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espBerry DevBoard: Expand ESP32 with Raspberry Pi HATs for Powerful IoT Solutions

ESP32 Development Board with Dual Isolated CAN Bus HAT

espBerry DevBoard: Expand ESP32 with Raspberry Pi HATs for Powerful IoT Solutions

By Wilfried Voss on March 10, 2025

The espBerry ESP32 development board by Copperhill Technologies is designed to enhance the capabilities of the ESP32 microcontroller by integrating it with the extensive ecosystem of Raspberry Pi HATs (Hardware Attached on Top). This integration allows developers to leverage the strengths of both platforms, enabling versatile and efficient solutions for…

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CAN-XL vs. Automotive Ethernet in Automotive Applications
CAN-XL vs. Automotive Ethernet in Automotive Applications
March 3, 2026
CAN-XL (Controller Area Network eXtra Long) and Automotive Ethernet represent two different approaches to in-vehicle networking. CAN-XL is the upcoming third-generation CAN bus protocol, evolving...
Heavy-Duty Truck Diagnostic Scanner for SAE J1939 and J1708 Vehicle Networks
Heavy-Duty Truck Diagnostic Scanner for SAE J1939 and J1708 Vehicle Networks
February 9, 2026
The HD601 is a diagnostic scan tool intended for use with 12 V and 24 V commercial vehicles that implement standardized heavy-duty diagnostic protocols. It...
Electronic Logging Device (ELD) Design: Embedded Hardware and Software Engineering for FMCSA Compliance
Electronic Logging Device (ELD) Design: Embedded Hardware and Software Engineering for FMCSA Compliance
February 9, 2026
Electronic Logging Devices (ELDs) are regulated embedded systems used in commercial vehicles to automatically record Hours of Service (HOS) data in compliance with U.S. FMCSA...
Garmin eLog: A Straightforward Path to ELD Compliance
Garmin eLog: A Straightforward Path to ELD Compliance
February 7, 2026
Staying compliant with Hours of Service regulations does not have to mean juggling subscriptions, complex installations, or bloated fleet software. The Garmin eLog was designed...
ECU Programming for Beginners: A Clear, Hands-On Guide to Understanding Modern Vehicle Electronics
ECU Programming for Beginners: A Clear, Hands-On Guide to Understanding Modern Vehicle Electronics
February 7, 2026
Modern vehicles are no longer just mechanical systems with a few sensors bolted on. They are rolling networks of computers. Dozens of Electronic Control Units...

Heavy-Duty Truck Diagnostic Scanner for SAE J1939 and J1708 Vehicle Networks
Heavy-Duty Truck Diagnostic Scanner for SAE J1939 and J1708 Vehicle Networks
February 9, 2026
The HD601 is a diagnostic scan tool intended for use with 12 V and 24 V commercial vehicles that implement standardized heavy-duty diagnostic protocols. It...
Garmin eLog: A Straightforward Path to ELD Compliance
Garmin eLog: A Straightforward Path to ELD Compliance
February 7, 2026
Staying compliant with Hours of Service regulations does not have to mean juggling subscriptions, complex installations, or bloated fleet software. The Garmin eLog was designed...
My20 ELD Review: Low-Cost Electronic Logging Device for J1939 Trucks
My20 ELD Review: Low-Cost Electronic Logging Device for J1939 Trucks
January 15, 2026
An ELD, or Electronic Logging Device, is an electronic system used in diesel trucks to automatically record a driver’s hours of service. It connects to...
PiCAN CAN Bus HATs: Empowering Raspberry Pi for Automotive & Industrial Prototyping
PiCAN CAN Bus HATs: Empowering Raspberry Pi for Automotive & Industrial Prototyping
January 2, 2026
The PiCAN series from Copperhill Technologies is a line of CAN Bus interface boards (HATs) designed for the Raspberry Pi. These add-on boards are widely...
Using Contactless CAN and SAE J1939 Readers for Non-Intrusive Vehicle and Industrial Diagnostics
Using Contactless CAN and SAE J1939 Readers for Non-Intrusive Vehicle and Industrial Diagnostics
December 18, 2025
Accessing CAN bus data has traditionally required either a diagnostic connector or a direct electrical connection to the CAN-H and CAN-L lines. This applies equally...
J1939 Diagnostics Made Easy: How Modern Scan Tools Simplify Diesel Engine Troubleshooting
J1939 Diagnostics Made Easy: How Modern Scan Tools Simplify Diesel Engine Troubleshooting
December 8, 2025
For diesel truck owners — whether you’re running a heavy-duty rig for work or simply maintaining a robust personal vehicle — having the right diagnostic...
DEF Sensor Simulator Explained: Background, Function, and DIY Assembly Guide
DEF Sensor Simulator Explained: Background, Function, and DIY Assembly Guide
November 25, 2025
Please consider! The DEF Sensor Simulator is not an off-the-shelf device. It was originally created by a team of automotive engineers as a proof-of-concept solution...
Unlocking J1939 Telematics: Teensy 4.1 Triple CAN Bus Board with Ethernet and GNSS
Unlocking J1939 Telematics: Teensy 4.1 Triple CAN Bus Board with Ethernet and GNSS
November 20, 2025
In the heavy-vehicle, mobile-machinery and industrial equipment world, the CAN bus remains a workhorse for on-board networks. But merely having physical CAN isn’t enough: what...
Heavy Duty Truck Systems Explained: A Deep Dive into the Top Diesel Technician Textbook
Heavy Duty Truck Systems Explained: A Deep Dive into the Top Diesel Technician Textbook
November 18, 2025
If you’re looking to dive deep into the world of medium- and heavy-duty trucks—whether as a technician, a fleet maintenance manager, or a student of...
Unlocking the Engine Room: The ANCEL HD601 J1939 Truck Scanner for Heavy-Duty Diagnostics
Unlocking the Engine Room: The ANCEL HD601 J1939 Truck Scanner for Heavy-Duty Diagnostics
November 15, 2025
Maintaining and troubleshooting heavy-duty trucks requires tools that go far beyond a basic automotive OBD-II reader. Whether you work with Freightliner, International, Paccar, Detroit Diesel,...