Old School

01 import curses , time, random
02
03 # create a curses object
04 stdscr = curses.initscr()
05 height, width = stdscr.getmaxyx() # get the window size
06
07 # define two color pairs, 1- header/footer , 2 - dynamic text, 3 - background
08 curses.start_color()
09 curses.init_pair(1, curses.COLOR_RED, curses.COLOR_WHITE)
10 curses.init_pair(2, curses.COLOR_GREEN, curses.COLOR_BLACK)
11 curses.init_pair(3, curses.COLOR_WHITE, curses.COLOR_BLUE)
12
13 # Write a header and footer, first write colored strip, then write text
14 stdscr.bkgd(curses.color_pair(3))
15 stdscr.addstr(0, 0, " " * width,curses.color_pair(1) )
16 stdscr.addstr(height-1, 0, " " * (width - 1),curses.color_pair(1) )
17 stdscr.addstr(0, 0, " Curses Dynamic Text Example" ,curses.color_pair(1) )
18 stdscr.addstr(height-1, 0, " Key Commands : q - to quit " ,curses.color_pair(1) )
19 stdscr.addstr(3, 5, "RASPBERRY PI SIMULATED SENSOR VALUES" ,curses.A_BOLD )
20 stdscr.refresh()
21
22 # Cycle to update text. Enter a 'q' to quit
23 k = 0
24 stdscr.nodelay(1)
25 while (k != ord('q')):
26     # write 10 lines text with a label and then some random numbers
27     for i in range(1,11):
28         stdscr.addstr(4+ i, 5, "Sensor " + str(i) + " : " ,curses.A_BOLD )
29         stdscr.addstr(4+ i, 20, str(random.randint(10,99)) ,curses.color_pair(2) )
30     time.sleep(2)
31     k = stdscr.getch()
32
33 curses.endwin()

01 /* c1.c - Basic Curses Example */
02
03 #include <curses.h>
04 #include <stdlib.h>
05 #include <unistd.h>
06
07 int main(void)
08 {
09     int row, col, k;
10 // Create a curses object and define color pairs
11     initscr();
12     getmaxyx(stdscr,row,col);
13     start_color();
14     init_pair(1,COLOR_RED,COLOR_WHITE);
15     init_pair(2,COLOR_GREEN,COLOR_BLACK);
16     init_pair(3,COLOR_WHITE,COLOR_BLUE);
17     curs_set(0);
18     noecho();
19     nodelay(stdscr, TRUE);
20 // Write a header and footer, first write colored strip, then write text
21     bkgd(COLOR_PAIR(3));
22     attron(COLOR_PAIR(1));
23 // Create a top and bottom color strip
24     for (int i = 0; i < col; i++) {
25         mvaddstr(0, i, " ");
26         mvaddstr(row-1, i, " ");
27     }
28     mvaddstr(0, 0, " Curses C Dynamic Text Example");
29     mvaddstr(row-1, 0, " Key Commands: q - to quit");
30     attroff(COLOR_PAIR(1));
31     mvaddstr(2, 5,"RASPBERRY PI SIMULATED SENSOR VALUES" );
32     refresh();
33 // Cycle with new values every 2 seconds until a q key (133) is entered
34     while (k != 113)
35     {
36         attroff(COLOR_PAIR(2));
37         for (int i = 0; i < 10; i++) {
38             mvprintw((4+i), 5, " Sensor %d : ",i);
39         }
40         attron(COLOR_PAIR(2));
41         for (int i = 0; i < 10; i++) {
42             mvprintw((4+i), 20, "%d",rand() %100);
43         }
44         k = getch();
45         sleep(2);
46     }
47     endwin();
48     exit(0);
49 }

01 import curses, time
02 import pyfiglet, random
03
04 def get_io(): # Get a random value. Tweek later with real data
05     global value1
06     testvalue = str(random.randint(100,1000)/10) + " C"
07     value1 = pyfiglet.figlet_format(testvalue, font = "starwars" )
08
09 # Create a string of text based on the Figlet font object
10 title = pyfiglet.figlet_format("Raspi Data", font = "small" )
11
12 stdscr = curses.initscr() # create a curses object
13 # Create a couple of color definitions
14 curses.start_color()
15 curses.init_pair(1, curses.COLOR_YELLOW, curses.COLOR_BLACK)
16 curses.init_pair(2, curses.COLOR_GREEN, curses.COLOR_BLACK)
17
18 # Write the BIG TITLE text string
19 stdscr.addstr(1,0, title,curses.color_pair(1) )
20 stdscr.addstr(8,0, "Sensor 1: GPIO 7 Temperature Reading" ,curses.A_BOLD)
21
22 # Cycle getting new data, enter a 'q' to quit
23 stdscr.nodelay(1)
24 k = 0
25 while (k != ord('q')):
26     get_io() # get the data values
27     stdscr.addstr(10,0, value1,curses.color_pair(2) )
28     stdscr.refresh()
29     time.sleep(2)
30
31     k = stdscr.getch()
32
33 curses.endwin()