# Connectors and pinouts

### Board to board top connector

![](/files/nrwwscGB5cDY5T5eB1IR)

{% hint style="info" %}
DroneCore.Power B2B connector is supplied with VDD\_*MAIN\_SWITCHED which is physically VDD*\_*MAIN controlled by MCU on the board. If using complete DroneCore.Suite this supply is interconnected with VDD\_MAIN of the .Pilot board*
{% endhint %}

| pin | function            | pin | function            |
| --- | ------------------- | --- | ------------------- |
| 1   | reserved            | 41  | reserved            |
| 2   | reserved            | 42  | reserved            |
| 3   | UART1\_RX           | 43  | I2C1\_SDA           |
| 4   | UART1\_TX           | 44  | I2C1\_SCL           |
| 5   | CAN\_L\_2           | 45  | AUX\_BAT\_V         |
| 6   | CAN\_H\_2           | 46  | AUX\_BAT\_A         |
| 7   | 5V\_BACKUP          | 47  | 5V\_BACKUP          |
| 8   | 5V\_BACKUP          | 48  | 5V\_BACKUP          |
| 9   | 5V\_BACKUP          | 49  | 5V\_BACKUP          |
| 10  | 5V\_BACKUP          | 50  | 5V\_BACKUP          |
| 11  | 5V\_BACKUP          | 51  | 5V\_BACKUP          |
| 12  | 5V\_BACKUP          | 52  | 5V\_BACKUP          |
| 13  | GND                 | 53  | GND                 |
| 14  | GND                 | 54  | GND                 |
| 15  | GND                 | 55  | GND                 |
| 16  | GND                 | 56  | GND                 |
| 17  | GND                 | 57  | GND                 |
| 18  | GND                 | 58  | GND                 |
| 19  | GND                 | 59  | GND                 |
| 22  | GND                 | 60  | GND                 |
| 21  | GND                 | 61  | GND                 |
| 22  | GND                 | 62  | GND                 |
| 23  | GND                 | 63  | GND                 |
| 24  | GND                 | 64  | GND                 |
| 25  | GND                 | 65  | GND                 |
| 26  | GND                 | 66  | GND                 |
| 27  | GND                 | 67  | GND                 |
| 28  | 5V\_EXTERN          | 68  | 5V\_EXTERN          |
| 29  | 5V\_EXTERN          | 69  | 5V\_EXTERN          |
| 30  | 5V\_EXTERN          | 70  | 5V\_EXTERN          |
| 31  | 5V\_EXTERN          | 71  | 5V\_EXTERN          |
| 32  | 5V\_EXTERN          | 72  | 5V\_EXTERN          |
| 33  | 5V\_EXTERN          | 73  | 5V\_EXTERN          |
| 34  | 5V\_EXTERN          | 74  | 5V\_EXTERN          |
| 35  | VDD\_MAIN\_SWITCHED | 75  | VDD\_MAIN\_SWITCHED |
| 36  | VDD\_MAIN\_SWITCHED | 76  | VDD\_MAIN\_SWITCHED |
| 37  | VDD\_MAIN\_SWITCHED | 77  | VDD\_MAIN\_SWITCHED |
| 38  | VDD\_MAIN\_SWITCHED | 78  | VDD\_MAIN\_SWITCHED |
| 39  | VDD\_MAIN\_SWITCHED | 79  | VDD\_MAIN\_SWITCHED |
| 40  | VDD\_MAIN\_SWITCHED | 80  | VDD\_MAIN\_SWITCHED |

### Top side connectors

![](/files/LWwowjr0PspJGOsiCv89)

#### **CONFIG**

* matching connector JST GHR-03V-S

| pin | function |
| --- | -------- |
| 1   | GND      |
| 2   | NC       |
| 3   | COM      |

#### **EXT. BUTTON**

* matching connector JST GHR-03V-S

| pin | function |
| --- | -------- |
| 1   | 3V3      |
| 2   | BUTTON   |
| 3   | GND      |

#### **EXT. CAN**

* matching connector JST GHR-04V-S

{% hint style="info" %}
solder SB3(solder bridge) to power this connector with 5V
{% endhint %}

| pin | function |
| --- | -------- |
| 1   | GND      |
| 2   | CAN N    |
| 3   | CAN\_P   |
| 4   | 5V       |

#### **LED FRONT L, LED FRONT R, LED BACK L, LED BACK R, LED ADD**

* matching connector JST GHR-03V-S

{% hint style="warning" %}
5V rail is shared with the 12V/5V Power output connector, and it's current capacity is limited to 2.5A
{% endhint %}

| pin | function                               |
| --- | -------------------------------------- |
| 1   | 5V                                     |
| 2   | PWM (WS2812 control data signal input) |
| 3   | GND                                    |

### Bottom side connectors

![](/files/Km454HkrG9GVJixFlyOz)

#### **BAT CELLS**

* matching connector JST GHR-06V-S

| pin | function |
| --- | -------- |
| 1   | CELL6    |
| 2   | CELL5    |
| 3   | CELL4    |
| 4   | CELL3    |
| 5   | CELL2    |
| 6   | CELL1    |

#### **BMS I2C**

* matching connector JST GHR-04V-S

| pin | function |
| --- | -------- |
| 1   | GND      |
| 2   | I2C\_SDA |
| 3   | I2C\_SCL |
| 4   | 3V3      |

#### **12V/5V Power output**

* matching connector JST GHR-06V-S

{% hint style="warning" %}
12V rail has maximum current capacity 1A\
5V rail is shared with the supply for LED connectors, and it's current capacity is limited to 2.5A
{% endhint %}

| pin | function |
| --- | -------- |
| 1   | 12V      |
| 2   | 12V      |
| 3   | 5V\_LIM  |
| 4   | GND      |
| 5   | GND      |
| 6   | GND      |


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