UART/PX4IO Expander Board - S.bus RC with 8 Channels of PWM Output

Use this expansion board to enable the use of S.bus based RC receivers. With 8 PWM out channels, you have flexibility to control servos for gimbal control, or use the PWM signals to drive up to 8 single channel ESCs! Whatever your project, this expansion board unlocks additional capabilities and enables PWM control.

Firmware Upgrade for  and later: If you have a VOXL 2 I/O board purchased before 2024 which worked with SDK 0.9.5 or older, you will need an updated firmware release for newer SDK support. We offer a free trade-in program to upgrade the firmware. Reach out at - If you send us your address, and the number of VOXL 2 I/O unites you have, we will send you new units for free. Once you have completed your upgrade, just send us back your old devices

Ready to Use Development Tools 

Product Specifications

• 8 channels of PWM out
• S.bus RC support via UART
• Interfaces with VOXL2 via UART

Software Specifications

• See link to firmware below

Technical Details

What's Included

Board Only Kit (MDK-M0065-00)

• (1) MCCA-M0065-1 UART/PX4IO Expander Board

Dev Kit with Host UART and RC Cables (

MDK-M0065-01)

• (1) MCCA-M0065-1 UART/PX4IO Expander Board
• (1) VOXL2 to VOXL2 IO UART Cable (MCBL-00061-1)
• (1) SBus and (1) Spektrum RC cables (MCBL-00021-1 and MCBL-00005-1)

Dev Kit with Host UART and RC Cables and PWM Breakout (

MDK-M0065-02)

• (1) MCCA-M0065-1 UART/PX4IO Expander Board
• (1) VOXL2 to VOXL2 IO UART Cable (MCBL-00061-1)
• (1) SBus and (1) Spektrum RC cables (MCBL-00021-1 and MCBL-00005-1)
• (1) 

• PWM breakout Board and (1) PWM cable (MCCA-M0022, MCBL-00004)

ModalAI Part Numbers

Compatible Products

Requirements to Get Started

• Intended for developers and technical users, please take caution and read thoroughly before purchasing
• Users should be familiar with embedded development (C, python) to be comfortable on this platform

HS Code: 8542.31