Maxsensor report
It took me three hours to figure out the Maxsensor, becuase all the out put from the board are really confusing. I finally found the instruction in the Q&A section on Maxbotic offical website.
I am getting analog input range from 10 to about 520, but it is not steady enough. sometimes it jump to 510 from 300. There is a way that I can reduce the noise. For now I am satisfied to test what I have got to put the value into the processing and make something happen on the screen. Maybe later pretty soon I will need to build circuit that will scale down the output value.
[ The analog output is scaled. It outputs 0 to 2.55 volts and scales to 10mV per inch. To reduce the noise on the output, a 0.1uF capacitor can be placed between the analog pin on the microcontroller and then a 10K ohm resistor in series with the analog voltage output from the sensor to that capacitor. The analog output needs to be buffered by the op amp in the circuit. ]
a good wiki report from itp student Rebecca Bray.