Build Instructions

Collapse

• 1

  Intro

  Connect the project to your laptop or phone and then chat between the devices without internet or SMS using just LoRa.

  Hey, what's up, guys? Akarsh here from CETech.

  This PCB also has a display and 4 buttons which can be used as a remote control for some device as well. You can do anything with the code design your own UI. So, in short, this project has an esp8266 which can give WiFi functionality, LoRa module, 1.8 inch TFT display, 4 push buttons for making a UI. Possibilities with the code are endless.

  It 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 the presence of 4G/LTE/3G/GSM/WiFi/SMS. Which I have done in an earlier project which you can find here: https://hackaday.io/project/164090-lora-messenger-for-two-devices-for-distance-up-to

• 2

  Parts

  Firstly as the main part, I used an ESP8266 module with a breakout board. Attached it on the PCB using some male and female headers. I used a 1.8 inch TFT SPI display, TP4056 module for battery charging and protection and an old mobile phone battery.

  For the LoRa purpose, I used an RYLR896. I highly suggest this module as it is very easy to use over UART using AT commands.

  You can find the parts below:

  1) ESP8266 Module

  2) ESP12 breakout board

  3) TFT display

  4) TP4056 module

  5) Reyax RYLR896 LoRa module

  6) My PCB design

  For the last two parts if you have difficulty in finding them out you can message/email me and either I can help you find it in your area or I can ship them to you if you wish.

• 3

  Get PCBs for Your Project Manufactured

  You must check out JLCPCB for ordering PCBs online for cheap!

  You get 10 good quality PCBs manufactured and shipped to your doorstep for 2$ and some shipping. You will also get a discount on shipping on your first order. To design your own PCB head over to easyEDA , once that is done upload your Gerber files onto JLCPCB to get them manufactured with good quality and quick turnaround time.

View all 9 instructions