WSAL23635 – USB-CAN-A/en

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

USB to CAN Adapter Model A, STM32 Chip Solution, Multiple Working modes, Multi-system Compatible

Catalog location in the JW Tech Shop:

• WSAL23635 – USB to CAN Adapter Model A, STM32 Chip Solution, Multiple Working modes, Multi-system Compatible: IoT / Communication → Wired Comm / Converter → USB TO RS232 / RS485 / UART/ CAN; Raspberry Pi → HATs → Interface / Expansion / Power

Summary

The Waveshare USB-CAN-A is a USB-to-CAN adapter based on an STM32 chip. It supports CAN 2.0A/2.0B, four operating modes, and configurable baud rates from 5 kbps to 1 Mbps. The default serial port baud rate is 2 Mbit/s.

Related products at JW Tech

• WSAL23635 – USB to CAN Adapter Model A, STM32 Chip Solution, Multiple Working modes, Multi-system Compatible

Technical overview

• Supports CAN 2.0A (standard frame) and CAN 2.0B (extended frame).
• CAN baud rate range: 5 kbps to 1 Mbps; the serial port baud rate defaults to 2 Mbit/s.
• Four operating modes: normal mode, loopback mode, silent mode, and silent loopback mode.
• Various transmission methods: single-frame, multi-frame, manual transmission, timed transmission, and cyclic transmission.
• Reception options: receive only data with specified IDs or configure IDs to automatically respond with predefined data.
• Data can be saved as TXT or EXCEL files.
• Onboard TVS suppresses surge voltage and transient spikes in the circuit.
• Configuration can be set via software or serial commands and persists after power-off.
• Both Chinese and English versions of the Windows host software are provided.
• CH341SER driver is used for installation; the configuration tool requires no installation and runs directly after unzipping.

Commands and examples – verify before use: 

AA C8 23 01 11 22 33 44 55 66 77 88 55

Notes and version constraints

• No Python-specific demos are available; communication happens via serial commands or the supplied tool.
• The exact mapping between LED flash sequences and baud rates must be verified before changing the COM baud rate.
• If receiving fails while sending works, check the filter ID setting (set to 0x00000000 to accept all IDs).
• Whether GND connections are required depends on the application environment; a GND connection is recommended for long cables (>1 m), different power sources, or noisy environments.
• Version-specific details of the configuration tool (currently version 2.12) must be verified before use.

Source and revision record

• USB-CAN-A - Waveshare Wiki
• Source revision: 110827
• Captured: 2026-08-29T08:19:47+00:00
• SHA-256: 4b70176ab4f47c3c075eef7155fccf3813ca5b60f2fc3a3c4fcdf7058e4aaadc