I need to send 0xFF in HEX format from ESP8266 to a device in non_os SDK. I read through the uart.c, all I found were uart0_sendStr( ), uart_write_char( ) and uart0_tx_one_char( ). These functions are for sending char , how do I send hex data?
I need to send 0xFF in HEX format from ESP8266 to a device in non_os SDK. I read through the uart.c, all I found were uart0_sendStr( ), uart_write_char( ) and uart0_tx_one_char( ). These functions are for sending char , how do I send hex data?