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Mounted hero of the R1 ECU Carrier with a black carrier and a black headerless Portenta H7; CAD visualization.

Mounted hero — CAD render

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Control & Communications

R1 ECU Carrier for Arduino Portenta H7

R1 Systems custom carrier for Arduino Portenta H7, designed for control and communications with 28 digital I/O channels, Ethernet, CAN, serial interfaces, and onboard power conversion.

Pricing on inquiry

Choose the carrier with a standard Arduino Portenta H7 (ABX00042), or the carrier board alone.

Describe your equipment, I/O loads, supply, communications and integration needs. Pricing and lead time will be confirmed by inquiry.

You’ll send your contact details with your cart. Product details and pricing are confirmed by our team.

Product details

The R1 ECU Carrier brings digital input sensing, load switching, communications, and power conversion together around an Arduino Portenta H7. Its design provides 28 external digital I/O channels: eight digital inputs, eight dedicated high-side outputs, and twelve programmable channels with high-side switching and divider-based digital state readback. Ethernet is routed to an RJ45 connector, USB D+/D− and VBUS to a USB-C connector, and CAN and RS-485/RS-232 circuitry to a shared communications header. A separate header provides SWD and reset connections. The design uses two 80-position Hirose DF40HC(3.5) connectors for the Portenta module and an external DC terminal input feeding onboard conversion circuitry. The integrated interfaces and switching circuitry make this a candidate for machine control, automation, and embedded equipment. The carrier has been fabricated, tested, and deployed. It is available to order, with pricing and lead time by inquiry. Choose the carrier + Portenta H7 package, selected by default, or the carrier board only for use with your own module. The default package includes the standard Arduino Portenta H7 (ABX00042), the module variant used in the tested and deployed hardware. The Portenta H7 is included only with the carrier + module package. The illustrated black finishes and headerless module are visualization choices; physical side-header configuration and final finishes remain to be confirmed. Designed by R1 Systems, with selected schematic circuits adapted from Arduino Portenta Machine Control (AKX00032 V1.1). Hardware design files are available under CC BY-SA 4.0, with upstream attribution and third-party notices included in the source archive. Downloads include editable Altium files, the schematic PDF, BOM, fabrication files and change history. Firmware is not included in the hardware source archive. Arduino® is a trademark of Arduino S.r.l.

Available to order. Pricing and lead time by inquiry.

Blueprint of the ECU carrier identifying USB-C, Ethernet, external power, digital I/O, CAN and serial, and Portenta module connectors. The optional Portenta H7 module is not shown.
ECU carrier connector and function referenceOpen full size: ECU carrier connector and function reference (opens in a new tab)
Design platform
Standard Arduino Portenta H7 (ABX00042), confirmed by the owner as the tested and deployed module variant. H7 Lite and H7 Lite Connected compatibility is not established.
Digital I/O architecture
28 external channels: 8 digital inputs, 8 dedicated high-side outputs, and 12 programmable channels.
Digital inputs — J8
8 channels on a 10-pin header, plus the +24V-labeled rail and ground. The supplied release design uses 680 kΩ / 100 kΩ input dividers and a TCA6424A I/O expander.
Dedicated outputs — J5
8 high-side switching channels on a 10-pin header, plus the +24V-labeled rail and ground. Switching circuitry uses TPS4H160-Q1 devices.
Programmable channels — J10
12 channels with TPS4H160-Q1 high-side switching and divider-based digital state readback through a TCA6424A I/O expander; 14-pin header with the +24V-labeled rail and ground.
Ethernet — J3
Portenta Ethernet interface routed to an Adam Tech MTJ-88AX1-FS-TSMT-P-L5-M398AC-WOT-KT RJ45 connector.
USB — J4
GCT USB4145-03-0230-C USB-C connector carrying D+/D− and VBUS from the Portenta USB_HS interface.
Bus connections — J6
10-pin CAN and serial header, with an NXP TJA1441 CAN transceiver and a MaxLinear SP335E RS-485/RS-232 transceiver.
Debug connections — J7
6-pin header with SWD clock/data, reset, and ground connections.
Module connectors — J1/J2
Two 80-position Hirose DF40HC(3.5)-80DS-0.4V(51) connectors specified in the schematic.
Power — J13
WAGO 2601-3102 external DC input terminal, with MPM3550 and LMR38025-Q1 onboard power conversion.
Board outline
93.98 × 71.12 mm; design dimensions corroborated by carrier CAD.
PCB construction
Four copper layers. Editable PCB data and fabrication files are included in the hardware source archive.
Hardware status
Fabricated, tested, and deployed; confirmed by the owner. Detailed test coverage and released operating ratings remain to be documented.
Package options
Carrier + standard Arduino Portenta H7 (ABX00042), selected by default; or carrier board only. Additional accessories and firmware deliverables remain to be specified.
Carrier design
R1 Systems. Selected schematic circuits adapted from Arduino Portenta Machine Control AKX00032 V1.1; upstream attribution retained in the release documentation.
Hardware source
CC BY-SA 4.0 hardware design release, including editable Altium files, schematic PDF, BOM and fabrication outputs. Third-party material is covered by its respective notices. Firmware is separate from this archive.

Resources

Documentation

  • R1 ECU Carrier — schematicpdf

    13-page schematic and release notes with R1 Systems carrier design credit, corrected input divider values and Arduino upstream attribution.

CAD files

  • R1 ECU Carrier — hardware design fileszip

    Editable Altium project, schematics, PCB and libraries, BOM, schematic PDF, supplied Gerber/drill files, license, attribution and change history. Release candidate dated October 5, 2026; validation status and third-party notices are included. Firmware is separate.