Uploaded September 2022 | Updated September 2026, 2 weeks ago

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Arduino IDE + ESP32 + LoRa Ra-02 | Communication between ESP32 using LoRa Ra-02 SEMTECH SX1278 433MHz.

In this project video I use Arduino IDE 1.8.9 , Notepad++ V7.7.1 , Arduino Core for The ESP32 (Version 1.0.6), ESP32 (ESP32 DEVKIT V1), LoRa Ra-02 SEMTECH SX1278 433MHz, OLED Display 128x64 SSD1306 0.96 Inch I2C, DHT11 Sensor, Tact Push Button Switch and LEDs.

00:00 Opening
00:34 Project Preview
01:31 Explanation of how this project works
02:44 Modules and Components used in this project
03:19 Installation image for ESP32 Master
03:24 Installation image for ESP32 Slaves
03:34 Tested the installation of the OLED Display and Buttons on the ESP32 Master
06:05 Tested the installation of the DHT11 sensor and LED on Slave 1 and Slave 2
09:12 Tested the installation of LoRa Ra-02 on ESP32 Master and ESP32 Slaves
16:51 Tested the installation of LoRa Ra-02 on ESP32 Master and ESP32 Slaves - Demo
17:14 The last step of this project
23:58 The main demo of this project
24:44 Closing

Download Arduino Code and other files : drive.google.com/file/d/1NK4mjBBeEWklTIe2x545k3YdnC3qQuJp/view?usp=sharing

The code file is saved in the .rar file format. I created a .rar file using Winrar V5.50, so to extract it, make sure you use the same version of Winrar that I use or the latest version or use the winrar extractor online.

SORRY IF MY ENGLISH IS CONFUSING, I USE AN ONLINE TRANSLATOR.

THANKS FOR WATCHING & DON'T FORGET TO LIKE , SHARE, COMMENT AND SUBSCRIBE.

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For other video tutorials on this channel, please see this playlist:

- Basic4Android (B4A) Tutorials : youtube.com/watch?v=-BIq32-qEgA&list=PLnXsmScWzcm6RVlhPM7qg_OJ2N8OpV99d
- Electronics Tutorials : youtube.com/watch?v=rLdsWt6EP6w&list=PLnXsmScWzcm766h5Dn4AJjbJRzDfCPh4h
- Arduino Tutorials : youtube.com/watch?v=A3_EBZqCG5s&list=PLnXsmScWzcm48hvcTTRAUFcP5Fjd4u8cS
- Great Cow Basic Tutorials : youtube.com/watch?v=orHrLmEvp0o&list=PLnXsmScWzcm7xejzacm5cKJMIh_tXXxN8
- Bascom Avr Tutorials : youtube.com/watch?v=JYKSkNQq9eM&list=PLnXsmScWzcm6F9gX1wYenqjKdqVSM7d6B
- VB .NET Tutorials : youtube.com/watch?v=Sy2vjWO0ydM&list=PLnXsmScWzcm4g8AWEJ6WXVUOBh_cWF5_z
- LoLin NodeMCU V3 ESP12E ESP8266 Tutorials : youtube.com/watch?v=8jMr94B8iN0&list=PLnXsmScWzcm5MERfTvcUNKsYhOUGKe3-V
- ESP32 Tutorials : youtube.com/watch?v=To3TIOFX6cA&list=PLnXsmScWzcm7Y5yCDItJP5Kny_MJ8DeDD
- ESP32 CAM Tutorials : youtube.com/watch?v=_5VmYJZI4XI&list=PLnXsmScWzcm6HjC0CIfVmRG1855tjhj5z
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Download Arduino IDE : arduino.cc/en/Main/Software
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Libraries used :
- LoRa : arduino.cc/reference/en/libraries/lora
- Adafruit SSD1306 : arduino.cc/reference/en/libraries/adafruit-ssd1306
- Adafruit GFX : arduino.cc/reference/en/libraries/adafruit-gfx-library
- DHT sensor library : arduino.cc/reference/en/libraries/dht-sensor-library
- Adafruit Unified Sensor : arduino.cc/reference/en/libraries/adafruit-unified-sensor
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Reference :
- Color reference when editing video : arduino.cc/en/Trademark/CommunityLogo
- ESP32 with LoRa using Arduino IDE – Getting Started : randomnerdtutorials.com/esp32-lora-rfm95-transceiver-arduino-ide
- Problem with Ra02 restart : github.com/sandeepmistry/arduino-LoRa/issues/381

and from several other sources.
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