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10KM OFF-GRID CHAT SYSTEM 😱 | ESP32 + LoRa SX1278 (Ra-02) WhatsApp Style Messaging πŸ“‘ (Chat History)

4.8K viewsΒ· 211 likesΒ· 4:45Β· May 18, 2026

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In this project, I built a Pro WhatsApp-Style Off-Grid Chat System (ino code) with Chat History using 2 ESP32 boards and LoRa SX1278 (Ra-02) modules. No Internet Need This upgraded system allows real-time messaging without internet, just like WhatsApp, but fully offline using LoRa technology. It also supports chat history saving, making communication more advanced and user-friendly. πŸ“± Features: Up to 10KM long-range communication WhatsApp-style chat interface Chat history system (messages saved) Off-grid communication (no internet / no WiFi) Long-range wireless messaging using LoRa Works with mobile + web interface πŸ”§ Hardware used: 2x ESP32 2x LoRa SX1278 (Ra-02) This is a powerful DIY communication project for remote areas, emergency systems, and IoT learning. πŸ“Œ Buy on Aliexpress: πŸ”— Lora Ra-02: https://s.click.aliexpress.com/e/_c2RdzPRl πŸ”— Lora Ra-02: https://s.click.aliexpress.com/e/_c4r4ZqSX πŸ”— Lora Ra-02: https://s.click.aliexpress.com/e/_c3px81dZ πŸ”— Lora Ra-02: https://s.click.aliexpress.com/e/_c3y61zcn πŸ”— ESP32: https://s.click.aliexpress.com/e/_c3mIw2t9 πŸ”— ESP32: https://s.click.aliexpress.com/e/_c4rSw72L πŸ”— Jumper Wires: https://s.click.aliexpress.com/e/_c2zHagr1 πŸ”— Breadboard: https://s.click.aliexpress.com/e/_c3cBY9zZ πŸ“Œ Buy on Amazon: πŸ”— Lora Ra-02: https://amzn.to/4tucQbc πŸ”— Lora Ra-02: https://amzn.to/4sOI4c1 πŸ”— Lora Ra-02: https://amzn.to/4sRbRRu πŸ”— ESP32: https://amzn.to/4cOMn13 πŸ”— ESP32: https://amzn.to/3QFVg5C πŸ”— Jumper Wires: https://amzn.to/4sUlTkL πŸ”— Breadboard: https://amzn.to/4tZuHqy πŸ“Œ Amazon Finds & Tools We Recommend πŸ›’ https://c8ke.com/yellowpurple πŸ”—Code Download: https://drive.google.com/file/d/1Y8uv1mzMhPkWwVZbQAdmguG_cv-GUxH6/view?usp=sharing πŸ’¬ LIKE | COMMENT | SHARE | SUBSCRIBE πŸ”₯ Please support the channel by subscribing: πŸ”” https://www.youtube.com/channel/UCNqYc-ojesF6AbXwiWdZbeg?sub_confirmation=1 ━━━━━━━━━━━━━━━━━━ πŸ“Ί Watch More DIY & Tech Videos: πŸ”Ή Extend WiFi Range with Another Router (No Cable): https://www.youtube.com/watch?v=_EpCRg5ggEs πŸ”Ή Program ATtiny85 with Arduino Uno: https://www.youtube.com/watch?v=BL1gI4AcMOA πŸ”Ή TP-Link to Netgear Wireless Sharing (WDS Mode): https://www.youtube.com/watch?v=9CS3xfIpK90 πŸ”Ή Sokoban Level 11 Solution: https://www.youtube.com/watch?v=xvu6r5_4_T4 πŸ”Ή Arduino Ultrasonic Radar System DIY: https://www.youtube.com/watch?v=l8PhAIYB8Us&t=34s πŸ”Ή Connect Two Routers Wirelessly with WDS: https://www.youtube.com/watch?v=X-LLl9OIXK8 πŸ”Ή Extend WiFi with Another Router (Easy Guide): https://www.youtube.com/watch?v=wkyKX2ifPFo ━━━━━━━━━━━━━━━━━━ πŸ“© Contact for Inquiries: πŸ“§ Email: EmailForViewers@gmail.com #LoRa #SX1278 #yellowpurple ━━━━━━━━━━━━━━━━━━ 🌟 Thank you for your support! 🌟

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