RAK5146 GPS_PPS input

LPWAN Developer Gateways / Concentrators
1

I’m trying to figure out if there is a method to input PPS signal from a separate GPS device in order to provide the timing for Class B beaconing.

The datasheet for the RAK5146 shows
pin 19 as PPS digital output

However, it also contains these 2 statements about GPS_PPS input.

GPS_PPS

The RAK5146 includes the GPS_PPS input for received packets time-stamped and Fine timestamp

GPS_PPS GPS 1 PPS input Input DC voltage at GPS_PPS input pin -0.3 V 3.6 V

Is there a way to input a GPS PPS signal? Does it apply to all models (-110, -115, -210, -215)?

thank you in advance!

2

Hi @d0rkfish Already replyed in the Support Ticke, but will share here for the wider audience.
If the RAK5146 is with GPS, the PPS is directly fed to the SX1303 and exposed on the PPS gold finger pin as output.
If the RAK5146 is without GPS, the PPS signal can be fed on the same PPS PIN, as in this case it is input.