Arduino shows Portenta C33 high performance IoT module

Arduino shows Portenta C33 high performance IoT module

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By Nick Flaherty

Open source hardware pioneer Arduino has teamed up with backer Renesas to launch a System-on-Module (SoM) based on the RA6M5 ARM Cortex-M33 microcontroller.

The Portenta C33 is the latest addition to Arduino’s Portenta family, which is specifically designed to provide a complete and scalable platform for edge AI devices, IoT gateways, remote control systems, fleet management and process tracking and is being shown at Embedded World (EW2023) in Germany this week for the first time.

The Portenta C33 SoM provides professional developers with a production-ready IoT platform combining the familiar Arduino environment with other high-level languages like MicroPython.

The module integrates Wi-Fi and Bluetooth Low Energy connectivity alongside with a wide variety of peripheral interfaces, including CAN, SAI, SPI and I2C as well as integrated Secure Crypto Engine 9 (SCE9) with secure key storage ensures industrial-grade security at the hardware level and the ability to perform over-the-air firmware updates with Arduino IoT Cloud or other third-party services.

The module form factor is compatible with Portenta and MKR ranges and features castellated pins – friendly for automated SMT assembly on application specific carrier boards.

Portenta C33 can be at the heart of industrial IoT gateways, connecting devices, machines and sensors to collect operation data in real time, and display them on a custom Arduino IoT Cloud dashboard or third-party cloud platforms with end-to-end secure data encryption. This is also offered by the embedded RA6M5 with ARM TrustZone and Renesas’ certified SCE9.

For example, data on overall equipment efficiency (OEE) and overall process effectiveness (OPE) can be tracked, monitored and processed; or smart systems can detect anomalies, alert operators about unplanned downtimes, or provide the information for predictive maintenance that ultimately improves production rates. Portenta C33 can also be easily paired with Nicla modules’ smart sensors, to carry out quality assurance controls right on the production line, catching any defects as early as possible.

“We are committed to making Industrial IoT more accessible for a wide range of applications.  Being part of the robust Arduino ecosystem is an important step toward achieving that goal,” said Chris Allexandre, Senior Vice President, CSMO and Head of the Global Sales and Marketing Unit at Renesas, which recently backed Arduino with $10m to boost the industrial product line.

“The SCE9 security on the Renesas devices has been certified according to CAVP, in conjunction with the existing SESIP1 and PSA Certified Level 2, which is ideal for the intended IoT environment.”

In factories, offices and residential buildings, Portenta C33 can be deployed to monitor gas, water, electricity and any other utility consumption through a single system. Data can be collected, displayed and processed to pinpoint usage trends in Arduino IoT Cloud charts, providing an overall image for energy management optimization and cost reduction.

“We are excited to launch Portenta C33, which combines the power and efficiency of the ARM Cortex- M33 with the flexibility and ease of use of the Arduino ecosystem made of thousands of libraries and tools to support a vast array of applications” said Fabio Violante, CEO at Arduino.

“This new system-on-module will bridge the gap between prototyping and deployment at scale, reducing the time to market by orders of magnitude. The cost-effective nature of this product unleashes a tremendous opportunity for IoT customers”.

Portenta C33 will be commercially available by the end of Q2 2023 at Arduino’s online store and authorized distributors. To join the Portenta C33 waiting list visit

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