PJ,
the layout is very simple: just connected the Grove cable from the gps to a Grove board with the Arduino . And in the configuraton of the Arduino, i only see a baud rate. But the cable only has Rx and TX so it must be Xon/Xoff.
I don’t have hardware to connect Serial1 to another computer port to check what comes out. As technician i would like to figure out such things. As customer and simple Arduino user, i would expect that it would not be needed to go into such details
I tried the example of Grove - GPS (Air530) | Seeed Studio Wiki but it doesn’t describe how to configure the thing.
The manual that Seed publishes, basically just the datasheet of the chip, is in Chinese but someone was so kind to translate it: Heltec_AB02S_Mods/Air530 GPS Manual Text English.pdf at master · sivaelid/Heltec_AB02S_Mods · GitHub
And that shows commands like $PGKC243*2A which should return a similar line with the current NMEA lines that are given. I entered that in a minimal sketch(see below) but it doesn’t give any response.
void setup(void)
{
Serial.begin(115200);
Serial1.begin(9600);
Serial.println(“\nSetup\n”);
while (Serial1.available()){
Serial1.read();
}
Serial1.print(“$PGKC243*2A\r\n”)
}
void loop(void)
{
while (Serial1.available()) {
char c = Serial1.read();
Serial.print(c);
}
}