scanf take alot of program memory. I need to find an alternative to scanf. I need to read two numbers from seial port, add them and present the result.
As an example, I had the same problem with printf and at last found this code example:
void send_serial(unsigned char *s)
{while(*s != 0x0)...
I have a question regarding capacitors in general.
Theoretically a capacitor consists of two metal plates in parallell. In the ideal case where there is vaccum between the plates there should be infinite resistance between the two plate.
I am trying to make a capacitor with two aluminium foil...
Hi
I am looking for a large cooling fan from some large truck engine. It doesn't matter which model. The largest I have seen is around 16 inches in diameter, but I need something around 30-40 inches.
I need something like this:
http://www.arrowprop.com/comp.html
But these are very expensive...
THe reason I am doing it in C is simply because I want learn the language.
IRstuff :
"By what test did you determine that the header files were at fault?".
Tom: I eliminating the lines.
IRstuff :
"If they really are, there should be a means of linking only the functions you're actually...
I am trying to program an atmel AT89C2051. As you might know it has a capacity of 2K. Now the program itself is only a few lines. But when I compile it, a hex file is produced that is 3.2K. So I get an error message. The large file is because of to lines in the program:
#import<file1.h>...
Hi
Does anybody know about a calculator that Takes:
Number of blades,
Rotor diameter,
Blade chord,
Blade weight,
Aerodyn Pitch,
and claculate the profile drag of the propeller blade?
much like
http://www.icon.fi/~jtki/gyrocomp.html
avialable at...
Hi Greg,
Here is an example of the spec I get from the producer.
Specification
Nominal voltage 30 V
Operating voltage range 14.4 ... 36 V
No-load speed 6300
RPM / Volt 210
No. of winds 7
Current drain atmaximum efficiency* 25 50 A
Max. efficiency without gearbox 91%
Permissible motor...
Hello
The lift equation for airplane's wing is:
L=(1/2)*ro*S*CL*V^2
In the case of a rotating wing the mean lift of an untwisted rotor is in actual fact 1/3 the maximum lift at the tip because the lift profile is a parabolic curve.
Thus the lift of a fixed wing becomes modified to lift of...