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8 years, 1 month ago. This question has been closed. Reason: Off Topic
Xbee Wifi to Mbed (putc) doesn't work?!
Hi everyone, I am trying to receive a signal from my android to the xbee wifi and from the xbee to my mbed. Then, if the signal is 1 I want to write the data from my mass storage to the xbee and back to the android phone. However, I can receive data on my mbed, but I cannot send the data back to the phone. It seems that putc does not work at all. But I am able to see the data on the terminal of my computer! Can someone please help me to see why I am not able to transmit any data through the rx port of mbed? I am about to give up after several days of debugging!!! :(
Here is my code for data transmission:
include the mbed library with this snippet
#include "mbed.h"
Serial xbee1(p13, p14);
DigitalOut rst1(p11);
if(xbee1.readable()) { //See if XBee is readable
wait(1);
myled2 = 1;
RChar = xbee1.getc();
}
if (RChar=='1') { //If phone sent a signal, read the csv file
csv_parser csv;
csv.reset_record_count();
csv_row row;
csv.set_field_term_char(',');
csv.init("/" FSNAME "/OPC.CSV");
//printf("\nCSV Initiated\n");
myled2 = 0; //Turn Led 2 Off
double TimeStamp;
myled3 = 1;
/*while(csv.has_more_rows()&&i<16) {
myled3 = 0;
row = csv.get_row();
i++;
}*/
while((csv.has_more_rows()== true) &&i<16) {
myled3 = 0;
row = csv.get_row();
i++;
}
if(xbee1.writeable()) {
while(csv.has_more_rows()== true) {
row = csv.get_row();
for (i=0; i<25; i++) {
if (i<16 || i>21) {
myled3 = 1;
//row[i].c_str();
//printf("\n %s\n", row[i]);
char *cstr = new char[row[i].length() + 1];
strcpy(cstr, row[i].c_str());
for(j = 0; j < row[i].size(); j++) {
//xbee1.putc('1');
xbee1.putc(cstr[j]); //XBee write whatever the Alphasense OPC-N2 is sending
//printf(" %c", cstr[j]);
wait(0.01);
}
xbee1.putc(',');
//printf(",");
myled3 = 0;
} else if (i==21) {
myled2 = 1;
/*char *cstr = new char[row[i].length() + 1];
strcpy(cstr, row[i].c_str());
TimeStamp = atof(cstr);
S= S + TimeStamp + 62.000;
time = ctime(&S);
strftime(buffer, 32, "%I:%M %p\n", localtime(&seconds));*/
//wait(1);
//for(j = 0; j < 33; j++) {
char *cstr = new char[row[i].length() + 1];
strcpy(cstr, row[i].c_str());
for(j = 0; j < row[i].size(); j++) {
xbee1.putc(cstr[j]); //XBee write whatever the Alphasense OPC-N2 is sending
//printf(" %c", cstr[j]);
wait(0.01);
}
//}
xbee1.putc(',');
//printf(",");
myled2 = 0;
}
}
//printf("\n");
//xbee1.putc('\n');
}
}
}