User manual

you put your hand next to the aerial or if the aerial is placed
near electrical devices. The result with different number series
can only be seen when you push the reset button on the Ar-
duino™-PCB and then have the numbers output. You can enter a
fixed number instead of analogRead() once to see that the same
number sequences will appear every time after the reset.
BAR CHART DISPLAY
Bar chart displays are often used in measuring technology. They
are also called bar displays. They display a visual/trend
measured value. When setting electronic circuits, a bar chart
display makes things much easier because the trend towards max.
or min. can be read more easily than in digital numeric value
displays. We know this display and progress bar in computer
programs as well, e.g. when installing a program. Here, the bar
shows how far the installation has already progressed. Gen-
erally, the bar chart display shown in the experiment is an
analogue display on a digital basis. Electromechanical bar chart
displays were already used in early electronics. Our bar chart
display, however, uses a modern LCD and a microcontroller.
In the simplest case, we would be able to display a full character
for each display step (5 x 8 dots). We can only implement a very
general display of 0 to 16 then. It would be nice if you could
use the individual five columns of every single character. Since
we can generate eight own characters, it is simple to program
a bar chart display with 5 x 16 = 80 characters/conditions.
The experiment requires the LCD basic writing that you set up
in the function test.
001 // Integrating LCD-Library
002 #include <LiquidCrystal.h>
003
004 // Specifying LCD pins
005 // RS, E, D4, D5, D6, D7
006 LiquidCrystal lcd(11, 10, 2, 3, 4, 5);
007
008 #define LCD_LENGHT 16.0
009
010 int value;
011 byte flag = 0;
012
013 byte MyChar0[8] = {