ebyte e220 LoRa receiving problem

[Kadem41]

Hello,

I’m working on a LoRa(e220-400t22d) communication project using an F411 Blackpill and a Nucleo F446 board. The Blackpill is connected to the transmitter LoRa module, while the Nucleo board is connected to the receiver module.

On the transmitter side, I’m reading a 12-bit ADC value and packaging it for transmission. Using the debugger, I can correctly monitor the variables on the transmitter. However, after flashing the code and powering up the transmitter, when I debug the receiver board, I can’t see any variable values updating at all.

Note: I’ve configured both LoRa modules to have the same address and channel(etc.) settings. While the transmitter LoRa module warms up, there is no activity on the receiver LoRa side. I’ve attached both transmitter and receiver main.c files for reference.

[Tesla DeLorean]

The provided code is very superficial.

All the transfer details are handled in the E220-440T22D, perhaps start with some basic comms with the LoRa modem, perhaps with USB-to-CMOS Serial adapter, or forwarder on a STM32, where you actually demonstrate data transfer. Chat back and forth with a terminal application.

The LoRa receiver needs to be listening at the exact time the transmitter is sending, it doesn't retry or guarantee delivery.