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Need help about the Ping Pong example with stm32l053 and LoRa module sx1272

Question asked by adrien dalla costa on Jun 12, 2018
Latest reply on Jun 13, 2018 by Clive Two.Zero



I am working on a project about LoRa expansion board, I have an stm32l053 Nucleo and an I-NUCLEO-LRWAN1 with a sx1272 transceiver.


I am trying to compile the PING PONG project from STM32CubeExpansion_LRWAN_V1.1.5, but each time there is RX_TIMEOUT that appears on the terminal (termite or terra term or even Putty). And we have no communication between our 2 modules. We tried do make some modifications, such as those shown in the link below:


We also tried to run the code and verify that there is a transmission with a spectrum analyzer, but nothing appeared.


We were trying to understand the functioning of the ping-pong example to understand how the transmission with LoRa Module works. Because our target is to enable communication between 2 LoRa module, one as a master (its mission will be to collect the data of the different sensors and transmit it,) and the other one as a slave (its mission is to receive the data of the master and then transmit it with Uart to the PC).


If you may want help us to find a solution to our problem.


Thank you.