Softwareserial.h Arduino Library Download 〈8K〉

| 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.

void setup() Serial.begin(9600); // Debug console gps.begin(4800); ble.begin(9600); softwareserial.h arduino library download

| Port | Pins | |------|------| | PCINT0 | 8 | | PCINT1 | 9 | | PCINT2 | 10, 11, 12, 13 | | PCINT3 | A0–A5 (14–19) | | | SerialPort (Mega) | Multiple hardware ports