This chapter discusses the working of environment parameter monitoring
system with analog and digital sensor interfacing. The control of system is described
with the help of Scilab XCOS and Arduino I/O package. The section describes the
method to read analog sensor and digital sensor like MQ3 sensor, MQ6 sensor, LM35
sensor, LDR sensor, Proximity sensor and IR sensor.
Keywords: Arduino_1.1 package, LDR, LM35, MQ3, MQ6, Scilab.