Teseo-LIV3F, No GPS coordinate

[AAl S.1]

I made a PCB using Teseo-LIV3F as stand alone, tried to connect TX and RX of the module to Arduino TX and RX using I TinyGps++ library, but I couldn't get any response from the module. I tried to connect the module to software and hardware serial of the Arduino and couldn't also get any response. When I connect the module to USB to TTL I could get response. I am using an active antenna. I have attached the schematic which I am using. Hope to get some help to solve my problem.

Best regards

[Francesco Virlinzi]

Hi

Do you see the PPS pulsing?

Is LIV3F out-of-Reset (Reset pins has to be high to guarantee LIV running)

Regards

Francesco

[AAl S.1]

Hi, I have no pin out for PPS and Reset pins to the Arduino. I don't understand why when i connect the TX,RX OF Teseo to USB to TTL I could see that the module responses. The pins PPS and Reset in my schematic that i share with you are have no pinout to th MCU.

[AAl S.1]

I just can see NEMA information when I connect USB to TTL

[Francesco Virlinzi]

Which values do you have on:

• VCC/VCC_IO?
• VBAT?

[AAl S.1]

3.3v

[AAl S.1]

Is the schematic correct? Is there any need to connect PPS and rest to the MCU?​

[Tesla DeLorean]

Perhaps you have the RX/TX sense backward on the Arduino, or the baud rate is wrong.

[Francesco Virlinzi]

Schematic seems correct

PPS and Reset pins can stay not-connected (LIV has internal resistor to guarantee correct value)

Voltage 3.3 is OK

It has to be running

Just for testing could you add a LED on the PPS? just to understand if LIV is running.

[AAl S.1]

Thanks for help, I will try that. ​I also measure the TPS out pin and it was 1.2V, even i can see the vcc Rf is 3.3v, is that normal?