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BackK rotary hex Real D Rotary switch, 4-bit encoding, 16 positions, Gray code K rotary bcd Complementary D Rotary switch, 4-bit encoding, 16 positions, Real code K rotary hex Gray D 1x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D Switch, dual pole double throw, separate symbols
- LCD LM16255 16x2 character http://www.datasheetlib.com/datasheet/259542/lm16255_sharp-electronics.html 7-Segment Display.
- Two keybeds in storage; decipher.