Dual Channel MIDI Foot Switch

7 Segment Display


Seven Segment Display

The seven segment display that I chose for this project is the SparkFun 7-Segment Blue LED (sku: COM-09191). The datasheet seems to be not quite right (although, as I found out after reverse-engineering it, the SparkFun page does correctly identify the pins). The image illustrates what I found the pinouts to be and how I connected them to the 74HC595 shift registers. There is probably a standard way to connect the display to the shift register pins, but the diagram shows what I chose. The byte maps listed work with this configuration.

Display
Character
Hex
Value
00x81
10xf3
20x49
30x61
40x33
50x25
60x05
70xf1
80x01
90x21
 0xff
-0x7f

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