//************ Add to prj.conf file ******
CONFIG_SERIAL=y
CONFIG_UART_ASYNC_API=y
CONFIG_RESET_ON_FATAL_ERROR=n
CONFIG_LOG=y
CONFIG_THREAD_NAME=y
//***************add to the overlay file
&uart0{
    current-speed = <115200>;
};
&uart1{
current-speed = <9600>;
status = "okay";
};
&i2c0{
  status = "okay";
  clock-frequency = < 400 >;
};

//***************************************
static const struct device *wifi_uart;
static const struct device *bms_uart;
//*************************************
void init_i2c_master()
{
  dev_i2c = device_get_binding("I2C_0");
  if (dev_i2c == NULL) {
		printk("Failed to get I2C0 binding\n");
		return;        
	}
}
void wifi_uart_init(void)
{
        
	wifi_uart = device_get_binding("UART_0");
	if (wifi_uart == NULL) {
		printk("Failed to get UART0 binding\n");
		return;        
	}
}
void bms_uart_init(void)
{
        
	bms_uart = device_get_binding("UART_1");
	if (bms_uart == NULL) {
		printk("Failed to get UART1 binding\n");
		return;        
	}
}
void disable_uart1(){
        NRF_UARTE0->TASKS_STOPTX = 1;
        NRF_UARTE0->TASKS_STOPRX = 1;
}

void enable_uart1(){
        NRF_UARTE0->TASKS_STARTRX = 1;
        NRF_UARTE3->TASKS_STARTRX = 1;
}

void main()
{
	wifi_uart_init();
	bms_uart_init();
        disable_uart1();// disable UART1 to enable I2C0
        init_i2c_master();// I2C0 enable 
}