Adafruit RP2040 CAN Bus Feather with MCP2515 CAN Controller - STEMMA QT

At the Feather's heart is an RP2040 chip, clocked at 133 MHz and at 3.3V logic, the same one used in the Raspberry Pi Pico. With STEMMA QT connector it's ready for plug-and-play of I2C devices. The controller used is the MCP26525 (aka a MCP2515 with built-in transciever), an extremely popular and well-supported chipset that has drivers in Arduino and CircuitPython and only requires an SPI port and two pins for chip-select and IRQ. Use it to send and receive messages in either standard or extended format at up to 1 Mbps.

Specifications:

• Measures 50.8mm x 22.8mm x 7mm without headers soldered in
• Weight: 6.3 grams
• RP2040 32-bit Cortex M0+ dual core running at ~133 MHz @ 3.3V logic and power
• 264 KB RAM
• 8 MB SPI FLASH chip for storing files, images and CircuitPython/MicroPython code storage. No EEPROM
• 21 x GPIO pins
• Built-in 200mA+ lipoly charger with charging status indicator LED
• Pin #13 red LED for general purpose blinking
• RGB NeoPixel for full-color indication.
• On-board STEMMA QT connector that lets you quickly connect any Qwiic, STEMMA QT or Grove I2C devices with no soldering!
• Both Reset button and Bootloader select button for quick restarts (no unplugging-replugging to relaunch code)
• USB Type C connector lets you access built-in ROM USB bootloader and serial port debugging
• 3.3V regulator with 500mA peak current output and power enable pin
• 4 mounting holes
• 12 MHz crystal for perfect timing
• Support circuitry for CAN Bus using SPI interface