Embedded Computer

Overo WaterStorm

After considering the most specific applications to be performed, the embedded computer chosen was the Overo WaterStorm Computer-On-Module (COM), this embedded system features a DM3730 processor with ARM Cortex-A8 architecture and a processor base clock of up to 1 GHz. In addition, this computer is attached to a Tobi expansion card that adds DVI display, Ethernet, USB Host, USB OTG, USB console, stereo console and a segment with 40 pin-headers that can be used to the embedded computer. for the most diverse functions, such as PWM modulation, GPIO, power, analog digital conversion and serial communication.

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Gumstix system with Overo WaterSTORM computer, Tobi expansion card and Caspa VL camera

A Caspa VL camera, capable of capturing color images with dimensions of 752 x 480 pixels at a frequency of 60 images per second, was also attached to the system. These three components are produced by the company Gumstix, a manufacturer of hardware specialized in small computers of the type computer-in-module (COM - Computer-On-Module), widely used for embedded systems.

Despite its small size, the combination of Overo COM with the TOBI extension card has the same performance as a full-size Linux computer, larger than other systems of this type found on the market, such as the Raspberry Pi computer.

Specifications

  • Camera - Camera Connector: 27-Pin (OMAP ISP)
  • Mechanical - Length: 58 mm - Width: 17 mm
  • Memory - Flash Memory (NAND): 512
  • Processor - Graphics Acceleration: PowerVR SGX530 with OpenGL - Digital Signal Processor: C64x+ - Processor: Texas Instruments OMAP3730 - Processor Architecture: ARM Cortex-A8 - Processor Base Clock: 800 MHz - Processor Max Clock: 1 GHz
  • Power - Power Management: Texas Instruments TPS65950
  • Storage - Storage Expansion via microSD Card Slot

Note

The complete specifications for the computer, extension card and camera are available in the datasheets below.

References

  • PITA, H. C. Desenvolvimento de sistema de comunicação multiplataforma para veículos aéreos de asa fixa. Faculdade de Tecnologia, Universidade de Brasília, 2018.
  • Overo® WaterSTORM COM - Gumstix Store