Adafruit Grand Central M4 Express SAMD Board
Adafruit Grand Central M4 Express features the Microchip SAMD51 and a 120MHz Cortex M4 with floating point support. The Grand Central provides enough pins to make it in the form of the Arduino Mega. The board has a massive number of pins, tons of analog inputs, dual DAC outputs, 8MBytes of QSPI flash, an SD card socket, and a NeoPixel.
Features
- Cortex M4 core running at 120MHz
- Floating point support with Cortex M4 DSP instructions
- 1MB flash, 256KB RAM
- 32-bit, 3.3V logic, and power
- 70x GPIO pins in total
- Dual 1 MSPS DAC (A0 and A1)
- Dual 1 MSPS ADC (15x analog pins)
- Micro SD card slot
- Onboard 8MB QSPI Flash storage chip
- 8x hardware SERCOM (can be I2C, SPI, or UART)
- 22x PWM outputs
- Stereo I2S input/output with MCK pin
- 12-bit Parallel capture controller (for camera/video in)
- Built-in crypto engines with AES (256-bit), true RNG, and Pubkey controller)
- 3.3V logic level
- Power via 6V to 12V polarity-protected DC or the micro USB connector to any 5V USB source
- Pre-loaded with the UF2 bootloader
Videos
Onboard MCUs
Microchip Technology SAM D5 & E5 32-Bit Arm Cortex-M4F Microcontrollers
Extensive connectivity interfaces, powerful performance, and robust hardware-based security.
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