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WhatsApp-Style Off-Grid Chat System with Chat History | ESP32 + LoRa SX1278 (Ra-02) ⚡ Flash BIN File

2.7K views· 120 likes· 4:14· Apr 27, 2026

🛍️ Products Mentioned (17)

Build your own powerful off-grid messaging system with this ESP32 + LoRa SX1278 (RA-02) project. Designed with a clean WhatsApp-style interface, this system allows you to send and receive messages without internet or cellular networks — perfect for remote communication, emergency setups, and IoT enthusiasts. This project supports real-time messaging with stored chat history, giving you a seamless and reliable offline communication experience. The included BIN file makes setup quick and hassle-free — just flash and start chatting. Whether you're experimenting with LoRa technology or creating a private communication network, this system delivers performance, simplicity, and flexibility. Key Features: 📡 Off-grid communication (No WiFi / No SIM required) 💬 WhatsApp-style chat interface 🕘 Chat history storage ⚡ Fast and stable LoRa messaging 🔧 Easy setup with ready-to-use BIN file 📶 Long-range communication support 🧠 Powered by ESP32 + SX1278 RA-02 module 🔧 Hardware used: 2x ESP32 2x LoRa SX1278 (Ra-02) This is a powerful DIY communication project for remote areas, emergency systems, and IoT learning. 📌 Buy on Aliexpress: 🔗 Lora Ra-02: https://s.click.aliexpress.com/e/_c2RdzPRl 🔗 Lora Ra-02: https://s.click.aliexpress.com/e/_c4r4ZqSX 🔗 Lora Ra-02: https://s.click.aliexpress.com/e/_c3px81dZ 🔗 Lora Ra-02: https://s.click.aliexpress.com/e/_c3y61zcn 🔗 ESP32: https://s.click.aliexpress.com/e/_c3mIw2t9 🔗 ESP32: https://s.click.aliexpress.com/e/_c4rSw72L 🔗 Jumper Wires: https://s.click.aliexpress.com/e/_c2zHagr1 🔗 Breadboard: https://s.click.aliexpress.com/e/_c3cBY9zZ 📌 Buy on Amazon: 🔗 Lora Ra-02: https://amzn.to/4tucQbc 🔗 Lora Ra-02: https://amzn.to/4sOI4c1 🔗 Lora Ra-02: https://amzn.to/4sRbRRu 🔗 ESP32: https://amzn.to/4cOMn13 🔗 ESP32: https://amzn.to/3QFVg5C 🔗 Jumper Wires: https://amzn.to/4sUlTkL 🔗 Breadboard: https://amzn.to/4tZuHqy 📌 Amazon Finds & Tools We Recommend 🛒 https://c8ke.com/yellowpurple 🔗ESP32 Flasher + Bin File Download: https://drive.google.com/file/d/1CkwQX2Uti3vTOiPxwShqB8NFSpFmidRi/view?usp=sharing 💬 LIKE | COMMENT | SHARE | SUBSCRIBE 🔥 Please support the channel by subscribing: 🔔 https://www.youtube.com/channel/UCNqYc-ojesF6AbXwiWdZbeg?sub_confirmation=1 ━━━━━━━━━━━━━━━━━━ 📺 Watch More DIY & Tech Videos: 🔹 Extend WiFi Range with Another Router (No Cable): https://www.youtube.com/watch?v=_EpCRg5ggEs 🔹 Program ATtiny85 with Arduino Uno: https://www.youtube.com/watch?v=BL1gI4AcMOA 🔹 TP-Link to Netgear Wireless Sharing (WDS Mode): https://www.youtube.com/watch?v=9CS3xfIpK90 🔹 Sokoban Level 11 Solution: https://www.youtube.com/watch?v=xvu6r5_4_T4 🔹 Arduino Ultrasonic Radar System DIY: https://www.youtube.com/watch?v=l8PhAIYB8Us&t=34s 🔹 Connect Two Routers Wirelessly with WDS: https://www.youtube.com/watch?v=X-LLl9OIXK8 🔹 Extend WiFi with Another Router (Easy Guide): https://www.youtube.com/watch?v=wkyKX2ifPFo ━━━━━━━━━━━━━━━━━━ 📩 Contact for Inquiries: 📧 Email: EmailForViewers@gmail.com #ESP32 #LoRa #yellowpurple ━━━━━━━━━━━━━━━━━━ 🌟 Thank you for your support! 🌟

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