment.
Did you hope for new answers to the same question ?
btw..If you wrote the code in the file you attached, this shouldn't be much different !
Last edited by manasij7479; 07-21-2011 at 10:41 PM.
You know what's really helpful? Using the title "C Programming" on the C Programming board. I mean, that's really cluing people into what the thread is all about. If it weren't for your descriptive and most helpful title I might have thought this thread was about breeding camels in a temperate climate or how to bake cookies using only the EM from your monitor. My hat is off to you, good sir.
If you understand what you're doing, you're not learning anything.
Good question! Do you know how to bake cookies using the EM from a monitor? It sounds like something that you could find on the apple support site.Originally Posted by itsme86
Warning: Some or all of my posted code may be non-standard and as such should not be used and in no case looked at.
Thread title fixed (kinda)
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
> I need to use C programming to automatically activate the water pump battery from 6pm to 6am for a 4 digit 7-Segment LED.
In order to know when 6pm is, you need to know what time it is "now", in order to know when 6pm is actually 6pm.
The MCU you quote doesn't have a real time clock, so does the board you're supplied with have such a clock?
Mind you, the whole "solar" thing is a give-away.
Perhaps all you need to do is put one of these across a couple of I/O pins in order to determine that it is in fact just "dark" outside.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
I could have baked cookies with a light bulb, but I never had an Easy-Bake Oven!Thread title fixed (kinda)
Quzah.
Hope is the first step on the road to disappointment.
No, and I've been wondering. Which is why I opened this thread in the first place. You can imagine my disappointment when I discovered it was only about something as mundane as activating a water pump.Good question! Do you know how to bake cookies using the EM from a monitor? It sounds like something that you could find on the apple support site.
If you understand what you're doing, you're not learning anything.
Yeah well, someone's gotta put the fire out after you burn those cookies of yours...
I was wrong, turns out apple made sure you couldn't bake cookies with your macintosh.
Warning: Some or all of my posted code may be non-standard and as such should not be used and in no case looked at.
But judging from the canned answers, you can use it as a health care devise.I was wrong, turns out apple made sure you couldn't bake cookies with your macintosh.
I'm going to try and rub myself against an iPad...
@Salem, the board includes an optional RTC, which our OP friend should be more than aware of, if he indeed wrote that file he says he did:
Code:#include <REG51KJ.h> #define PB1 P33 #define PB2 P10 #define PB3 P12 #define secSet PB2 #define minSet PB1 #define startSet PB3
Originally Posted by brewbuck:
Reimplementing a large system in another language to get a 25% performance boost is nonsense. It would be cheaper to just get a computer which is 25% faster.
Actually for the original inquiry... I would follow an already suggested route of using a photocell on an analog input. It's smarter than a timer since it can also account for cloud cover, enormous forest fires, volcanic ash, eclipses, massive solar flares and blue moons.
"Once in a blue moon"... http://www.farmersalmanac.com/astron...s-a-blue-moon/
Last edited by CommonTater; 07-23-2011 at 05:29 PM. Reason: Found a better link...
Serious replies should go here -> solar pump switch
I split the "fun" part out
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
That is assuming 2 things will happen though. I will express this in a language we can all understand *cough*quzah*cough*
Code:if(opReturns && opShowsEffort) provideActualHelp();
Warning: Some or all of my posted code may be non-standard and as such should not be used and in no case looked at.
