Softwareserial.h Arduino Library Download -

void setup() Serial.begin(9600); // Debug console gps.begin(4800); ble.begin(9600);

SoftwareSerial gps(4, 5); SoftwareSerial ble(6, 7); void setup() gps.begin(9600); ble.begin(115200); // may be unreliable at this baud rate softwareserial.h arduino library download

If the sketch compiles without errors, the library is correctly installed. 6.1 Basic Initialization SoftwareSerial ss(RX_PIN, TX_PIN); ss.begin(baudRate); 6.2 Sending Data Use write() , print() , println() , write(uint8_t) , etc. void setup() Serial

| Library/Approach | Best for | |----------------|-----------| | HardwareSerial | Primary serial, high baud rates. | | NeoSWSerial | Reliable reception on two pins at up to 57600 baud. | | AltSoftSerial | High-performance, but uses fixed timer pins (8 & 9 on Uno). | | SerialPort (Mega) | Multiple hardware ports (Serial1, Serial2, Serial3). | | I2C/SPI to UART bridge (e.g., SC16IS750) | Add many hardware UARTs externally. | Problem: Read NMEA sentences from a GPS module (4800 baud) and transmit them over Bluetooth (9600 baud) to a smartphone. | | NeoSWSerial | Reliable reception on two

#include <SoftwareSerial.h> SoftwareSerial gps(4, 3); // RX, TX for GPS SoftwareSerial ble(6, 5); // RX, TX for Bluetooth

ss.print("GPS: "); ss.println(gpsData); if (ss.available()) char c = ss.read(); // process