Ag / Industrial
protocol tooling and retrofits for ag and off-highway equipment
Off-highway equipment runs on CAN and ISOBUS buses with far less open tooling than automotive has. The public anchor here is opendbc-ag, an MIT-licensed agricultural protocol library modeled on comma.ai's opendbc: 2,690 unique PGNs and 2,780 signals across three DBC files, scoped to pure-standard PGNs only, every signal carrying a comment naming its public source. Scope is enforced by CI rather than by review — the build, not a maintainer, rejects proprietary-range PGNs.
Around the library is field work on real equipment, kept general: a sprayer retrofit covering a GPS-dropout diagnostic and a field curriculum for the firmware-flash procedure, plus protocol sensing across adjacent equipment domains. The industrial-edge case study carries the diagnostic, the curriculum, and how they connect to the library; equipment and brand specifics stay general throughout.
Industrial edge — a sprayer diagnostic, a field curriculum, a protocol library
A CAN/GPS diagnostic on agricultural spray equipment, a field curriculum, and the public protocol library that backs the domain.
opendbc-ag
Agricultural CAN/ISOBUS protocol library — a DBC corpus mapping raw frames to named signals, scoped to pure-standard PGNs only (ISO 11783 + the J1939 ag subset). Scope is enforced by CI, not review.