Design a clock, timer or counter into your next project using our
pretty 4-digit seven-segment display. These bright crisp displays are
good for adding numeric output. Besides the four 7-segments, there are
decimal points on each digit and an extra wire for colon-dots in the
center (good for time-based projects).
These are ultra bright 150mcd! You can drive these with less current
to get the same brightness to save power, or crank them up to 20mA and
have them really bright.
These displays are multiplexed, common-cathode. What that means it
that you can use a 74HC595 or just 8 microcontroller pins if you can
spare them to control the 8 anodes (7-seg + decimal) at about ~15mA
each, and then connect NPN transistors to the cathodes to sink the
8*20mA = ~120mA maximum per digit. … more
|Product type||Electronics module|
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