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Controller Area Network (CAN Bus) Tutorial - Dominant And Recessive Bus Level
The following is an excerpt from A Comprehensible Controller Area Network by Wilfried Voss. Before discussing each bit in a CAN Bus frame, it is helpful to briefly examine the physical layer (for more details, refer to Chapter 9—Physical Layer) to understand the nature of, for instance, the SOF (Start of Frame) bit, the RTR (Remote Transmission [...]
ESP32 Development Boards and Accessories for IoT Applications
The integration of Wi-Fi, Bluetooth, and Bluetooth LE allows a wide range of applications with the ESP32 modules. Wi-Fi ensures connectivity within a large radius, while Bluetooth allows the user to easily detect (with low-energy beacons) a module and connect it to a smartphone. The chips add priceless functionality and versatility to your applications with [...]
Installing python-can on the Raspberry Pi
This post demonstrates the steps required to install python-can on the Raspberry Pi for use with PiCAN2, PiCAN3, PiCAN-M CAN Bus HATs. First make sure the driver is installed. See:PiCAN2, PiCAN3, and PiCAN-M Driver Installation for Raspberry Pi...Now install python-can: pip3 install python-can Check there is no error. You can now initialize the CAN interface: sudo /sbin/ip link set can0 [...]
PiCAN2, PiCAN3, and PiCAN-M Driver Installation for Raspberry Pi
This post provides you a brief overview on the steps required to install the software driver on the Raspberry Pi for use with the PiCAN2, PiCAN3, and PiCAN-M CAN Bus HATs, including the dual-port and SMPS versions. Please refer also to the board's user manual. Start by creating a new SD card image with the Raspberry Pi [...]
CAN Bus to Internet-of-Things (IoT) Projects with the ESP32
The integration of Wi-Fi, Bluetooth, and Bluetooth LE allows a wide range of applications with our modules. Using Wi-Fi secures connectivity within a large radius while using Bluetooth enables the user to efficiently detect (with low-energy beacons) a module and connect it to a smartphone. With in-built antenna switches, RF balun, power amplifier, low-noise receive [...]
A Simple SAE J1939 to USB Gateway with the Arduino Uno, Mega 2560, Due, Teensy, ESP32
The following is an excerpt from SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino by Wilfried VossI deem it necessary to clarify the definition of “SAE J1939 to USB Gateway” because there are several variants of gateway applications.If you browse through the Internet in search for SAE J1939 gateways, you will primarily find CAN [...]
What is the Difference Between SAE J1939 and NMEA 2000?
After developing and programming multiple SAE J1939 devices over the years, I was curious to determine the difference between SAE J1939 and NMEA 2000. There are some valid reasons why I didn't consider an expansion into NMEA 2000, and they all have to do with the immense costs related to NMEA 2000 development. First of [...]
CAN Bus Shield for Arduino, Mbed Platform With Fault-Tolerant MAX33040E CAN Transceiver
The MAX33040Eshld shield evaluation kit by maxim integrated represents a demonstration and development platform for the MAX33040E CAN Bus transceiver. It serves as a standalone evaluation board and the Mbed or Arduino platform to communicate with a CAN Bus network. The board features test points to access critical signal pins of the transceiver. The MAX14931 digital isolator [...]
NMEA 2000 Powered Computer System With Raspberry Pi 4, NMEA 2000 HAT, Pre-Installed OpenPlotter And Signal K
Copperhill Technologies offers various NMEA 2000 compatible embedded systems, including HATs for the Raspberry Pi and the Arduino-compatible line of Teensy modules. The NMEA 2000 standard defines a low-cost, modest capacity, bi-directional, multi-transmitter, multi-receiver instrument network. The hardware layer utilizes the CAN (Controller Area Network) technology. Typical data on an NMEA 2000 network include: Position latitude and longitude GPS [...]
CAN Bus Enabled PC For Industrial IoT (IIoT) And Transportation Applications
Portwell launched its Lynx-612B PC, an industrial PC of their Lynx-6000 Industrial IoT (Internet of Things) gateway series based on the Intel Celeron N3350 CPU (formerly Apollo Lake platform). The device is equipped with a two-core CPU, and it is certified by Microsoft Azure IoT, which provides a scalable infrastructure for data, virtual machines, servers, and front-end [...]