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door-access

4 Treffer, Zuletzt geändert: vor 10 Jahren

berry-pi-rfid-tag-reader/ Mit USB-Anschluss und Piface I/O-Expander: * http://svdgraaf.nl/2013/11/1... sptension.html * http://blog.gegg.us/2013/03/4-different-methods-of-1-wire-access-on-raspberry-pi/ ... (B) - Yellow goes to VDD (C) -> 3,3V => this is different from the normal IButton, that doesn't requi... 0v. Even 0.5v is enough to keep the LED going... If I measure between the GND of the AQ outputs, it's

brandmelder

1 Treffer, Zuletzt geändert: vor 10 Jahren

xperimente * http://www.instructables.com/id/Modify-a-6-EUR-smoke-detector-for-use-with-microco/all/