esp01 software serial
Posted: Sun Mar 13, 2016 12:55 pmHi everyone,
I'm trying to get serial data from an external device with my ESP8266 and forward it to an arduino.
I am using an ESP8266 version 01 with arduino IDE.
Programming and communicatiing with the arduino through TX and RX is OK.
However, I could not manage to use GPIO2 using softwareserial (https://github.com/plerup/espsoftwareserial)
Did anyone here has ever used softwareserial with an ESP8266 v01 ? which pin do you address in your code ?
I'm trying to get serial data from an external device with my ESP8266 and forward it to an arduino.
I am using an ESP8266 version 01 with arduino IDE.
Programming and communicatiing with the arduino through TX and RX is OK.
However, I could not manage to use GPIO2 using softwareserial (https://github.com/plerup/espsoftwareserial)
Did anyone here has ever used softwareserial with an ESP8266 v01 ? which pin do you address in your code ?
Code: Select all
SoftwareSerial esp8266(3,4); // I tried 2,3 before.
#define startFrame 0x02
#define endFrame 0x03
void setup() {
// put your setup code here, to run once:
Serial.begin(1200);
esp8266.begin(1200);
Serial.println("Setup complete");
}
void loop()
{
Serial.println("START READING");
// Variable to stock received chars
char charIn = 0;
// loop waiting start frame
while (charIn != startFrame)
{
charIn = esp8266.read() & 0x7F;
Serial.print("read char : ");
Serial.println(charIn);
}
// Loop to write the interesting frame
while (charIn != endFrame)
{
// if char available, follow
if (esp8266.available() >0 )
{
// forgetting 8th bit
charIn = esp8266.read()& 0x7F;
Serial.print(charIn);
}
}
// CR at the end of the frame
Serial.println("");
}