Connect the project to your laptop or phone and then chat between the devices without internet or SMS using just LoRa. Serial terminal based
Hey whats up Guys! Akarsh here from CETech.
Today we are going to make a project which can be connected to your smartphone or any computer and it makes that device LoRa enabled messenger. Now when that will be done you would be able to message any other device using the same LoRa messenger. This all is done without presence of 4G/LTE/3G/GSM/WiFi/SMS.
Lets start with the project now
To make this you will need an ESP8266 board, I suggest to use a NodeMCU style board, I used Firebeetle board from DFRobot as it has on board battery charging and monitoring solution.
For the LoRa purpose I used a RYLR896. I highly suggest this module as it is very easy to use over UART using AT commands.
I would also recommend using a PCB to make the project so that adding battery/OLED display/switch/esp8266 doesnt remain difficult. You can order your PCBs from PCBWAY as they offer 10 PCBs for just 5$. Check out their online Gerber viewer function.
The Firebeetle board ESP8266
1. The LoRa module we have is a UART module which is configured using AT commands.
2. The module houses a STM32 MCU which does all the talking to the SPI LoRa module onboard the RYLR896.
3. The commands in the picture are basic ones you may refer to this document for more: REYAX-Lora-AT-COMMAND-GUIDE
4. I still strongly recommend you to go through my YouTube video where I explain this properly.