SparkFun Himax WE-I Plus EVB Endpoint AI Development Board

The Himax WE-I Plus EVB Endpoint AI Development Board is the perfect solution for just that; a computer/machine vision or AI endpoint.

In collaboration with Google TensorFlow Lite for Microcontrollers framework and Synopsys embARC MLI library, the Himax WE-I Plus EVB provides a complete development environment to deploy all TensorFlow Lite for Microcontrollers examples; �Person detection�, �Micro speech�, and �Magic wand�, for �Vision�, �Voice� and �Vibration� applications.

The WE-I Plus EVB uses a built-in WE-I Plus ASIC (HX6537-A) with embedded Synopsys ARC EM9D DSP running at 400MHz and 2MB internal SRAM and 2MB Flash for larger Neuro Network model deployment. To support �Vision� applications, this board features a Himax HM0360 ultra-low-power VGA mono camera. The latency time for 250KB TensorFlow Lite for Microcontrollers �Person detection� example is only 40ms. To support �Voice� applications, this board features two MEMS microphones. The latency time of the 20KB TensorFlow Lite for Microcontrollers �Micro speech� example is only 6ms. To support �Vibration� applications, this board features a STM LSM9DS1 IMU for 3-axis accelerometer function. The WE-I Plus features an ASIC embedded EM9D DSP Floating-Point-Unit (FPU).

Finally, the WE-I Plus EVB has 2 LEDs to indicate classification result and a built-in FTDI USB to SPI/I2C/UART bridge for Flash programming and metadata or message output. It also provides an expansion header with I2C and GPIOs interface to add external sensors or devices.

Features:

• WE-I Plus ASIC (HX6537-A)
  • ARC 32-bit EM9D DSP with FPU
  • 400MHz clock frequency
  • 2MB SRAM
  • 2MB Flash
• Himax HM0360 AoS TM ultra-low power VGA CCM
  • 1/6" CMOS Sensor
  • 640 x 480 Pixel
  • 60 FPS
• FTDI USB to SPI/I2C/UART bridge
• LDO power supply (3.3/2.8/1.8/1.2V)
• 3-axis accelerometer (STM LSM9DS1)
• 1x reset button
• 2x microphones (L/R)
• 2x user LEDs
• MicroUSB connector
• Expansion header
  • 1x I2C port
  • 3x GPIOs
  • Power/Ground

Documents:

• WE-I Plus EVB Datasheet (Updated 1/27/2021)
• HX6537 Datasheet
• HM0360 Datasheet

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