CCS/MSP430G2553: GPIO output problem on MSP430

Tool/software: Code Composer Studio

Hi,

I've connected an FMCW radar (AWR1443 BOOST) to an MSP430. The radar's is used for proximity sensing and sends a high signal (3.3V) to the msp430 to be read. The MSP430 turns off an LED when an object in 0.5m from the radar. The LED stays on otherwise. However, I was expecting the output of the GPIO pin of the MSP430 to be 3.3V when it's high. However, it's outputting a square wave with a max voltage of around 5V instead. I'm not sure why this is because without the radar connected, the GPIO outputs 3.3V as expected.

int main(void)
{
	WDTCTL = WDTPW | WDTHOLD;	// stop watchdog timer
	
	P1DIR &=~ BIT1; // read from radar
    P1DIR |= BIT2; // output to LED circuit

    while(1){
        if((P1IN && BIT1) == 0){
            P1OUT |= BIT2; // turn on LED
        }
        else if((P1IN && BIT1) == 1)
        {
            P1OUT &=~ BIT2; // turn off LED

        }

}

Any help would be appreciated