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jgromes
Getting -705 when begin()
I am trying to init LORA on a TTGO T-Beam ESP32 LORA. However, I keep getting -705. Is there something I am missing? Thanks for your help in advance.
#define SCK 5 // GPIO5 -- SX1278's SCK #define MISO 19 // GPIO19 -- SX1278's MISnO #define MOSI 27 // GPIO27 -- SX1278's MOSI #define SS 18 // GPIO18 -- SX1278's CS #define RST 23 // GPIO14 -- SX1278's RESET #define RADIO_DIO1_PIN 33 #define BUSY_PIN 32
SPIClass newSPI(VSPI); SX1268 radio = new Module(SS, RADIO_DIO1_PIN, RST, BUSY_PIN, newSPI);
newSPI.begin(SCK, MISO, MOSI, SS); int state = radio.begin(433.0F);
Hardware setup LILYGO® TTGO T-Beam V1.1 ESP32 LORA
Debug mode output M SX126x CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
CMD 80 DATW 0 0
Based on the debug output, the SPI is always returning 0x00 - that probably means there's an issue with the hardware. I would check if the pins are actually correct.
