LoRa-E5

Sources

• Eval Board LoRa -E5 mini: https://wiki.seeedstudio.com/LoRa_E5_mini/
• STM32Cube MCU Package for STM32WL series

Datasheets

• Datasheet of STM32WLE5JC
• Datasheet of the LoRa-E5 module
• AT Command Specification of LoRa-E5 with firmware by seeed

Development Environment

I tried several options. And finally a ended up using mbed studio

Programming Interface

https://jeelabs.org/book/1547a/index.html

Pinout

Pinout of the LoRa-E5 as pdf

Examples with AT Command Firmware

Connect to LoRa -E5 via UART at 9600 baud

Show all IDS

Command:

AT+ID

Response:

+ID: DevAddr, 00:06:21:74
+ID: DevEui, 2C:F7:F1:20:32:30:65:03
+ID: AppEui, 80:00:00:00:00:00:00:06

Set the APPKEY

AT+KEY=APPKEY,12345612345612345612345612345612

Use OTAA to join the network

AT+MODE=LWOTAA

Join the network

Command:

AT+JOIN

Response:

+JOIN: Start
+JOIN: NORMAL
+JOIN: Network joined
+JOIN: NetID 000000 DevAddr 00:03:9D:F8
+JOIN: Done

Optional: Switch device to class c

AT+CLASS=C

Send upstream data

Command:

AT+CMSGHEX="010203"

Response:

+CMSGHEX: Start
+CMSGHEX: Wait ACK
+CMSGHEX: ACK Received
+CMSGHEX: RXWIN1, RSSI -103, SNR -4.0
+CMSGHEX: Done

Switch to low power

AT+LOWPOWER 

Set the RTC

AT+RTC="2021-10-08 16:55:00"

Read the RTC

Command:

AT+RTC

Response:

+RTC: 2021-10-09 11:40:48