Hi,
I am using HC-05 bluetooth module and STM32F407. I have to enter AT Command Mode and send some AT Commands. Normally, i do it pressing button on the module. But i have to enter AT Command Mode using only software. I can enter AT Command Mode, but i can't send any AT Commands to module. I tried to change the name of the module but it didn't work.
Here is my try. Where is my mistake?
/* USER CODE BEGIN PV */ uint8_t data[50]; /* USER CODE END PV */ static void MX_USART3_UART_Init(void) { sprintf(data,"AT+NAME=charles \n\r"); HAL_UART_Transmit(&huart3, (uint8_t *)data, strlen(data), 2000); }
Westonsupermare Pier said:If you leave the output side connected to the USB-to-CMOS Serial adapter you could watch on the PC.
If you have two USB-to-CMOS Serial adapters (or a double adaptor) you could monitor both what the microcontroller sends and what the radio replies:
https://www.avrfreaks.net/comment/2306116#comment-2306116