en:c_hardware_i2c [ODROID Wiki]

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====== I2C ======
This page introduces how you can interface your I2C devices to **ODROID-C**.
===== H/W connection =====

**I2CA (/dev/i2c-1)**
^Pin Number^Net Name^Export Number^^
^:::^:::^C0/C1/C1+^C2^
|3|I2CA.SDA|74|205|
|5|I2CA.SCL|75|206|

**I2CB (/dev/i2c-2)**
^Pin Number^Net Name^Export Number^^
^:::^:::^C0/C1/C1+^C2^
|27|I2CB.SDA|76|207|
|28|I2CB.SCL|77|208|
===== Loading I2C driver =====
Dedicated pins for I2C are configured for GPIO, these pins can be configured as I2C bus while change the pin configuration. In order to change the configuration, you must load the driver.
<code>
$ modprobe aml_i2c
</code>
If you have to load the driver every time whenever your **ODROID-C1** starts, simply you can register the driver into **/etc/modules**.
<code>
$ sudo echo "aml_i2c" >> /etc/modules
</code>
This adds one line at end of the file, /etc/modules, and load the driver on boot automatically.
===== Tutorials =====
[[wb_c_16x2lcd|{{:en:weather_board:weatherboard16x2.jpg?150|}}]] [[wb_c|{{:en:weather_board:wb_odroidc5.png?135|}}]]
  * [[ wb_c_16x2lcd | WEATHER-BOARD with 16x2 LCD on ODROID-C ]]
  * [[ wb_c | WEATHER-BOARD on ODROID-C ]]