Portenta H7 Lite cost-optimized Arduino Pro board drops WiFi, USB-C video output, NXP secure element

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Arduino Portenta H7 Lite is a cost-down version of Portenta H7 STM32H7 that shaves off a little over $30 of the Arduino Pro board by doing without a wireless module nor USB-C video output and opting for a lower cost Microchip ATECC608 secure element.

Arduino says the new board provides a cost-optimized solution for companies developing high-end industrial machinery, laboratory equipment, computer vision, PLCs, robotics controllers, and mission-critical devices.

Arduino Portenta H7 LiteArduino Portenta H7 Lite specifications (with differences in bold or strikethrough):

  • Microcontroller – STMicro STM32H747XI Cortex-M7 @ 480 MHz + M4 @ 200 MHz MCU  with 2MB dual-bank Flash memory, 1 MB RAM, Chrom-ART graphical hardware accelerator
  • System Memory – 2MB SDRAM (upgradeable up to 64MB)
  • Storage – 16MB QSPI NOR Flash (Upgradeable up to 128MB)
  • Connectivity
    • 2.4GHz WiFi 802.11b/g/n up to 65 Mbps and Bluetooth 5.1 BR/EDR/LE via Murata 1DX module
    • On-board 10/100M PHY
  • Video I/F – MIPI DSI & 8-bit camera interfaces via 80-pin expansion connector, DisplayPort over USB-C port
  • USB – 1x USB 2.0 Type-C port for power (PD) and programming, and DisplayPort output
  • I/Os
    • Arduino MKR headers with UART1, 6x Analog input pins, GPIO, PWM, SPI, I2C, Reset, 5V, 3.3V, and GND
    • 2x 80 pin high-density connectors
      • Storage – SD card signals
      • Connectivity – 10/100M Ethernet
      • Display – 2-lane MIPI DSI
      • Camera – 8-pin camera Interface up to 80 MHz
      • Audio – I2S, DMIC, SAI
      • USB – 2x USB 2.0 interfaces
      • Serial – 4x UART ports (2 with flow control), CAN bus (Tx/Rx)
      • 2x I2C, SPI
      • 8× ADC pins with 16-bit max. resolution
      • 2× 12-bit DAC (@ 1 MHz)
      • 6x GPIO and 10x PWM
      • Debug – SWD interface
    • 5-pin I2C ESLOV connector with 1.0mm pitch
    • 3.3V operating voltage
  • Security – Microchip ATECC608 (instead of NXP SE0502)
  • Misc – 22x timers and watchdogs
  • Power Supply
    • 5V via USB-C port or VIN pin
    • Support for 3.7V/700mAH minimum LiPo single-cell battery; integrated charger
    • Consumption – 2.95 μA in Standby mode (Backup SRAM OFF, RTC/LSE ON)
  • Temperature Range – -40 °C to +85 °C

Portenta H7 vs Portenta H7 LitePortenta H7 Lite has the same board layout as its older brother, and the main differences are the removal of several chips and modules including Murata 1DX module and antenna, the MIPI to USB-C/DisplayPort converter and corresponding level shifter, NXP Crypto chip (replaced by Microchip ATECC608 on the bottom of the board), plus some other passive components.

Arduino Portenta H7 Lite pinout diagram

The Portenta H7 Lite can be programmed either with the Arduino IDE or MicroPython, with support for Arduino sketches on top of the Arm Mbed OS, Native Mbed applications, MicroPython/JavaScript via an interpreter, and TensorFlow Lite for AI applications.

The latest Arduino Pro board can either be used as a standalone embedded microcontroller board, or as the module for a larger carrier board such as the Portenta Carrier thanks to two 80-pin board-to-board connectors.

Arduino Portenta H7 Lite 80-pin-connector microchip secure element
80-pin connectors and Microchip ATECC608

You can purchase Portenta H7 Lite now for $72 or 60 Euros on the Arduino store,  which compares to $103.40 for the original Portenta H7. Additional information may be found on the product page.

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