Socket Type I
I2C interface. Pins 8 and 9 are the dedicated I2C data (SDA) and clock (SCL) lines. Note that a mainboard should include pull-up resistors for these pins, in the region of 2.2K Ohms. Modules must not include their own pull-ups on these lines. In addition,
pins 3 and 6 are general-purpose input/outputs, with pin 3 supporting interrupt capabilities.
Pinout
| Pin 1 |
Pin 2 |
Pin 3 |
Pin 4 |
Pin 5 |
Pin 6 |
Pin 7 |
Pin 8 |
Pin 9 |
Pin 10 |
|
+3.3V |
+5V |
GPIO! |
[UN] |
[UN] |
GPIO |
[UN] |
SDA |
SCL |
GND |
Legend:
| GPIO |
A general-purpose digital input/output pin, operating at 3.3 Volts.
|
| ! |
Interrupt-capable and software pull-up capable GPIO (the pull-up is switchable and in the range of 10,000 to 100,000 ohms). |
|
[UN]
|
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.
|
| +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.
