Thomas Cauwelier / Mbed 2 deprecated visible_light_communication

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   SoftSerial SDFileSystem mbed wave_player

main.cpp

Committer:
Thomas Cauwelier
Date:
2017-05-03
Revision:
10:071b7cc8b0ff
Parent:
9:d95984ce5de9
Child:
11:e462ce7a42b9

File content as of revision 10:071b7cc8b0ff:


#include "mbed.h"
#include "rtos.h"
#include "Manchester.h"

Serial out(p9, p10, 3200); //p9
Serial in(p13, p14, 3200); //p14

char *read_2_bytes(Serial *serial, char out[2]) {
    int i = 0;
    while (true) {
        while (!serial->readable());
        char c = (char) serial->getc();
        if (c == 0b11100011) //no data flag
            continue;
        else{
            out[i] = c;
            i++;
        }

        if (i == 2){
            break;
        }
    }
    return out;
}


void receive_uart() {
    while (true) {
        if (in.readable()) {
            char s[2];
            read_2_bytes(&in, s);
            char dec[1];
            Manchester::decode_manchester(s, 2, dec);

            printf(dec);
        } else {
            Thread::yield();
        }
    }
}

int main() {
    printf("%s\r\n", "hello, term!");

    Thread thread;
    thread.start(receive_uart);

    while (true) {
        while (!out.writeable());

        char tosend[28];
        Manchester::encode_manchester("hello, term\r\n", 14, tosend);
        out.printf(tosend);
        wait(1);
    }

}