Heltec esp32 Lora v3 + GPS

I just got a pair of stock Heltec Lora v3 boards and they work fine with GPS info from Bluetooth connected smartphones.

I’d like to use the heltec without the phone and add a ublox neo6 compatible GPS module.

My question is : using the already compiled and installed firmware , which heltec pins should I solder the GPS TX and RX leads to?

Also, where are the pin assignments defined in the src? I looked in configuration.h but didn’t see anything.

Many thanks for reading and hopefully answering…

Looks like you should be able to connect to GPIO 2 and 3 according to this: Enable GPS capabilities on heltec V3 by ghostop14 · Pull Request #2039 · meshtastic/firmware · GitHub

thanks. Does this mean I need to flash the firmware contained in the zip file ? or am I ok just to connect the GPIO 2 and 3 and set Device settings>Position Config : GPS Enabled , Redefine GPS_RX_PIN = 2, Redefine GPS_TX_PIN = 3 ?

You would need 2.0.8 or later as the gps wasn’t enabled until that release.

Many thanks for your help. I’ll give that a try when my GPS arrives.

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good info. Just got my v3 boards in today and waiting on gps modules myself too!

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