Apple-2-HW/unified_retro_keyboard
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hardware/interface-osi/README.md
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* OSI Compatible interface * OSI Compatible interface
An interface for OSI computers that is compatible with the OSI 542C keyboard, including sound circuits. An interface for OSI computers that is compatible with the OSI 542C keyboard, including sound circuits.
This interface also permits substitution of a soft-shiftlock function using This interface also permits substitution of a soft-shiftlock function using
@ -6,6 +7,8 @@ a regular momentary keyswitch, instead of the hard-to-fine latchine keyswitch.
An LED is provided to indicate SHIFT LOCK status. This interface mates with An LED is provided to indicate SHIFT LOCK status. This interface mates with
the Classic ASCII keyboard, configured with the OSI keycaps. the Classic ASCII keyboard, configured with the OSI keycaps.
<img alt="Assembly Rendering" src="images/pcb-render.png" height=50% width=50%>
**Construction Notes: **Construction Notes:
1. If a diode per key is installed on the keyboard, then omit diodes D1-D8 and install D18. 1. If a diode per key is installed on the keyboard, then omit diodes D1-D8 and install D18.