Tyler Smith

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11 years, 11 months ago.

7 Segment LED and BusOut

Hello,

I am very new to mbeds and programming. My goal is to get it to display a number, wait, display a number, wait, and display a character (ex 7 wait 8 wait H). Here is my code that I have right now just to try and test it. I am stuck on how to make an H.

#include "mbed.h"

BusOut Seg1(p5,p6,p7,p8,p9,p10,p11,p12);

int main() {
    while(1) {
        Seg1=7;
        wait(0.2);
        Seg1=8;
        wait(0.2);
        Seg1= 
    }
}

After I get it to do this I would like to try and add in some type of calculation, ex 5+5=10, then have it display that answer using the display 1, wait, display 0. Any guidance is appreciated.

1 Answer

ceri clatworthy
11 years, 11 months ago.

you need to send a bit feild to the LED display, not a number ..

Assuming p5 .. 12 represents a.b.c.d.e.f.g dp,

then H would be 0x76,

note it is pure coincidecce that the numer 7 diaplays 7 on LED

b7, b6, b5, b4, b3, b2, b1 ,b0

dp, G F E D C B A

SO FOR 'E'

0111 1001 = 0x79

for 'H'

0111 0110 = 0x76

hpor this helps

Ceri