Socket Type D

A USB device interface for the mainboard to connect to a PC, usually for programming. Pins 4 and 5 are used as the dedicated USB data pins (D- and D+). In addition, pins 3, 6 and 7 are general-purpose input/outputs, with pin 3 supporting interrupt capabilities.


Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Pin 10


D USB signal pin.

A general-purpose digital input/output pin, operating at 3.3 Volts.


Modules must not connect to this pin if using this socket type. Mainboards can support multiple socket types on one socket, as long as individual pin functionalities overlap in a compatible manner, so that a pin from one socket type can overlap with a [UN] pin of another.

! Interrupt-capable and software pull-up capable GPIO (the pull-up is switchable and in the range of 10,000 to 100,000 ohms).
+3.3V Connection to the +3.3V power net.
+5V Connection to the +5V power net.
GND Connection the power ground net.

Connector Pin Numbering

Pins numbers for the male 10-pin connector standard Gadgeteer socket, as seen from above. In most cases, the ribbon cables will have the pin 1 conductor marked in red.


Last edited Nov 10, 2011 at 4:03 PM by nvillar, version 4


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