Daim Ntawv Qhia Tus Neeg Siv

P a g e | 3 www.holybro.com

PIN & Connector

Function

I/O PWM-IN

See table below for connection to Pixhawk 4

I/O PWM OUT 1: connect signal wire to ESC of motor 1 here

I/O PWM OUT 2: connect signal wire to ESC of motor 2 here

I/O PWM OUT 3: connect signal wire to ESC of motor 3 here

I/O PWM OUT 4: connect signal wire to ESC of motor 4 here

I/O PWM OUT 5: connect signal wire to ESC of motor 5 here

I/O PWM OUT 6: connect signal wire to ESC of motor 6 here

I/O PWM OUT 7: connect signal wire to ESC of motor 7 here

I/O PWM OUT 8: connect signal wire to ESC of motor 8 here

FMU PWM-IN

See table below for connection to Pixhawk 4

FMU PWM-OUT

If FMU PWM-IN is connected to Pixhawk 4, connect signal wires to

ESC or signal, +, - wires to servos here

CAP&ADC-OUT

Connect to CAP & ADC IN port of Pixhawk 4

CAP&ADC-IN

CAP & ADC input: See back of the board for pinouts

B+

Connect to ESC B+ to power the ESC

GND

Connect to ESC Ground

PWR1

5v output 3A, connect to Pixhawk 4 POWER 1

PWR2

5v output 3A, connect to Pixhawk 4 POWER 2

2~12S

Power Input, connect to 2~12S LiPo Battery

Note：Depending on your airframe type, refer to Airframe Reference to connect I/O PWM

OUT and FMU PWM OUT ports of Pixhawk 4 to PM board. MAIN outputs in PX4 firmware

map to I/O PWM OUT port of Pixhawk 4 whereas AUX outputs map to FMU PWM OUT

of Pixhawk 4. For example, MAIN1 maps to IO_CH1 pin of I/O PWM OUT and AUX1 maps

to FMU_CH1 pin of FMU PWM OUT. FMU PWM-IN of PM board is internally connected

to FMU PWM-OUT, which is used to drive servos (e.g. aileron, elevator, rudder, elevon,

gear, flaps, gimbal, steering). I/O PWM-IN of PM board is internally connected to M1-8,

which is used to drive motors (e.g. throttle in Plane, VTOL and Rover).