Cannot send commands to GPS Air530

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Hello…

A followup on this thread.

A quick update for Serial communication example for XIAO ESP32S3 via Grove Expansion Base with pins D7,D6 for Rx,Tx respectively.

Regards…


  // GPS pass data Serial test (from serial port tester)

  // Receives from the main USB serial port, sends to the (Serial 1) port.
  // Receives from serial port 1(GPS AIR530), sends to the USB main serial (Serial 0).

  // This example works on Xiao Nref52840 Sense (serial1)port pins 7,8

  // The circuit:
  // - GPS AIR530 serial device attached to Serial port 1
  // - USB Serial Monitor open on Serial port (this one is port 21)
  // - Once you get data then try the U center app (older version )
  // - add free Google API key to prefrences to get the whole experiernce. total time 30 minutes
  

// Serial communication example for XIAO ESP32S3 via Grove Expansion Base
// This example reads incoming data from Serial1 (via Grove port)
// and prints it to the Serial monitor (via USB).

#define RX_PIN D7 // Grove RX pin (connected to Grove device TX)
#define TX_PIN D6 // Grove TX pin (connected to Grove device RX)

void setup() 
{
    // Initialize USB serial for debugging
    Serial.begin(115200); 
    while (!Serial); // Wait for the Serial port to connect

    // Initialize hardware serial (Serial1) on the Grove pins D6 and D7
    // The baud rate must match your Grove device's baud rate.
    Serial1.begin(9600, SERIAL_8N1, RX_PIN, TX_PIN); 

    Serial.println("XIAO ESP32S3 Serial Example Started");
    Serial.println("Monitoring Serial1 (Grove) for incoming data...");
}

void loop() 
{
  // Check if data is available from the Grove device on Serial1
  if (Serial1.available()) 
  {
      // Read the incoming byte
      char inByte = Serial1.read();
      
      Serial.write(inByte);
  }


    // read from port 0, send to port 1:
    if (Serial.available()) 
    {
      int inByte = Serial.read();
      Serial1.write(inByte);
    }


}
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