: While it technically supports speeds up to 115,200 bps , communication becomes notoriously unstable at higher speeds. Most developers stick to 9,600 bps for maximum reliability.
: At very high baud rates (e.g., 115200), the library can become unreliable because the "reception latch timing" is not perfectly accurate. softwareserial.h library
#include // Define RX and TX pins (e.g., Pin 10 is RX, Pin 11 is TX) SoftwareSerial mySerial(10, 11); void setup() Serial.begin(9600); // Hardware serial for debugging mySerial.begin(9600); // Software serial for the external device Serial.println("SoftwareSerial initialized."); void loop() if (mySerial.available()) Serial.write(mySerial.read()); // Forward data from software serial to hardware serial Use code with caution. : While it technically supports speeds up to
: Reading NMEA data strings from GPS modules. #include // Define RX and TX pins (e
// Send a test pattern void testSoftwareSerialBaud(long baud) SoftwareSerial ss(10, 11); ss.begin(baud); ss.print("U"); delay(1000);
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