Discover how to build the ultimate off-grid communication device! In this step-by-step tutorial, we create a secure, private LoRa messenger using the powerful Heltec WiFi LoRa 32 (ESP32) module. Learn how to use a rotary encoder as a unique and practical keyboard to type and send encrypted messages without needing Wi-Fi or a SIM card. This project is perfect for emergency situations, hiking, or any scenario where you need reliable, long-range communication. We'll cover the complete build process, including wiring, library installation in the Arduino IDE, and a real-world demonstration where we test the device over an incredible 13-mile (21km) range! All code and resources are linked below.
📚⬇️ Download and resource page
https://robojax.com/RJT642📌All Packages on Amazon (N33, 3000mAh and WiFi LoRa 32):
Amazon USA:
https://amzn.to/4luXA9B📌Meshnology Website:
https://meshnology.com/collections/meshnology-n32-lora-v3-customized-kit/products/n33-esp32-lora-v3-kit-with-915mhz-antenna-3000mah-battery-case-wifi-bluetooth-for-arduino-iot-meshtasticHeltec WiFi LoRa 32 V3
🔥Amazon USA (with 1000mAh 🔋 or 3000mAh🔋) :
https://amzn.to/45O15n7 📌eBay
https://ebay.us/NQq3vD📌AliExpress:
https://s.click.aliexpress.com/e/_oFX7JpcBanggood:
https://www.banggood.com/custlink/G3v8AmMNwiAmazon Ireland:
https://amzn.to/45wgSWY🚀Related Video:
Sending Temperature over LoRa (N3):
https://youtu.be/76UR9dDuf-kBattery/Solar monitoring send Voltage over LoRa (N33):
https://youtu.be/rOVVl9EI-SoTurn on/off devices over LoRa:
https://youtu.be/lhLQqG5H8_MDoor Monitoring alert over LoRa:
https://youtu.be/-YWocAllrbAControl Servo Motor over LoRa band:
https://youtu.be/EPynuJ7sasYTurn on/off devices over LoRa (N35):
https://youtu.be/W9FMmBFljXcPocket Sized LoRa Messenger:
https://youtu.be/IsOSvrF60J4Meshpocket Meshtastic Power bank:
https://youtu.be/FYHrTWS00n4Chapters of this video:
00:00 Introduction
5:32 Package and preparing N33 case
15:03 Wiring
15:32 Library and code
21:34 How to use it
24:21 Demonstration
27:14 13 mile, 21km direct line of sight demo
Tutorial by Ahmad Shamshiri form Canada
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