Loading... Please wait...
Blog
Recent Posts
Why Would You Need Two CAN Ports on a Raspberry Pi?
When developers first start working with CAN bus networks, a single CAN interface is usually sufficient. It allows them to monitor traffic, transmit messages, and develop applications for automotive, industrial, marine, or agricultural systems. However, as projects become more sophisticated, the limitations of a single CAN port quickly become apparent. This is where dual-channel CAN interfaces [...]
Why CAN Bus Is One of the Most Reliable Communication Systems Ever Created
When engineers design communication systems for vehicles, industrial machinery, agricultural equipment, marine electronics, and embedded control systems, reliability is often more important than raw speed. A lost message in a music streaming application may go unnoticed. A lost message containing engine speed, brake status, steering angle, or hydraulic pressure can lead to equipment malfunction, downtime, or [...]
Free SAE J1939 Protocol Stack for ESP32 — Open New Paths for CAN Bus Innovation
We at Copperhill Technologies are excited to announce that we are releasing a fully functional SAE J1939 protocol stack for the ESP32 — and best of all, it’s completely free to use. Whether you’re an engineer, a student, or a maker, this opens up serious possibilities for CAN-bus projects and vehicle network applications — without [...]
OBD-II CAN Bus ECU Simulator: Learn Vehicle Diagnostics, Protocols, and Software Development
The Teensy 4.0 OBD-II CAN-Bus ECU Simulator offered by Copperhill Technologies is a powerful and versatile tool for developers, engineers, educators, and hobbyists working with automotive networks. By emulating an engine control unit (ECU) through a standard OBD-II interface, this compact platform allows safe testing, prototyping, and diagnostic training—without requiring direct access to a vehicle. Key [...]
CAN Bus Development for Embedded Systems: With and Without an Operating System
The Controller Area Network (CAN) Bus has become an essential communication protocol in automotive, industrial, marine, and robotics applications due to its robustness, efficiency, and real-time capabilities. When it comes to embedded systems, developers have multiple hardware and software platforms to choose from—some with full operating systems (OS), others running bare-metal (without OS). At Copperhill Technologies, [...]
CAN Bus Unplugged: A Deep Dive into Its Origins, Growth, and Future
The following is an excerpt from https://jcom1939.com/history-and-development-of-the-controller-area-network-can-bus/ Introduction The Controller Area Network (CAN) bus is a robust serial communication protocol developed to facilitate real-time data exchange between electronic control units (ECUs) in various applications, notably in the automotive industry. Originating in the 1980s, CAN bus has become integral to numerous systems requiring reliable and efficient communication among [...]