PIR with Light Sensor

Simple PIR motion detector with light sensor & delay timer.The circuit uses a PIR module ( about £1.00 from ebay, an LDR (about 25p, again from ebay & an Arduino mini pro. Upon reset, the ambient light is measured and, for test purposes only, the resulting atod output is shown on the serial monitor....

By: samsungite



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from Instructables: exploring - technology http://www.instructables.com/id/PIR-with-Light-Sensor/