Programmable LoRa Module with ESP8266 Wi-Fi

There are many lora modules and many boards that contain lora module on the market. Its modules are difficult to use alone, and the boards never fully meet our needs. I designed a programmable lora module so that it would be easy to use with all kinds of boards. The mcu controlling the module is an esp8266 chip. In this way, our module gained Wi-Fi feature. In particular I did a few tests with the Raspberry Pi Pico, which gives the pico board the Wi-Fi feature. You can program the board as you wish with the ESP8266EX method. I just wrote a code that will enable two lora modules to communicate with each other. The rest of the development process is in your hands. Below are two different board designs and test results. I hope this module will help you improve your projects. Click for pcb production file. Feel free to contact me for any problem.

Sponsor

Thanks to PCBWay for handling PCB production.

Schematic

Hardware & BOM

This PCB Desing with Eagle

No	PCB Components	Package	Piece	No	PCB Components	Package	Piece
1	ESP8266EX	32-VFQFN	1 pcs	2	xmc flash 250hb0b	Soic-8	1 pcs
3	nx3225sa-24mhz	3225	1 pcs	4	22pf Cap	0402	2 pcs
5	2450AT45A100E	2450	1 pcs	6	5.6pf Cap	0402	1 pcs
7	12K Resistor	0402	2 pcs	8	22nf Cap	0402	1 pcs
9	100uf Cap	1210	2 pcs	10	10K Resistor	0402	4 pcs
11	100nf Cap	0402	1 pcs	12	1uf Cap	0603	1 pcs
13	10uf Cap	0805	2 pcs	14	LED	0603	1 pcs
15	Header 1x4 ML	2.54-90	1 pcs	16	LoRa Module		1 pcs
17	Button-SMD	3X4X2.5MM-4pin	2 pcs

Software & Library

The project runs via the Arduino IDE. If it is not installed, install it.
Install ESP8266 to Arduino.
Install the LoRa Lib. to Arduino.
Upload this code to board.
You can use it as a LoRa gateway, check this repository.

byronin/LoRa_Wi-Fi_Module