Unable to send UDP packet
Posted: Sat Nov 08, 2014 5:35 pmI seem to be having difficulties sending UDP packets. Here's a slightly simplified view of what I'm doing:
And here's what I get back:
Nothing ever arrives at the destination. I've tested the server with code running on other systems and it works fine, so I'm guessing something is going wrong with my ESP-8266. Any suggestions or clues?
Thanks!
Code: Select all
void setup() {
// reset WiFi module
wifi.println("AT+RST");
// 500ms delay followed by reading the result
wifi.println("AT+CWMODE=1");
// 500ms delay followed by reading the result
wifi.println("AT+CWJAP=\"accesspoint\",\"password\"");
// 500ms delay followed by reading the result
wifi.println("AT+CIPSTART=\"UDP\",\"10.0.1.100\",\"34807\"");
// 500ms delay followed by reading the result
}
void loop() {
int v;
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
rs232.print("Sending beacon: ");
char *data = "Beacon,10.0.1.57,8080";
int bytes = strlen(data);
wifi.print("AT+CIPSEND=");
wifi.println(bytes);
wifi.println(data);
wifi.println("AT+CIPCLOSE");
}
while(wifi.available() > 0) {
v = Serial.read();
if (v == 10) {
wb[wctr] = 0;
wctr = 0;
rs232.println(wb);
} else if (v == 13) {
// gndn
} else {
wb[wctr] = v;
wctr++;
}
}
}And here's what I get back:
Code: Select all
AT+CIPSEND=23
> MyBeacon,10.0.1.57,8080AT+CIPCLOSE
busy s...
busy s...
SEND OKNothing ever arrives at the destination. I've tested the server with code running on other systems and it works fine, so I'm guessing something is going wrong with my ESP-8266. Any suggestions or clues?
Thanks!