I have two non constant char arrays. One is "buff" and other is "buffa". I get values in buffa via rf transmitter of other Arduino and I want to append those data to the data inside of buff. Then I will send all data to other Arduino. So I don't want to send two different char arrays. I want to send them all at once as just one array.
I TRIED SPRINTF BUT IT DOESNT WORK.
char buffa[144];
char buff[1000];
void loop() {
uint8_t buf[VW_MAX_MESSAGE_LEN];
uint8_t buflen = VW_MAX_MESSAGE_LEN;
sprintf(buff,"<status>\n");
if (vw_get_message(buf, &buflen)) { // check to see if anything has been received
int i;
for (i = 0; i < buflen; i++) {
buffa[i] = (char) buf[i]; // the received data is stored in buffer
}
}
distance1 = getDistance(initPin1, echoPin1);
sendData(3, distance1);
sprintf(buff, "%s", buffa);
delay(5000);
const char *msg0 = buff;
vw_send((uint8_t *)msg0, strlen(msg0)); // Send control character
vw_wait_tx();
Serial.print(msg0);
}
