Microntroller switching clock RTC56

This competition entry describes a microcontroller driven switching clock (housekeeper) with a 2x16- character LC Display, input keys and tw relay outputs. The clock has a built-in power supply and is contained in a compact plastic box (see photograph). The clock is capable of memorizing a program of up to 56 switching instants, which may be distributed over a full week. The programming memory may also be subdivided into multiple switching sequences.