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kumquat-readthedocs/docs/00_specs.md
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Kumquat Features and Specifications

Overview

The Kumquat is a versatile embedded system designed for a wide range of applications. Built around the Allwinner V3s System-On-Chip, it offers powerful processing capabilities and a variety of connectivity options.

Features

Processor

  • The Kumquat features the Allwinner V3s System-On-Chip, boasting an ARM Cortex-A7 @ 1.2GHz with NEON and VFPv4 extensions for enhanced performance.

Memory

  • DDR2 Memory: The Kumquat contains 64MB of DDR2 memory with up to 400MHz clock speed, ensuring smooth operation and efficient multitasking.

Connectivity

  • Ethernet: Equipped with a 10/100 Mbps Ethernet port, the Kumquat provides reliable wired network connectivity.
  • USB: Multiple USB ports are available, including a USB-C Dual Role port and a console interface over a second USB-C port.
  • Audio: The Kumquat features audio out and microphone in ports, enabling audio input and output functionalities.
  • Isolated CAN-FD: Integrated isolated CAN-FD support for communication in industrial environments.
  • WiFi and Bluetooth: The Kumquat utilizes an ESP32 module over SDIO for WiFi and Bluetooth connectivity.

Storage

  • SPI Flash: The Kumquat includes an 8MB SPI flash for bootloader and user code storage, ensuring quick and efficient boot times.
  • I2C EEPROM: An I2C EEPROM is provided for storing MAC addresses and user data.
  • SDIO Connector: The Kumquat offers an SDIO connector for attaching eMMC or SD-Card storage devices.

IOs and Relays

  • IOs: The Kumquat features 8 12/24V IOs, each capable of supplying a maximum of 500mA. The logic levels are auto-detected depending on the power supply, with a total board limit of 3A including the SoC.
  • Relays: Equipped with 4 relays in normally open configuration, capable of switching a resistive load of up to 1A at 30VDC and up to 0.3A at 125VAC.

RTC and Power

  • RTC: The Kumquat includes a Real-Time Clock (RTC) with external battery support, ensuring accurate timekeeping even in the absence of power.

Expansion

  • QWIIC Connectors: The Kumquat features QWIIC connectors for easy integration with external I2C devices, enabling rapid prototyping and expansion.

Specifications

  • Processor: Allwinner V3s SoC with ARM Cortex-A7 @ 1.2GHz
  • Memory: 64MB DDR2 with up to 400MHz clock speed
  • Connectivity:
    • Ethernet: 10/100 Mbps
    • USB: USB-C Dual Role, Console over USB-C
    • Audio: Audio Out, Microphone In
    • CAN-FD: Isolated CAN-FD
    • WiFi/Bluetooth: ESP32 module over SDIO
  • Storage:
    • SPI Flash: 8MB for bootloader and user code
    • I2C EEPROM: For MAC addresses and user data
    • SDIO Connector: For eMMC or SD-Card
  • IOs and Relays:
    • IOs: 8x 12/24V IOs, auto-detect logic levels, max 500mA each, total 3A for board
    • Relays: 4x normally open, max 1A at 30VDC, max 0.3A at 125VAC
  • RTC: With external battery support
  • Expansion: QWIIC connectors for external I2C devices

Applications

The Kumquat is suitable for a wide range of applications, including but not limited to:

  • Industrial Automation
  • Home Automation
  • IoT (Internet of Things) Projects
  • Robotics
  • Embedded Systems Development

Conclusion

With its robust features and specifications, the Kumquat offers a reliable and flexible platform for various projects and applications. Whether you're a hobbyist, developer, or professional, the Kumquat provides the tools you need to bring your ideas to life.