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BLCKTEC 460T OBD2 Scanner Review: A Powerful All-System Diagnostic Tool for Serious DIYers
If you maintain your own vehicle or manage a small repair operation, having a capable diagnostic tool is essential. The BLCKTEC 460T OBD2 Scanner is one of the more advanced consumer-level devices on the market, offering all-system diagnostics, service reset functions, and live-data graphing. Below, we’ll explore what this tool can do, how it performs, [...]
Programming the ESP32: Choosing the Right IDE for Your Workflow
The ESP32 has become one of the most versatile and affordable microcontrollers available today. Whether you’re building IoT devices, automation systems, or experimenting with wireless communication, the ESP32 provides exceptional power and flexibility—dual-core processing, Wi-Fi and Bluetooth connectivity, low-power modes, and robust GPIO capabilities. But before any code can run on an ESP32, developers must decide [...]
Comparing SAE J1939 Baud Rates: Evaluating 250k vs. 500k for Modern Vehicle Networks
For years, SAE J1939 has been synonymous with heavy-duty vehicle networking, and 250k baud has been the de facto standard. But as vehicles grow more connected and data-intensive—think emissions controls, advanced diagnostics, telematics, and electrification—the question arises: is 250k still enough? The recent discussion around adding a 500k baud rate to the J1939 standard aims to [...]
SAE J1939 250k/500k Baud Rate Converter – Bridge Between Different CAN Bus Speeds
In modern heavy-duty vehicles and industrial machinery, the SAE J1939 protocol has become the communication backbone for engine, transmission, and diagnostic systems. However, as technology evolves, a challenge often arises: older systems communicate at 250 kbit/s, while newer ones use 500 kbit/s. Integrating devices across these two speeds can be problematic without the right interface. The [...]
Adafruit HUZZAH32 ESP32 Feather Board – WiFi, Bluetooth & Battery Power for IoT Projects
The Adafruit HUZZAH32 Feather Board brings Espressif’s powerful ESP32-WROOM32 module into Adafruit’s popular Feather ecosystem. It offers built-in WiFi and Bluetooth connectivity, dual-core performance, and efficient battery management — making it an excellent choice for Internet of Things (IoT) and embedded applications that demand portability, wireless communication, and reliability. Compact Power for Wireless Projects The HUZZAH32 is [...]
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 [...]
ESP32 for CAN Bus Application Developments
The ESP32 has become one of the most versatile microcontrollers in modern embedded development. With its dual-core processor, integrated Wi-Fi and Bluetooth, and robust peripheral set, it is a natural fit for advanced networking and control applications. One of its rising uses is in Controller Area Network (CAN Bus) systems, where the ESP32 provides both [...]
CAN Bus and SAE J1939: A Beginner’s Guide to Network Design
If you’ve ever worked with industrial machines or diesel engines, chances are you’ve heard of CAN bus and SAE J1939. These two go hand-in-hand when it comes to reliable, real-time communication between control units. Let’s break down the essentials of how these networks are designed and why they matter. What Is CAN Bus? CAN (Controller Area Network) [...]
How to Wire NMEA 2000 with the PICAN-M Raspberry Pi HAT and Power It Using the Onboard SMPS
The PICAN-M is a marine-grade Raspberry Pi HAT that brings both NMEA 0183 and NMEA 2000 connectivity to your Pi, with the added convenience of an onboard 3 A SMPS (Switch-Mode Power Supply) for powering the Pi itself. This makes it ideal for embedded marine systems using platforms like OpenPlotter or Signal K. In this [...]
Migrating Legacy CAN Systems to Modern Architectures: Practical Steps & Pitfalls
The Controller Area Network (CAN) protocol has been the backbone of reliable embedded communication for decades. From passenger cars to heavy-duty trucks, from industrial machinery to marine electronics, CAN has delivered deterministic, robust, and low-cost networking. But as data demands grow—driven by autonomous features, connected vehicles, and Industry 4.0—Classical CAN’s 1 Mbit/s bandwidth and 8-byte [...]