Working with the HDSP 2111
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May 302010
During Hackday I worked on a display for the Stabby ID.
I have six or so HDSP 2111 units lying around. They also come in green and red led models.
Read on for Schematic and Demo Arduino Source
Requirements:
1 HDSP 211x LED Display
1 SN74LS595N Low Current Shift Register
1 Arduino compatible board
1 current reference capacitor ( just for safety )
Schematic:
Source:
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[…] at Evil Mad Scientist Laboratories, they’ve posted a quick breakdown of how to interface those neat little HDSP LED displays with an Arduino. This specific instance is for Mr. Stabby. Source code and schematic are […]
[…] HDSP211x alphanumeric displays in the LED bin at NYCR and loved the StarTAC style. He had previously written about driving them, but using an Arduino and a shift register on a breadboard was a bit large for my goal of making it […]