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andyshinn
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@andyshinn andyshinn commented Sep 17, 2025

This is mostly a copy of RAK4631 as a base and then modeled after the Heltec ESP32 variants. Needed the min spiffs partition since it is a little too large to fit on the default.

One issue I have right now is that it takes a bit of time to boot with errors from I2C:

[  6415][E][Wire.cpp:513] requestFrom(): i2cRead returned Error 263
[  7422][E][Wire.cpp:513] requestFrom(): i2cRead returned Error 263
[  8429][E][Wire.cpp:513] requestFrom(): i2cRead returned Error 263
[  9436][E][Wire.cpp:513] requestFrom(): i2cRead returned Error 263
[ 10443][E][Wire.cpp:513] requestFrom(): i2cRead returned Error 263

I am not sure if that is a sensor issue or not. Would like some guidance on the I2C errors.

@andyshinn andyshinn force-pushed the ashinn/rak11200-support branch from de189e5 to 00425c2 Compare September 17, 2025 15:57
@andyshinn andyshinn marked this pull request as ready for review September 20, 2025 16:44
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Per Discord message it is possible that the I2C errors are normal. Opening for review and feedback.

#define P_LORA_DIO_1 22 // GPIO22 (ESP32 pin 36 -> IO6/DIO1)
#define P_LORA_NSS 32 // GPIO32 (ESP32 pin 8 -> SPI_CS)
#define P_LORA_RESET 23 // GPIO23 (ESP32 pin 37 -> IO4/NRESET)
#define P_LORA_BUSY RADIOLIB_NC
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I haven't seen an sx1262 that does NOT use a BUSY gpio. Could you double-check this?

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