DB1 - CLOCK AND NUMERIC LED DISPLAY BOARDS

DB1-CLOCK

DB1 Display Options

The DB1 comes in two varieties based on the LED display module installed on the board.
The DB1-CLOCK display has four 7-segment characters and one colon. It is perfect for all sorts of time displays.
The DB1-NUMERIC display has four 7-segment characters, each with a right-hand decimal point. It is just the thing for measurement readouts.
If your application doesn't require a colon or decimal point then either DB1 model should work.

The DB1 is based on the MC14489 LED display driver integrated circuit. It is compatible with the Motorola SPI and National MICROWIRE serial interfaces. A software "bit-banging" interface can easily be written for any microcontroller that doesn't have one of these special serial ports.

As shown by the examples at the right the MC14489 can display the full range of hexadecimal characters plus many special characters - see the MC14489 data sheet on the Data & Documentation page for full details. Four annunciator LEDs are located near the corners of the LED display. These are handy for indicating things like alarms, data ranges, overflows, low battery, etc.


CUSTOMERS' PROJECTS USING THE DB1
An internet clock.
A digital thermometer.
Please let us know about your project!


SPECIFICATIONS

PRICES
Specify DB1-CLOCK or DB1-NUMERIC when ordering.
Assembled and tested
Price = $17.25 Quantity discounts available!
Full kit
Price = $13.00
All products include:
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