Wio LTE Cat M1/NB-IoT RSSI example not working

Products & Technology Wio Series
#1

I configured the system and the Arduino IDE as instructed. Then I ran the default RSSI reporting example of the Wio LTE Cat M1/NB-IoT board. However, the board keeps outputing “.” at the serial port. In other words, the SARA module is not alive.



Do you have any suggestion?



Thanks.

#2

MAKE A BACKUP FIRST!

Then in ublox_sara_r4.cpp (in library src) try changing PowerOn() to:



void Ublox_sara_r4::powerOn(void)

{

init_AtTransport();



// Enable power to the module

pinMode(MODULE_PWR_PIN, OUTPUT);

digitalWrite(MODULE_PWR_PIN, HIGH);



// Pause a bit to allow power to come up

delay(100);



// Assert PowerKey pin for just over 3.2 seconds

pinMode(PWR_KEY_PIN, OUTPUT);

digitalWrite(PWR_KEY_PIN, HIGH);

delay(3500);

digitalWrite(PWR_KEY_PIN, LOW);



// Pause at short while

delay(200);



// Assert it again for just under a second

digitalWrite(PWR_KEY_PIN, HIGH);

delay(800);

digitalWrite(PWR_KEY_PIN, LOW);



// Set RTS pin low to enable UART communication

pinMode(RTS_PIN, OUTPUT);

digitalWrite(RTS_PIN, LOW);

}



Regards

-Bill K

R O SoftWare