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ben-blinkenlights/ext/README

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2010-11-02 17:17:20 +02:00
THIS IS A DRAFT AND COMPLETELY UNTESTED.
The extension board is meant to connect to a 50 mil ribbon cable,
which in turn connects to a connector for a 7x2 100 mil header.
To reduce crosstalk, signals are always separated by ground. We
cannot use VDD for crosstalk suppression, because the device may
be self-powered and VDD would thus be disabled.
If the connector is reversed, VDD is shorted to GND.