belyalov / stm32-hal-libraries Goto Github PK

Hello, I would like to use your library for SX1276. But I have a problem with verifying the version of the module. I get an answer of 0 and if I switch the MISO with MOSI I will get 255. I have already tried a different connections and I use reset LoRa modul using the RST pin, but still without results.

Hi,

I am using B-L072Z-LRWAN1 kit including CMWX1ZZABZ-091 module. You mentioned that;

// SX1276 compatible module connected to SPI1, NSS pin connected to GPIO with label LORA_NSS uint8_t res = lora_init(&lora, &hspi1, LORA_NSS_GPIO_Port, LORA_NSS_Pin, LORA_BASE_FREQUENCY_US); if (res != LORA_OK) { // Initialization failed }

But after I've created a new project with CubeMx for B-L072Z-LRWAN1 kit it shows Hardware NSS Signal is disable by default and when I check code it shown as SPI_NSS_SOFT. at init struct.

So what should I do? I am a bit confused about that.

Thank you.

Hello,

I tried your SHTC3 library, it works well with STM32, but I decided to transfer the code to Raspberry PICO. So basically the only thing we need to replace is the HAL functions with Raspberry PICO C/C++ SDK functions: i2c_write_blocking and i2c_read_blocking

I have done this with other libraries and all work, but for some unknown weird reason, this library (SHTC3) does not work, I mean the sensor does not respond, no temp, no ID, no humidity, and all are returned 0. C code is C code for whatever hardware, but why does this happen?! do you have any idea?

Hello. I use your library to test SX1276 LoRa modules on STM32L031. It seems to be working fine, however I have got one question saving current consumption. For my particular application, when the sender sends a message, I want it to enter deep sleep. I use the following code for sending a message:

	   uint8_t res2 = lora_send_packet(&lora, (uint8_t *)"test", 4);
	   if (res2 != LORA_OK) {
			printf("send failed \n");
	   }
	   else{
		   printf("send sucessfull \n");
		   //enter sleep mode
	   }

Is there a function that I need to call to put the SX1276 into low power mode or it goes to low power mode automatically after sending a message? I would very much appreciate clarification. Thanks in advance.

Hello, I am trying to use your lora sx1276 library but when trying to compile the program it tells me that the initialization variables are not declared, could it be that I need to add something else?
I would greatly appreciate your help

I tried the code, when I see the res value it gives me 0 when everything is configured, but I can't transmit or receive. My module is rfm95 (sx1276). I configured SPI and NSS as output and DIO_0 as interrupt. Does the module reset have to remain unplugged?
if I leave the following line of code I don't read res:
uint8_t res = lora_send_packet(&lora, (uint8_t *)"test", 4);
if (res != LORA_OK) {
// Send failed
}

if I put res == 0
instead I continue but I don't transmit

Hey,

I'm currently using your Si7021 driver implementation on a STM32F4Discovery and I was wondering why, to measure humidity and temperature, you were using

res = HAL_I2C_Master_Receive(hi2c, SI7021_ADDRESS_READ, si7021_buf, 3, 100);

Why are you reading 3 bytes ? Are you reading the checksum too ?
The doc says the checksum is optional, so 2 bytes should work as well right ?

Thanks.

Thanks for making this library available, saved me a lot of time.

However, when using this library I did notice there was a mistake in the lora_set_signal_bandwidth function.

The new bandwidth value is OR'd with the old value instead of replacing it. You can see the line I replaced it with below, it seems to work well.

with lora sx1276 when pin nss is connected it doesn't start the code, when i disconect it the serial monitor start printing

Hi!
Your code is great. Did you ever tried to use it with newer SX1268 modules? I'm not sure if I pick one of these SPI modules or the UART version which are easier to work with, since SX12xx have more output power.