OUTLINE
ZERO INSTAL
Power via USB. Enter device URL to open webCAN. Start streaming CAN data in your browser
COMPACT
Only 8 x 7 x 2 CM. 90G. Aluminium enclosure. Built-in LCD display for device status
PRO SPECS
2 x CAN FD. Galvanic isolation. 20K+ frames/s. 1 µs timestamps. Error frames. Silent mode
WEBCAN APP
Runs on device. Configure device, stream CAN data, DBC decode, plot signals - and more
USB+ETHERNET
USB for direct CAN access via laptop. Ethernet for network, WiFi and remote use. HTTPS
OPEN API
REST/WebSocket API lets you build custom web apps, Python integrations and more
Pro specs CAN bus interface - at half the cost
The compact CANsub.2 lets you send/receive 2 x CAN FD via USB or Ethernet - with professional-grade specs:
- Stream CAN bus data via either USB or Ethernet
- Built-in LCD display shows device URL and live CAN status
- webCAN app runs on device - zero installation
- 20,000+ frames/second with 1 µs timestamp resolution
- Configurable silent mode and hardware ID filters
- Transmit list 'jobs' with edge-based timing precision
- CAN error frame and remote frame (RTR) support
- 2 x DB9 for standard adapter cables (OBD2-DB9, J1939-DB9, ...)
On boot, the CANsub.2 display shows the device URL - simply enter it in your browser to open the webCAN app and start streaming CAN data in real-time
As an alternative to USB, you can connect the CANsub via Ethernet to a router to access it via LAN, WiFi or even the internet (optionally using a Power-over-Ethernet adapter)
Once connected, the built-in LCD display shows the status of each CAN channel (CAN1-CAN2) incl. bit-rates, busloads, errors and frames/second
The CANsub.2 offers pro specs and 2 x CAN FD channels - yet it is extremely compact, measuring only 8 x 6 x 2 CM and weighing just 90 grams
webCAN runs on your CANsub - zero installation needed
The webCAN app is hosted on the CANsub - simply enter the device URL in your browser to start.
No drivers, no software installation, no internet required:
- Configure bit-rates incl. auto-detection support
- Set hardware filters, silent mode and CAN errors
- Create custom transmit sequences (optional DBC encoder)
- Connect multiple CAN buses in parallel (20K+ frames/sec)
- Load and assign DBC files for real-time decoding
- View summary statistics across CAN IDs and signals
- View, export and import trace data (up to 2M frames)
- Support for J1939 TP, ISO-TP, NMEA 2000 Fast Packets
- Visualize decoded signals in real-time charts
- Powerful frontend filters for CAN IDs and signals
- Save/load device configuration and DBC settings
webCAN lets you easily plot DBC decoded CAN signals in real-time plots - with seamless historical browsing
By connecting the CANsub to your WiFi router via Ethernet, any device (incl. tablets/smartphones) can use webCAN instantly from the browser
The Summary view displays key info per unique CAN frame (last data, frames/second, count) or by DBC decoded CAN signal (last/min/max/avg value) across all CAN channels in parallel
With the Trace view you can see the latest CAN frames (or decoded signals) across CAN channels in real-time - or browse/filter through up to 2M historical frames
You can easily upload DBC files in webCAN and assign them per CAN channel to enable live decoding - with DBC files/assignments persisting across sessions
Export raw/decoded CAN summary/trace data from webCAN to CSV for offline analysis in e.g. Excel - or for later re-import into webCAN
Deploy custom CAN transmit sequences/jobs with edge-based timing precision - ideal for OBD2, UDS, J1939 and XCP requests
Use keyboard shortcuts to enter fullscreen mode in webCAN - ideal for focusing on real-time CAN signal plots on monitors and shared displays
webCAN tags and decodes multi-frame transport protocol payloads incl. ISO-TP, J1939 TP and NMEA 2000 Fast Packets - critical for J1939 DM1 / OBD2 DTCs
Access your CAN data from anywhere via Ethernet
Connect the CANsub via Ethernet to a router - then access it via LAN, WiFi or even the internet:
- Use the CANsub from any device on the network
- webCAN enables instant access via any PC/tablet/phone
- Connect the device to a WiFi router for wireless access
- Access multiple devices with unique bookmarked URLs
- Secure remote internet access via VPN - incl. via LTE routers
- All data securely encrypted via HTTPS (TLS)
- Optional Power-over-Ethernet (PoE) adapter available
100% open CAN interface
with free software and APIs
The CANsub provides an open REST/WebSocket API for custom apps & integrations - and a powerful toolbox beyond webCAN:
- Python API: Automate streaming/processing e.g. via AI agents
- SavvyCAN: Stream raw/decoded data - e.g. for CAN sniffing
- PlotJuggler: Plot CAN signals with advanced transformations
- REST API: For device configuration and monitoring (OpenAPI)
- WebSocket API: For real-time transfer of raw CAN frames
- JS/TS libraries: Quickly build custom CANsub web apps
- Docs for AI: LLM-friendly TXT docs for rapid development