> ## Documentation Index
> Fetch the complete documentation index at: https://docs.deneyapkart.org/llms.txt
> Use this file to discover all available pages before exploring further.

# External Connections (DYG)

## USB Type-C

| Pin No | Pin Name | Pin Function |
| :-: | :-: | - |
| 1 | VBUS | Main power supply line |
| 2 | DP | Differential data line (positive) |
| 3 | DN | Differential data line (negative) |
| 4 | CC1 | – |
| 5 | CC2 | – |
| 6 | GND | Main ground line |
| 7 | SHLD | Main ground line |

## Li-Po Battery Connector (JST-PH 2.0 mm 2-pin)

| Pin No | Pin Name | | Pin Function |
| - | - | - | - |
| 1 | VBAT | | Li-Po battery (+) terminal |
| 2 | GND | | Li-Po battery (–) terminal |

## I2C Communication Connector (JST-SH 1.0 mm 4-pin)

| Pin No | Pin Name | | Pin Function |
| - | - | - | - |
| 1 | GND | | Main ground line |
| 2 | 3V3 | | Regulator output (3.3V) |
| 3 | SDA | | Bidirectional data line |
| 4 | SCL | | Data line clock signal |


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