The PIR sensor need to connect it to digital port . Gnd , vcc,output to EZB digital port gnd,vcc and signal. Define your port as digital input and read the status . Your should find an example with the proper commands in the cloud or simply use your ARC to read the connected port. I did not understand your display question. If it is a voltmeter display circuit , you can use it to detect your battery simply by connecting the black to gnd and red to positive and should give the voltage value .

thanks that was exactly what I wanted