The GLMDPCB motion detector board is a double sided etched, screened and drilled printed circuit board designed for the GLMDA motion detector circuit shown in the schematic below. All or part of the circuit can be built. For some robotic and other special applications, only the amplifier and comparator circuits may be needed. The PIR325 sensor can
be bought from Glolab. All other parts are available from distributors such as Mouser Electronics, Inc. , 1-800-346-6873, and from Digi-Key Corporation, 1-800-344-4539, .