Here there are the raw codes to get an Arduino and an ESP8266 connected at SX1276. They are able to do LoRa bidirectional communication between them. It has been developed a PyQt program to change frequency dynamically and be able to check CRC and AES features in real time:
![SX1276 and Arduino Nano hardware](https://www.binefa.cat/blog/wp-content/uploads/2016/06/Captura-de-2016-06-06-174050-300x218.png)