Teseo-LIV3F, No GPS coordinate

Forum|Forum|5 years ago
July 13, 2020
4 replies
4134 views

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

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Best answer by Francesco Virlinzi

Hi

Your schematic make sense

You are using tps22093 to provide power to the antenna... voltage comes from VCCRF (correct) and ANT_OFF to enable/disable the switch. This parts can not impact LIV working.... at least (in Over current) it could turnoff the antenna no more than that.

I don't understand where VCC power comes from. I see VIN is the same for LIV and TPS781... but who is providing VIN?

F

Francesco Virlinzi

Technical Moderator

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.1Author

Associate III

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.