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Compact USB-CAN adapter board with STM32 chip, green PCB, USB-A plug and screw-terminal CAN connector

KEHIPI

KEHIPI USB-CAN-A USB to CAN Adapter Model A

SKU CH-N630-87KEG

Connects a PC to CAN 2.0A and 2.0B networks at 5 Kbps to 1 Mbps with four working modes, Windows software, and onboard TVS protection

  • Supports CAN 2.0A and 2.0B frames at 5Kbps-1Mbps
  • Four working modes including normal, loopback, silent and silent loopback
  • Flexible send modes: single, multi-frame, manual, regular and cyclic
  • Windows software saves data as TXT or Excel with time-scale display
  • STM32 chip with onboard TVS protection for reliable communication

USB-CAN-A Adapter

The KEHIPI USB-CAN-A adapter converts a USB port into a CAN bus interface using an STM32 chip. It supports both CAN2.0A standard frames and CAN2.0B extended frames with configurable baud rates from 5Kbps to 1Mbps. Engineers and developers use it for vehicle diagnostics, industrial automation, and embedded system testing where direct CAN access is required. The device includes Windows configuration software for parameter setup and data logging.

Host Compatibility Check

Verify that your host system provides a standard USB virtual COM port and can run the supplied Windows configuration utility. The USB serial baud rate is adjustable between 9600 and 2000000bps, defaulting to 2000000bps, so terminal software must match this setting. Ensure your application can send and receive serial commands to configure the four working modes and CAN filters before deployment. No additional drivers are mentioned beyond the standard USB CDC class.

Sustained Operation Behaviour

Onboard TVS protection suppresses surge and transient spike voltages during continuous bus activity. Parameters set via software or serial command are saved after power off, preserving mode and filter configuration across sessions. The adapter handles cyclic and regular frame transmission for long-duration logging, while time-stamped sequential display assists extended bus monitoring. The STM32 solution maintains stable communication throughout prolonged use.

Pontos fortes

  • Supports CAN 2.0A and 2.0B frames at 5Kbps-1Mbps
  • Four working modes including normal, loopback, silent and silent loopback
  • Flexible send modes: single, multi-frame, manual, regular and cyclic
  • Windows software saves data as TXT or Excel with time-scale display
  • STM32 chip with onboard TVS protection for reliable communication

Especificações

Brandwaveshare
ModelUSB-CAN-A
Part NumberUSB-CAN-A

Perguntas sobre este artigo

Does the USB-CAN-A include a CAN bus cable or do I need to source one separately?

The adapter provides a DB9 male connector for the CAN bus; a suitable CAN cable or termination resistor must be purchased separately.

Which firmware mode should I select for simple two-node testing?

Use normal mode for standard communication or loopback mode to verify the adapter itself without a second node.

What does the 1 Mbps CAN baud rate mean for real-time data logging?

At 1 Mbps the adapter can transmit or receive up to one million bits per second, allowing high-resolution time-stamped logging of busy CAN networks.

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