Decoda is a simple RESTFul webservice for the SAE J1939 specification. It provides facilities to lookup reference information from the specification, and to decode binary frame data into usable JSON.

Need to convert a 29-bit CAN ID to a J1939 PGN (Parameter Group Number)? Or view the full J1939 PGN list? Then check out our online J1939 PGN converter tool!

Mar 20, 2025 · Open and follow the J1939 serial decoding Guided test in PicoScope 7 Automotive to decode the messages on machines or vehicles that use the J1939 protocol. Alternatively, if you have …

The J1939 decoder I/O extracts SAE J1939 SPN values from CAN messages. It has one input that must be connected to a source of CAN messages, typically a CAN decoder I/O, and can have multiple …

This file lets you easily decode data from heavy duty vehicles (trucks, buses, tractors, etc.). This DBC file download includes: The SAE J1939 Enhanced DBC file with Includes 2,400+ Parameter Group …

J1939 decode C library. Contribute to jackm/j1939decode development by creating an account on GitHub.

Jun 23, 2021 · The J1939 decoder is, however, built for decoding J1939 CAN protocol messages and specifically the ID. What makes J1939 deserve its own decoder comes down to how the ID is formed …

The SAE J1939 DBC file contains decoding rules for converting raw J1939 data to 'physical values' (km/h, %, etc.). This file lets you easily decode data from heavy duty vehicles (trucks, buses, …

J1939 Explained - A Simple Intro [2025] Need a simple intro to SAE J1939? In this guide we introduce the J1939 protocol basics incl. PGNs and SPNs, key characteristics, request messages and the …

Aug 14, 2025 · Learn J1939 basics‚ PGNs, SPNs, addressing and tools for heavy-duty trucks and machinery. Examples and troubleshooting tips included.