Clock with LCD and PIC 18F4620 v. 2.03

Summary characteristics

• 24h time clock with LCD 4 lines x 20 characters.

• Line 1: day, month, and year, Line 2: day of the week (eg Mon for Monday), hours, minutes and seconds, Line 3: if any party or birthday and setup menus are displayed as a description of the various alarm mode. Line 4: the three alarm clocks with setting method or written "Snooze" with the display of the remaining time.

• Excellent precision, temperature compensated oscillator guaranteed DS32KHZ.

• Supported languages​​: Italian, English and German editable via button

• 3 independent alarms can be set: Once, Always, Week Mon-Fri, Week Mon-Sat with independent digital outputs for each clock alar, or only one digital output common to all alarm or buzzer.

• 10-minute snooze mode infinitely repeatable.

• Update daylight savings time / winter time settings automatically

• Storage and display up to 255 holidays and / or birthdays up to 3 events per day.

• Backlight brightness freely adjustable in 10 steps.

• B3V lithium battery backup for clock / calendar DS1306

• 9V battery backup for the system clock in the absence of the mains voltage, without backlight lcd and 1Hz led flashing at rate of 5 seconds.

• Timeout management buttons (see specifications)

Wiring diagram version 2.03 (27/08/2012) (diagram identical to the version 2.02)

PCB HW version 4.00 - Screen Printing (Author: Dr. Daniele Bucciarelli)

Rendering of the HW version 4.00