Arduino and Max MSP Talking

So I have also been experimenting with Arduino and Max MSP talking - I have got a light working with a code but I need to wait for my sensor to fully implement this.  I will be using Max MSP to run my whole experiment and the clock will be run by Arduino sensor input, so I need to explore this further but intially it can be done and I do know how to work it - I may do some work with a light sensor by Thursday or Monday - just to get values and work with them with my clock.