Communication Between LoRa RYLR 900 and LoRa E5 mini

Community
#1

Hi,

I’m new to LoRa E5 mini. I have a devboard (LoRa E5 mini) and RYLR900 LoRa modules.I don’t know how to communicate between LoRa E5 and RYLR900 with AT commands. Can someone help me?

Best Regards
Muhammet Enes ŞİMŞEK

#2

Hi,
May I ask why do you need RYLR900? LoRa-E5 already contains a lora transceiver chip. And RYLR900 is just a SPI peripheral which means it can’t process AT commands.

#3

Hi,

Thanks for your feedback,

My project consist of 2 parts one of them is LoRa E5 mini devboard and the other one is ESP32 which connected with RYLR907 LoRa module. So i need to communicate LoRa E5 mini and RYLR907 LoRa module between each other. Actually it doesnt necessary to use AT commands. How can I receive or transmit a message between RYLR907 and LoRa E5 mini? Which HAL functions or registers I have to use?

Best Regards
Muhammet Enes ŞİMŞEK

#4

OK, so you need a P2P communication between LoRa E5 and your ESP32 board.
Assume that you are using 868.1MHz SF12 Bandwith 125KHz, you can use the following AT command to send LoRa packets, and receive them with your ESP32 board:
AT+MODE=TEST
AT+TEST=RFCFG,868.1,SF12,125,12,15,14,ON,OFF,OFF
AT+TEST=TXLRSTR,“hello world”

Please refer to https://files.seeedstudio.com/products/317990687/res/LoRa-E5%20AT%20Command%20Specification_V1.0%20.pdf for more details.