Multi-function Clock Kit

This clock kit features: options for zero, one, or two alarms; a temperature display option; time-keeping through power outages; a serial port; a MIDI style output; and 12/24 hour display option. The CK3 multi-function clock kit uses the DB-1 clock display board. The manual for the Multi-function Clock kit is available on the Data & Documentation page. See it on YouTube.

Specifications:

Mounting:

The CK3 clock board and DB1 display board were designed to fit in the following plastic cases: Simco 150X5, Pactec CM5-125 or Bud PC-11402.

Timebase:

A 32768 Hz watch crystal is the time reference.

The clock/calendar chip is a DS1305.

A super-capacitor backup keeps the DS1305 ticking for 8 days during a power outage.

Temperature:

The temperature sensor is a DS18S20.

Accurate within 0.5 C from 0 to 70 C.

Power:

Wall transformer supplying +9 volt DC at 100 mA.

2.1 mm barrel connector, center positive.