Introducing the Adafruit Grand Central M4, featuring the powerful Microchip ATSAMD51—this is a dev board that’s bigger and better than anything you’ve seen before. It's not just a board, it’s a whole station! Perfect for projects that demand a massive amount of pins, processing power, and peripherals, this board is designed to give you a fast and smooth experience.
Key Features:
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Cortex M4 Processor: Running at 120 MHz, with floating point support, and DSP instructions, the ATSAMD51 processor brings incredible speed and performance to your projects.
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Massive Pin Count: With 70 GPIO pins, including 16 analog inputs, 2 true analog outputs (DAC), and support for SPI, I2C, UART hardware interfaces, the Grand Central M4 gives you endless possibilities.
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8MB QSPI Flash Storage: Store your files, scripts, and data directly on the board. This is great for projects that need onboard storage, and it’s easily accessible through CircuitPython or Arduino.
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Native USB: No need for an external USB-to-serial converter, the Grand Central M4 has native USB support for quick programming, data transfer, or even acting as a USB HID (keyboard/mouse).
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MicroSD Card Slot: Expand your storage options with a MicroSD card for removable storage, connected to an SPI SERCOM port.
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Advanced Peripherals:
- Dual 1 MSPS DAC and ADC for analog applications.
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8 hardware SERCOMs for additional I2C, SPI, or UART support.
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Stereo I2S input/output for audio processing.
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12-bit Parallel capture for video and camera inputs.
- Built-in crypto engines with AES (256-bit), RNG, and Pubkey controller.
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Onboard LEDs and NeoPixel: Includes four indicator LEDs and an RGB NeoPixel for easy debugging and visual feedback on your projects.
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Power Options: Power the board via USB or DC jack (6-12V) with automatic switching between the two, and an on/off switch for easy power management.
Additional Features:
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Easy Reprogramming: Pre-loaded with the UF2 bootloader, simply drag and drop your firmware to program the board without needing special tools or drivers.
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Arduino & CircuitPython Support: The Grand Central M4 works with both Arduino IDE and CircuitPython, making it a versatile option for developers. With 120 MHz and 256KB RAM, CircuitPython runs beautifully on this board.
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Compact & Compatible: The Mega-size board design maintains compatibility with Arduino Mega shields, ensuring you can use your existing hardware for rapid prototyping.
Specifications:
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Microcontroller: ATSAMD51P20, Cortex M4 core at 120 MHz.
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Memory: 1MB Flash and 256KB RAM.
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GPIO Pins: 70 pins, including 16 analog inputs and 2 true analog outputs.
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Storage: 8MB QSPI Flash and MicroSD card slot.
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Connectivity: I2C, SPI, UART, I2S.
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Power: Can be powered via USB or DC jack (6-12V).
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LEDs: 4 indicator LEDs and 1 NeoPixel.
This board is perfect for anyone who needs maximum pins, power, and versatility. Whether you're building large projects, creating a complex interface, or simply want to have a ton of GPIOs to play with, the Adafruit Grand Central M4 is ready to take your ideas to the next level.
Note: The Grand Central M4 may come with either a black or purple PCB.