SAE J1939 Analyzer & Simulator Board With USB Port
Features
- Hardware is fully SAE J1939/1x compliant.
- Fully SAE J1939/21 and J1939/81 compliant module with on-chip SAE J1939 protocol, including Transport Protocol (TP)
- Free-of-charge Windows analyzer software
- Monitor, record, and analyze SAE J1939 data traffic
- Simulate SAE J1939 data traffic
- Respond to message requests
- Define message filters
- Automatic node address negotiation
- Fully programmable per USB port
- Virtually OS independent
- Programming sample for Windows, Linux, and embedded systems
The SAE J1939 ECU Simulator Board with USB Port from Copperhill Technologies is a compact, high-performance development tool designed for vehicle network engineers, embedded developers, and hobbyists working with the SAE J1939 protocol, a higher-layer communication standard running on Controller Area Network (CAN) bus systems commonly used in heavy-duty trucks, buses, and industrial machinery. This board functions as a USB-connected gateway that implements the full SAE J1939 protocol on-chip, handling all network layers including data link, transport, and network management such as address claiming, without placing undue load on the host system. It allows any host device with a COM-accessible USB port, including a Windows PC, Raspberry Pi, BeagleBone, Arduino, or Teensy, to monitor, record, analyze, and simulate J1939 data traffic directly over a vehicle’s J1939 network. The hardware includes features such as switchable termination, adjustable node addressing, and message filtering to support robust network interaction and testing.
Paired with Copperhill’s JCOM1939 Monitor software, this board becomes a versatile tool for developing and debugging SAE J1939 applications. Through the software, users can scan networks, simulate Electronic Control Units (ECUs), respond to message requests, and visualize live J1939 traffic, making it easier to prototype communication systems, gateways, and diagnostic tools without needing access to a full vehicle network. Its virtually OS-independent operation and well-documented communication protocol, combined with support for popular development platforms, make the simulator board a flexible choice for anyone building, testing, or learning about J1939 communications.
