Full article

Finally, I’m going to publish my LoRa shield for WeMos LOLIN32. This is one of my preferred devices, and I use a simplified version of shield for rapid prototyping, but finally, I created a better version that can be shared with all.

You can find more information about WeMos LOLIN32 here “ESP32 WeMos LOLIN32 high-resolution pinout and specs”

and you can find all the information about the EByte tested device on the “Ebyte E32 LoRa tutorial” and “Ebyte E22 LoRa tutorial“.

PCB

I also created a PCB for ESP32 DOIT DEVKIT v1, and you can find It here “Ebyte LoRa E32 device for Arduino, esp32 or esp8266: WOR (wake on radio) and new ESP32 shield“.

Here is the schema of the PCB

You can configure all LoRa information and power.

WeMos LOLIN32 Ebyte LoRa Exx shield up view

The result is this:

The standard configuration, with a jumper on standard position, is

LoRa_E22 e22ttl100(&Serial2, 15, 21, 19); // RX AUX M0 M1

But with a jumper, you can select

standard Serial instead of Serial2 as UART interface

15 or 02 for AUX

19, 12, 14, 27 for M0

21, 25, 32, 33 for M1