Heltec wireless tracker

End Devices (Nodes) LMIC
1

I am trying to connect to TTN with the Heltec wireless tracker, but I cant find all the DIO pins.
I found DIO1 on pin 14, but I need DIO0 to.
Can somebody pass me the information to the right place to look.
Thanks

2

Maybe provide a link to the product so we know we’re looking at the correct hardware?

3

This is the link to the product

4

And what software do you want to use?

5 
I am now using this pio init file:
; PlatformIO Project Configuration File
;
;   Build options: build flags, source filter
;   Upload options: custom upload port, speed and extra flags
;   Library options: dependencies, extra library storages
;   Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html

[env:heltec_wireless_tracker]
platform = espressif32
board = heltec_wireless_tracker
framework = arduino
monitor_speed = 115200

lib_deps =
  # RECOMMENDED
  # Accept new functionality in a backwards compatible manner and patches
  MCCI LoRaWAN LMIC library

build_flags = 
  -D ARDUINO_LMIC_PROJECT_CONFIG_H_SUPPRESS
  -D hal_init=LMICHAL_init
  -D CFG_eu868=1
  -D CFG_sx1276_radio=1
6

There is no DIO0 on that board.

And there is no driver for the SX1262 in LMIC.

So you could use the tracker code provided by Heltec.

Or change boards …

7

Looking at the specs of the board you linked to that isn’t right. This definition is for older Heltec hardware. Use the Heltec provided software for that board.

8

Thanks you both, I see the problem now.
I dive into the Heltec software.
Thanks again. This was very helpfull

9

Update diving:
Got the wireless tracker working on TTN with this library: GitHub - ngraziano/LMICPP-Arduino: Lmic (LoraWAN-in-C) modified to C++

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