I'm having trouble using the XBee S3B Pro module with the STM32F446RET6

XBee & XBee Gateway
1

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Hi everyone,
I’m new to working with XBee modules. I’m trying to use an XBee S3B Pro module with the STM32F446RE Nucleo board. However, I couldn’t get two XBees to communicate with each other in this setup.

First, I configured both of my XBees using XCTU and successfully established communication between them via the console log in the application. Then, I moved on to the STM32 side and selected the USART settings according to the values I configured in XCTU. Despite this, and even though I attempted a very simple communication test, I was not able to get the two sides to communicate with each other.

I’m sharing my CubeIDE settings and part of my code below.

Thanks!

char txData[] = "HELLO XBee!\r\n";
while (1)
  {
	HAL_UART_Transmit(&huart1, (uint8_t*)txData, strlen(txData), 100);
	HAL_Delay(1000);
    /* USER CODE END WHILE */
    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}
2

What firmware version are you running on your XBee modules?

Are you connecting the XBee via an Arduino adapter board or are you trying to connect it directly?

3

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Here is the firmware version and the others that Im using.
Im connecting it directly to the board. Without any adapter.
Thanks for your response !

4

Try connecting the XBee to an XBee Arduino Shield. The XBee is a 3V device. Some of the Arduino ports are 5V and will damage the XBee if you connect them to it. Also the 3rd party Arduino Shields make the proper level shifting.