@mrussi Not sure if you still need this info, but I'll leave it here in case anyone else needs it. I couldn't find this either so i had to look at the heltec pinout diagram and compared to the ESP32 Library /* * The MySensors Arduino library handles the wireless radio link and protocol * between your home built sensors/actuators and HA controller of choice. * The sensors forms a self healing radio network with optional repeaters. Each * repeater and gateway builds a routing tables in EEPROM which keeps track of the * network topology allowing messages to be routed to nodes. * * Created by Henrik Ekblad <henrik.ekblad@mysensors.org> * Copyright (C) 2013-2018 Sensnology AB * Full contributor list: https://github.com/mysensors/MySensors/graphs/contributors * * Documentation: http://www.mysensors.org * Support Forum: http://forum.mysensors.org * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * ******************************* * * REVISION HISTORY * Version 1.0 - tekka * * DESCRIPTION * The ESP32 gateway sends data received from sensors to the WiFi link. * The gateway also accepts input on ethernet interface, which is then sent out to the radio network. * * Make sure to fill in your ssid and WiFi password below. */ // Enable debug prints to serial monitor #define MY_DEBUG // Enables and select radio type (if attached) //#define MY_RADIO_RF24 //#define MY_RADIO_RFM69 #define MY_RADIO_RFM95 #define MY_DEBUG_VERBOSE_RFM95 #define MY_RFM95_RST_PIN 14 #define MY_RFM95_CS_PIN 18 #define MY_RFM95_IRQ_PIN 26 #define MY_RFM95_IRQ_NUM MY_RFM95_IRQ_PIN #define MY_SOFT_SPI_MOSI_PIN 27 #define MY_SOFT_SPI_SCK_PIN 5 #define MY_RFM95_FREQUENCY (RFM95_868MHZ) #define MY_RFM95_MODEM_CONFIGRUATION RFM95_BW125CR45SF128 #define MY_GATEWAY_ESP32 #define MY_WIFI_SSID "WiFi_SSID" #define MY_WIFI_PASSWORD "password" // Set the hostname for the WiFi Client. This is the hostname // it will pass to the DHCP server if not static. #define MY_HOSTNAME "ESP32_GW_LoRa" // Enable MY_IP_ADDRESS here if you want a static ip address (no DHCP) //#define MY_IP_ADDRESS 192,168,1,100 // If using static ip you can define Gateway and Subnet address as well //#define MY_IP_GATEWAY_ADDRESS 192,168,1,1 //#define MY_IP_SUBNET_ADDRESS 255,255,255,0 // The port to keep open on node server mode #define MY_PORT 5003 // How many clients should be able to connect to this gateway (default 1) #define MY_GATEWAY_MAX_CLIENTS 2 #include <MySensors.h> void setup() { // Setup locally attached sensors } void presentation() { // Present locally attached sensors here } void loop() { // Send locally attached sensors data here }