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Problem with E22-900M30S from ebyte

im using esp32 devkit v1, and a code from a library that was made by loratracker https://github.com/StuartsProjects/SX12XX-LoRa, but whenever i run the esp32 receiver example, it always shows no device responding at the serial monitor, i have checked the wiring many times, but the result is still the same, i really appreciate it if any of you can help me with this problem

Dear,

We do not support external code, please open a issue in the SX12XX-LoRa project.
Nevertheless, you can try to lower SPI bus speed, it might help depending of your wiring