DESCRIPTION: Applied Sensors (originally Earth Measurements) was written by Dr. Tracy Allen of Electronically Monitored Ecosystems in Berkeley, California. The 201-page text is the most complete primer on BASIC Stamp program structuring, sensor calibration, and serial communication in the Stamps in Class series. Now as Applied Sensors, the text has received upgraded schematics, drawings, and source code support for PBASIC 2.5 (as supported in the BASIC Stamp Windows Editor v2.0 (and above).

The aforementioned concepts are taught using an earth science theme with emphasis on resistor/capacitor networks, serial communication, and data logging. The final Applied Sensors experiment (which is a favorite of many customers) consists of an environmental data logger that measures air temperature, water temperature, light levels, and electrical conductivity of water. Two stainless steel screws are used to determine the water level in a cup, and the pump is controlled to maintain the water level. A speaker provides Morse code sound feedback of each sensor parameter as it is logged to the BASIC Stamp's EEPROM. The BASIC Stamp's debug command is used to receive all of the data into a PC where it may be pasted into a spreadsheet or other program for analysis.