Abstract: The present invention describes a rain sensor that counts water drops with a microcontroller. After a predetermined threshold of water drops have been counted, the rain sensor interrupts an irrigation schedule of an irrigation controller.

Abstract: A method, system and computer program product for private information exchange in smart card commerce is disclosed. The method includes, in response to determining that an item of biometric data received on a biometric reader corresponds to an authorized user, unlocking a communication channel on a communication port, exchanging public keys between the user and authorized point of sale, receiving an information request from an external point of sale machine across the communication channel, decrypting an information request and parsing a data token.

Abstract: A free-standing field irrigation controller is selectively programmed by a personal computer over a radio link. The computer is equipped with software that displays a screen with seven horizontal time bands representing one day each, arranged vertically to display one week's time. Box icons representing watering settings for a plurality of zones can be dragged and dropped onto the time bands, copied and modified thereon as desired, to form a freely selectable watering schedule. Other selectable screens allow odd-days or even-days watering, sophisticated interval watering, global watering time adjustment, and a variety of manual functions. Selectable portions of the main screen can be enlarged as desired. Based on the selected schedule, the computer calculates and displays the monthly cost of water. Selected zones can be temporarily disabled to deal with weather or maintenance issues. A handheld global shut-off and manual watering remote and/or a separate radio-linked computer may be used in field maintenance.