# Board components and connectors

This chapter identifies the board connectors and featured components. For the functional-block description of the hardware (power stage, gate driver, BEMF network, and so on), see the [Hardware Architecture and Reference Design application note](../application-notes/hardware-overview/index.md).

## Kit featured components

The following figure identifies the important connectors on the board.



```{image} resources/board-callouts.png
:alt: MR-ESC-AM32 board connectors
:width: 480px
:align: center
```



MR-ESC-AM32 board connectors

| Number | Description |
|--------|-------------|
| 1 | BLDC motor phase — 3.5 mm bullet female connectors |
| 2 | Battery power leads — 3.5 mm bullet male (2) |
| 3 | Dupont-style 3-pin RC-PWM/DSHOT connector |

The table below provides additional detail on the board interfaces.

| Part identifier | Connector type | Description |
|-----------------|----------------|-------------|
| Motor phase A | 3.5 mm bullet connector | Motor phase A |
| Motor phase B | 3.5 mm bullet connector | Motor phase B |
| Motor phase C | 3.5 mm bullet connector | Motor phase C |
| Debug | JST-GH 6-pin | SWD debug connector (modified Pixhawk Debug Mini) |
| VBAT+ | Red wire / solder pad | Battery + (2S–6S) |
| VBAT- | Black wire / solder pad | Battery - |
| G | 3-pin Dupont / black | GND |
| S | 3-pin Dupont / white | Signal pin used for RC-PWM, DShot, BDShot, and configurator |
| TX | Solder pad | UART telemetry data |
| RGB LED | Solder pads | Addressable LED solder pads |



```{image} resources/board-featured-components.png
:alt: MR-ESC-AM32 board featured components
:width: 480px
:align: center
```



MR-ESC-AM32 board featured components

## LEDs

The board includes one onboard RGB addressable LED at U5. It can be used to indicate vehicle status or orientation, depending on how the flight-control software uses the AM32 LED-control API. Additional individually addressable RGB LEDs can be connected to the expansion pads to support linear patterns or LED arrays. U5 is an American Bright BB-2020BGR-TRB LED that uses APA102/SK9822-style programming.

## Switches

The board includes one switch labeled ISP. It connects to MCXA133 GPIO `P3_29` and is not currently used by the AM32 software.

## Schematic, board layout, and bill of materials

The schematic, board layout, and bill of materials for the MR-ESC-AM32 board are available on the NXP product page.