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SAE J1939 Functional Safety Communications Protocol
Commercial road and off-highway vehicles, as well as off-road construction machines, frequently utilize J1939-based application layers. In response to the growing need for functional safety, SAE has created specific protocols for CAN CC (classic) and CAN FD: J1939-76 and J1939-77, respectively. An article on the CiA (CAN-in-Automation) website discusses the SAE standards for functionally safe communications on CAN [...]
NMEA 2000 Product Certification for Marine Applications
The NMEA 2000 product certification is a mark of reliability, ensuring quality and interoperability for NMEA 2000 networks. It guarantees that a device supports a mandatory set of protocol services and hardware requirements. Developers can carry out the certification themselves or be supported by engineers with experience in NMEA 2000 certification. NMEA 2000 is a protocol [...]
CANFDuino: Upgrading the Hardware to 24 VDC Power Supply
Today, we are addressing a frequently asked question since the product's launch: 'Is it possible to power CANFDuino off of 12 or 24 V power?'. Our previous response, 'Yes, using the prototyping space to add a regulator', while accurate, may not have been as helpful as we intended. To provide a more practical solution, we [...]
Arduino-Compatible Open-Source Dual CAN-FD Network Analyzer
In a previous post, we highlighted SavvyCAN, developed by Collin Kidder, as the most effective open-source software for CAN bus sniffing. We have also worked on enhancing the compatibility of the CANFDuino and the GVRET protocol with SavvyCAN to support CANFD messages from two ports. With these updates on GitHub, you can now sniff two CANFD busses with [...]
JCOM1939 Monitor Pro - SAE J1939 Data Monitoring, Recording
Our SAE J1939 to USB/Bluetooth gateway and the SAE J1939 Starter Kit are designed to work seamlessly with our JCOM1939 Monitor Pro Software for Windows, a free download. This combination is key to ensuring your purchased product's optimal performance and overall satisfaction. For your convenience, we have meticulously crafted a dedicated website. This one-stop hub houses [...]
SAE J1939 and OBD2 Heavy Duty Truck Scanner and Diagnostics
DPF Force Regen & Reset for Cummins Caterpillar Engine -- Reset and clean your DPF professionally, quickly, and efficiently to ensure your engine runs smoothly and meets emissions standards. This all-in-one solution saves you money on maintenance costs. The Inspection Record feature records all DPF inspections to help track and manage maintenance schedules. Full System Diesel [...]
The Myth: Controller Area Network is “Too Easy to Hack”
The potential security issues of CAN and its higher-layer protocols attract increased attention from the automotive, control, and medical industries. At first glance, believing that a well-documented standard like ISO 11898 makes it easier to manipulate control functions, whether in an automobile or a medical device such as an MRI or CT scanner, makes sense. [...]
ESP32 Processor with Internal SJA 1000 CAN Bus Controller
This post is an excerpt from our application note Controller Area Network (CAN) Development with ESP32. The ESP32 is a low-cost, low-power system-on-chip microcontroller with integrated WiFi and dual-mode Bluetooth. It employs a Tensilica Xtensa LX6 microprocessor in dual-core and single-core variations. It includes built-in antenna switches, RF balun, power amplifiers, low-noise receive amplifiers, filters, and power [...]
SAE J1939 Data Stream Recording With Raspberry Pi
The Raspberry Pi is undoubtedly the perfect embedded system to read and record data streams from a vehicle bus. The Linux operating system provides the means of an established file management system, and these days there are multiple choices for the appropriate RPi CAN or SAE J1939 hardware interface. In the following project, I am using the Copperhill [...]
USB-CAN PC Interface with SAE J1939-13 Type II Connector
The Leaf Light HS v2 J1939-13 Type II, a standout in Kvaser's Leaf Light product series, is renowned for its reliability and affordability in connecting any CAN network to a PC or mobile computer. It's not just a workhorse but a dependable and cost-effective solution. The Leaf Light HS v2 J1939-13 Type II is a device that [...]