RadioLib Build for WiFi_LoRa_32_V3 fails

[MrSniffer]

Using the current files, RadioLib can not communicate with the SX1262 and initialize it. The problem appears in pins_arduino.h for the WiFi_LoRa_32_V3. It may also be wrong for other Heltec parts; I dunno.

The correct defs for the SPI GPIOs should be:

static const uint8_t SS = 8; static const uint8_t MOSI = 10; static const uint8_t MISO = 11; static const uint8_t SCK = 9;

N.B. SDA and SCL are not brought out on pins and probably should not be def'd.

[JJJS777]

Hello @MrSniffer, have you found a solution for this? Thanks in advance!

[MrSniffer]

I no longer rely on pins_arduino.h, so I don't know if Heltec has corrected it or not. I use my own .h files and #ifdef switches.

[MrSniffer]

BTW: The file which needs changing is pins_arduino.h in: C:\Users\yourname.platformio\packages\framework-arduinoespressif32\variants\heltec_WIFI_LoRa_32_V3

[JJJS777]

thanks for the fast replay. I'm new to this, so maybe im wrong^^

what im trying to do is to run the RadioLib SX126x Transmit and Receive Example to check if everything is working before i start my project. 

The radiolib ex says: 

SX1262 has the following connections:
NSS pin:   8
DIO1 pin:  14
NRST pin:  12
BUSY pin:  13
SX1262 radio = new Module(8, 14, 12, 13);

of course the pins a wrong so i search the right ones in the schematic Diagram, i found: 

nss pin: 8
rst pin: 12 //same as nrst?
dio1 pin: 14
sck pin: 9
miso pin: 11
mosi pin: 10
busy pin: 13

because the heltec board doesn’t work with the standard SPI setup one should use the extended Module class constructor in the format Module(cs, irq, rst, gpio, &spi, spiSettings), where spi is a reference to an instance of SPIClass, and spiSettings is an instance of class SPISettings.

Maybe this is also why the LoRa chip can’t be initialized?  Did u use or try the extended Module class constructor? I don't know how to deal with:

SPISettings spiSettings(2000000, MSBFIRST, SPI_MODE0);
SX1278 radio = new Module(cs, irq, rst, gpio, spi, spiSettings);

Maybe u have an idea or can share your thoughts on this (::

[MrSniffer]

Not clear what is causing your problem.

I initialize the V3 board with SX1262 radio = new Module(8, 14, 12, 13); Make sure that you have set static const uint8_t SS = 8; // NOTE: uses SS, not NSS! static const uint8_t MOSI = 10; static const uint8_t MISO = 11; static const uint8_t SCK = 9; in the correct pins_arduino.h file (location shown above.) And that you have the right variant in platformio.ini and other settings for making it an S3 chip, 8MB Flash, etc. I use these options: [env:WSL_SX1262] platform = espressif32 board = heltec_wireless_stick_lite board_upload.maximum_size = 1310720 board_upload.maximum_data_size = 327680 board_build.target = esp32s3 board_build.mcu = esp32s3 board_build.variant = heltec_WIFI_LoRa_32_V3 board_build.flash_size = 8MB board_upload.flash_size = 8MB board_build.partitions = config_8MB.csv // my custom partitions..... board_build.f_flash = 80000000L

I have never used the SPIclass approach so I can't comment on it.

[JJJS777]

I see - will try that config next. I also got it to work for me with a different board, this is my platformio config

[env:esp32dev]
platform = espressif32
board = esp32-s3-devkitc-1
framework = arduino
lib_deps = 
    olikraus/U8g2@^2.34.13
    jgromes/RadioLib@^5.6.0

In the Radiolib example SPI.begin does not get used. The pins u suggested worked for me.

#define ss 8
#define lora_mosi 10
#define lora_miso 11
#define lora_sck 9  
#define dio1 14
#define lora_nrst 12
#define lora_busy 13

SX1262 radio = new Module(lora_nss, dio1, lora_nrst, lora_busy);

void setup(){

Serial.begin(9600);
SPI.begin(lora_sck, lora_miso, lora_mosi, lora_nss);  

(...)

}

btw, the pins_arduino.h file got changed to the right pins a few days ago. Thanks for your help (::