Hello everybody,
Now i am able to communicate MSP430G2553 with ESP8266 and ESP8266 is giving response for AT commands.I am using software UART to communicate with ESP and hardware UART for debugging. So unfortunately it is printing garbage characters. I think it can be the problem of baud rate mismatch. ESP8266 default baud rate is 115200 and software UART is supports upto 9600. The code is as follows:
#include <SoftwareSerial.h>
SoftwareSerial esp8266(2,3); // make RX msp430g2553 line is pin 2, make TX msp430g2553 line is pin 3.
// This means that you need to connect the TX line from the esp to the msp430g2553's pin 2
// and the RX line from the esp to the msp430g2553's pin 3
void setup()
{
Serial.begin(9600);
esp8266.begin(115200); // your esp's baud rate might be different
}
void loop()
{
if(esp8266.available()) // check if the esp is sending a message
{
while(esp8266.available())
{
// The esp has data so display its output to the serial window
char c = esp8266.read(); // read the next character.
Serial.write(c);
}
}
if(Serial.available())
{
// the following delay is required because otherwise the msp430g2553 will read the first letter of the command but not the rest
// In other words without the delay if you use AT+RST, for example, the msp430g2553 will read the letter A send it, then read the rest and send it
// but we want to send everything at the same time.
delay(1000);
String command="";
while(Serial.available()) // read the command character by character
{
// read one character
command+=(char)Serial.read();
}
esp8266.println(command); // send the read character to the esp8266
}
}
So how can i use hardware UART to communicate with esp. Or how can i change baudrate of esp to 9600?
