> For the complete documentation index, see [llms.txt](https://docs.holybro.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.holybro.com/autopilot/pixhawk-6c-mini/pixhawk-6c-mini-ports.md). # Pixhawk 6C Mini Ports

Pixhawk 6C Mini (Legacy)

Pixhawk 6C Mini Model A (Current)

{% hint style="info" %} Refer to this diagram for location of pin1. All connectors are JST GH 1.25 mm Pitch unless noted otherwise. {% endhint %} ### **Power1** | **Pin** | **Signal** | **Voltage** | | -------- | ------------------ | ----------- | | 1(red) | VDD5V\_BRICK1 (in) | +5V | | 2(black) | VDD5V\_BRICK1 (in) | +5V | | 3(black) | CURRENT1 | +3.3V | | 4(black) | VOLTAGE1 | +3.3V | | 5(black) | GND | GND | | 6(black) | GND | GND | ### **Telem 1 Port** | **Pin** | **Signal** | **Voltage** | | -------- | --------------- | ----------- | | 1(red) | VCC | +5V | | 2(black) | UART7\_TX(out) | +3.3V | | 3(black) | UART7\_RX(in) | +3.3V | | 4(black) | UART7\_CTS(in) | +3.3V | | 5(black) | UART7\_RTS(out) | +3.3V | | 6(black) | GND | GND | ### **Telem 2 Port** | **Pin** | **Signal** | **Voltage** | | -------- | --------------- | ----------- | | 1(red) | VCC | +5V | | 2(black) | UART5\_TX(out) | +3.3V | | 3(black) | UART5\_RX(in) | +3.3V | | 4(black) | UART5\_CTS(in) | +3.3V | | 5(black) | UART5\_RTS(out) | +3.3V | | 6(black) | GND | GND | ### **GPS 1 Port** | **Pin** | **Signal** | **Voltage** | | --------- | ------------------- | ----------- | | 1(red) | VCC | +5V | | 2 black) | TX1(out) | +3.3V | | 3(black) | RX1(in) | +3.3V | | 4(black) | SCL1 | +3.3V | | 5(black) | SDA1 | +3.3V | | 6(black) | SAFETY\_SWITCH | +3.3V | | 7(black) | SAFETY\_SWITCH\_LED | +3.3V | | 8(black) | IO\_VDD\_3V3 | +3.3V | | 9(black) | BUZZER- | 0\~5V | | 10(black) | GND | GND | ### **GPS2 Port** | **Pin** | **Signal** | **Voltage** | | -------- | -------------- | ----------- | | 1(red) | VCC | +5V | | 2 black) | UART8\_TX(out) | +3.3V | | 3(black) | UART8\_RX(in) | +3.3V | | 4(black) | I2C2\_SCL | +3.3V | | 5(black) | I2C2\_SDA | +3.3V | | 6(black) | GND | GND | ### **I2C Port** | **Pin** | **Signal** | **Voltage** | | -------- | ----------- | ----------- | | 1(red) | VCC | +5V | | 2(black) | I2C2\_SCL\* | +3.3V | | 3(black) | I2C2\_SDA\* | +3.3V | | 4(black) | GND | GND | ### **CAN1 & CAN2 Port** | **Pin** | **Signal** | **Voltage** | | -------- | ---------- | ----------- | | 1(red) | VCC | +5V | | 2(black) | CAN1\_H | +3.3V | | 3(black) | CAN1\_L | +3.3V | | 4(black) | GND | GND | ### **DSM RC Port** (JST-ZH 1.5mm) | **Pin** | **Signal** | **Voltage** | | --------- | ------------------ | ----------- | | 1(yellow) | VDD\_3V3\_SPEKTRUM | +3.3V | | 2(black) | GND | GND | | 3(gray) | DSM/SPEKTRUM IN | +3.3V | ### **PPM/SBUS RC Port (Legacy)** | **Pin** | **Signal** | **Voltage** | | --------- | ------------------ | ----------- | | 1(null) | VDD\_5V\_PPM\_SBUS | +5V | | 2(yellow) | PPM\&SBUS\_IN | +3.3V | | 3(null) | RSSI\_IN | +3.3V | | 4(red) | (NOT CONNECTED) | -- | | 5(black) | GND | GND | ### RSSI Port | | | | | --- | ------ | ------- | | Pin | Signal | Voltage | | 1 | VDD | +5V | | 2 | RSSI | +3.3V | | 3 | GND | GND | ### RC IN Port | | | | | --- | ------------ | ----- | | Pin | Signal | Volt | | S | SBUS/PPM in | +3.3V | | + | VDD\_5V \_RC | +5V | | - | GND | GND | ### **FMU PWM OUT Port (AUX OUT)** | **Pin** | **Signal** | **Volt** | | ------- | ----------- | ------------------- | | S | FMU\_CH1\~6 | +3.3V (5V with MOD) | | + | VDD\_SERVO | 0\~36V | | - | GND | GND | ### **I/O PWM OUT Port (MAIN OUT)** | **Pin** | **Signal** | **Volt** | | ------- | ---------- | ------------------- | | S | IO\_CH1\~8 | +3.3V (5V with MOD) | | + | VDD\_SERVO | 0\~36V | | - | GND | GND | ### **FMU Debug Port** (JST SH 1mm Pitch)
PinSignalVoltage
1(red)FMU_VDD_3V3+3.3V
2(black)FMU_USART3_TX+3.3V
3(black)FMU_USART3_RX+3.3V
4(black)FMU_SWD_IO+3.3V
5(black)FMU_SWD_CK+3.3V
6(black)GNDGND
--- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.holybro.com/autopilot/pixhawk-6c-mini/pixhawk-6c-mini-ports.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.