{"title":"Adafruit Feather M4 CAN Express with ATSAME51","handle":"adafruit-feather-m4-can-express-with-atsame51","url":"/products/adafruit-feather-m4-can-express-with-atsame51","description":"The Feather M4 CAN Express upgrades the popular Feather M4 platform with the ATSAME51J19 processor, which adds built-in CAN bus support. It features a 120 MHz Cortex M4 with hardware floating point and DSP instructions, 512 KB flash, 192 KB RAM, and an on-board CAN transceiver with 5V boost converter and terminal block connection — ready to connect to CAN bus networks straight out of the box.\n\nThe board includes 2 MB SPI flash for CircuitPython scripts or Arduino file storage, a Mini NeoPixel, UF2 drag-and-drop bootloader, and USB Type C. It ships with CircuitPython-ready firmware and is pin-compatible with the original Feather M4 Express, so it works with all FeatherWings.\n\nKey Features\n\n\nATSAME51J19 Processor – 120 MHz Cortex M4 with hardware floating point and DSP, 3.3V logic\n\n512 KB Flash + 192 KB RAM – Substantial memory for complex applications\n\nBuilt-in CAN Bus – Hardware CAN controller with on-board transceiver, 5V boost converter, and 3-pin 3.5 mm terminal block\n\n2 MB SPI Flash – On-board file storage for CircuitPython scripts or Arduino data logging\n\nUF2 Bootloader – Drag-and-drop firmware loading via USB; compatible with CircuitPython and Arduino IDE\n\nUSB Type C – Native USB with bootloader and serial port debugging\n\nHardware Crypto – AES-256, true RNG, and public key controller\n\n21 GPIO Pins – 6× hardware SERCOM (SPI, I2C, Serial), 16× PWM, I2S input/output, 8-bit parallel capture\n\nAnalogue I/O – 2× 12-bit 1 MSPS DAC (stereo audio capable) and 2× 12-bit 1 MSPS ADC (6 analogue pins)\n\nMini NeoPixel – On-board addressable RGB LED\n\nLiPo Battery Support – JST connector with built-in 100 mA charger and charging status LED\n\n32.768 kHz Crystal – For accurate clock generation and RTC\n\nCompact Design – 50.8 mm × 22.8 mm × 7 mm, weighing 5 g\n\n\nAlso Available\n\n\nFeather M4 Express – Same M4 performance without CAN bus (ATSAMD51)\n\n\nIdeal For\n\nCAN bus interfacing and automotive projects\nIndustrial automation and sensor networks\nHigh-performance CircuitPython and Arduino development\nAudio processing with dual 12-bit DACs\n\n\nPackage Contents\n\n1× Feather M4 CAN Express (ATSAME51)\n1× Header pin set\n\n\n\nNote: LiPo battery and USB cable sold separately.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3571,"title":"Default Title","sku":"AF-4759","price":50.58,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":101,"option1":"Default Title"}]}