SIM900 question ?
Dear Members,I want to test my SIM900 module,Do I need something more from this code ?printf("TEST SIM900\r\n"); //usart_pstr("AT\r\n"); target =0; //UART1 selected printf("AT/r"); HAL_UART_Receive(&huart1, (uint8_t *)&RxModem, 8,100); ...