✎ odroid-c1:hardware:expansion_connectors [ODROID Wiki]

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====== Expansion Connectors ======
The Odroid-c1 povides one 40-pin dual row expansion header "**J2**".
The location and pinout of these connectors is illustrated blew.\\ All signals on expansion headers are 3.3V except Analog input signal(1.8V).\\
Built-in pull-up/down resistor value is 60Kohm in the GPIOs.

===== J2 - 2x20 PINS =====

^  GPIO  ^  wPi  ^  Name      ^  Alternative/\\ Driving Capability  ^  Mode  ^  V  ^  PU/PD  ^  PIN  ^  PIN  ^  PU/PD  ^  V  ^  Mode  ^  Alternative/\\ Driving Capability  ^  Name      ^  wPi  ^  GPIO  ^
|  -     |  -    |  3.3V      |  -                                  |  -     |  -  |  -      |  1    |  2    |  -      |  -  |  -     |  -                                  |  5.0V      |  -    |  -     |
|  74    |  -    |  I2CA_SDA  |  -                                  |  IN    |  1  |  -      |  3    |  4    |  -      |  -  |  -     |  -                                  |  5.0V      |  -    |  -     |
|  75    |  -    |  I2CA_SCL  |  -                                  |  IN    |  1  |  -      |  5    |  6    |  -      |  -  |  -     |  -                                  |  GND       |  -    |  -     |
|  83    |  7    |  GPIOY.3   |  -/2mA                              |  IN    |  0  |  P/U    |  7    |  8    |  P/U    |  1  |  ALT1  |  -                                  |  GPIOX.16  |  -    |  113   |
|  -     |  -    |  GND       |  -                                  |  -     |  -  |  -      |  9    |  10   |  P/U    |  1  |  ALT1  |  -                                  |  GPIOX.17  |  -    |  114   |
|  88    |  0    |  GPIOY.8   |  -/3mA                              |  IN    |  1  |  P/U    |  11   |  12   |  P/U    |  0  |  IN    |  -/2mA                              |  GPIOY.7   |  1    |  87    |
|  116   |  2    |  GPIOX.19  |  -/2mA                              |  IN    |  1  |  P/U    |  13   |  14   |  -      |  -  |  -     |  -                                  |  GND       |  -    |  -     |
|  115   |  3    |  GPIOX.18  |  -/2mA                              |  IN    |  0  |  P/D    |  15   |  16   |  P/U    |  1  |  IN    |  -/3mA                              |  GPIOX.7   |  4    |  104   |
|  -     |  -    |  3.3V      |  -                                  |  -     |  -  |  -      |  17   |  18   |  P/U    |  1  |  IN    |  -/3mA                              |  GPIOX.5   |  5    |  102   |
|  107   |  12   |  GPIOX.10  |  PWM1/2mA                           |  IN    |  1  |  P/U    |  19   |  20   |  -      |  -  |  -     |  -                                  |  GND       |  -    |  -     |
|  106   |  13   |  GPIOX.9   |  -/3mA                              |  IN    |  1  |  P/U    |  21   |  22   |  P/U    |  1  |  IN    |  -/3mA                              |  GPIOX.6   |  6    |  103   |
|  105   |  14   |  GPIOX.8   |  -/4mA                              |  IN    |  1  |  P/U    |  23   |  24   |  P/D    |  0  |  IN    |  -/2mA                              |  GPIOX.20  |  10   |  117   |
|  -     |  -    |  GND       |  -                                  |  -     |  -  |  -      |  25   |  26   |  P/U    |  1  |  IN    |  -                                  |  GPIOX.21  |  11   |  118   |
|  76    |  -    |  I2CB_SDA  |  -                                  |  IN    |  1  |  -      |  27   |  28   |  -      |  1  |  IN    |  -                                  |  I2CB_SCL  |  -    |  77    |
|  101   |  21   |  GPIOX.4   |  -/3mA                              |  IN    |  1  |  P/U    |  29   |  30   |  -      |  -  |  -     |  -                                  |  GND       |  -    |  -     |
|  100   |  22   |  GPIOX.3   |  -/3mA                              |  IN    |  1  |  P/U    |  31   |  32   |  P/U    |  1  |  IN    |  -/3mA                              |  GPIOX.2   |  26   |  99    |
|  108   |  23   |  GPIOX.11  |  PWM0/3mA                           |  IN    |  0  |  P/D    |  33   |  34   |  -      |  -  |  -     |  -                                  |  GND       |  -    |  -     |
|  97    |  24   |  GPIOX.0   |  -/3mA                              |  IN    |  1  |  P/U    |  35   |  36   |  P/U    |  1  |  IN    |  -/3mA                              |  GPIOX.1   |  27   |  98    |
|  -     |  -    |  ADC.AIN0  |  10bit ADC#1(0~1.8V)                |  -     |  -  |  -      |  37   |  38   |  -      |  -  |  -     |  Output!                            |  1.8V REF  |  -    |  -     |
|  -     |  -    |  GND       |  -                                  |  -     |  -  |  -      |  39   |  40   |  -      |  -  |  -     |  10bit ADC#0 (0~1.8V)               |  ADC.AIN1  |  -    |  -     |

{{:odroid-c1:hardware:c1_j2.png|}}

===== J7 - 1x7 PINS =====

**This I2S expansion connector exists only on the C1+**
^  GPIO ^  Name      ^  Alternative/\\ Driving Capability  ^ Mode  ^  V  ^ PU/PD  ^ PIN  ^
|  -    |  GND       | -                                   |  -    |  -  |  -     |  1   |
|  6    |  GPIOAO.6  | I2S Data Input/2mA                  |  IN   |  0  |  -     |  2   |
|  -    |  5.0V      | -                                   |  -    |  -  |  -     |  3   |
|  8    |  GPIOAO.8  | I2S MCLK/2mA                        | ALT2  |  0  |    P/U |  4   |
|  10   | GPIOAO.10  | I2S LRCLK/2mA                       | ALT2  |  0  |    P/U |  5   |
|  9    |  GPIOAO.9  | I2S SCLK/2mA                        | ALT2  |  0  |    P/U |  6   |
|  11   | GPIOAO.11  | I2S Data output/2mA                 | ALT2  |  0  |    P/U |  7   |


{{:odroid-c1:hardware:c1_j7.png|}}