SKU: SBCD-1435
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Pimoroni MMC HAT for Raspberry Pi

₹1,119.00 (Inclusive of all taxes)
Out of Stock

The Pimoroni MMC HAT adds a secondary microSD card socket to your Raspberry Pi, leveraging its SDIO interface for expanded storage or versatile system management. It is compatible with a wide range of Raspberry Pi models, including the A+, B+, Zero, 2B, 3B, 3B+, and 4B.

Features

  • Adds a second microSD card socket to your Raspberry Pi via the SDIO interface.
  • Compatible with Raspberry Pi A+, B+, Zero (W), 2B, 3B, 3B+, and 4B.
  • Enables applications like image writing, additional storage, and RAID1 setups.
  • High-quality construction ensures reliable performance.

Out of stock

Description

The MMC HAT (Hardware Attached on Top) provides a convenient way to expand your Raspberry Pi’s storage capabilities by adding a second microSD socket. This HAT utilizes the Raspberry Pi’s second (or third on Pi 4) SDIO interface, allowing for direct hardware-level access to an additional microSD card.

It offers broad compatibility across various Raspberry Pi models, including the A+, B+, Zero (with headers), Zero W (with headers), 2B, 3B, 3B+, and 4B. It’s important to note that when used on a Raspberry Pi Zero W, 3B, or 3B+, the onboard WiFi will be disabled as it shares the same SDIO interface. However, the Raspberry Pi 4, with its three SD controllers, supports simultaneous use of the onboard SD, WiFi, and the MMC HAT.

This expansion board is ideal for developers and makers looking to create robust systems requiring redundant storage, easy OS management, or simply more space for projects and data.

Key Features

  • High-quality construction ensures durability and reliable operation.
  • Expands Raspberry Pi's storage by adding a secondary microSD card slot.
  • Broad compatibility with Raspberry Pi A+, B+, Zero (W), 2B, 3B, 3B+, and 4B.
  • Utilizes the Raspberry Pi's second (or third) SDIO interface for direct card access.
  • Enables diverse use cases such as system backups, OS flashing, and additional data storage.
  • Allows simultaneous use of onboard SD, WiFi, and MMC HAT on Raspberry Pi 4.
  • Easy to install and integrate into existing Raspberry Pi setups.

Applications

  • Micro SD card reader for writing new images, repairing, or modifying existing Raspberry Pi installations.
  • Additional storage for home directories, general data storage, or system backups.
  • Implementation of RAID1 on the root (/) partition for enhanced system reliability.
  • Connector for Controller Serial Console when paired with a compatible USB Serial Adaptor.

Technical Specifications

Item TypeHAT
HAT TypeMMC HAT
CompatibilityRaspberry Pi A+, B+, Zero & Zero W (with headers), 2B, 3B & 3B+, 4B
SD Card SupportMicro SD-Card
ColorRed
Length70 mm
Width60 mm

Frequently Asked Questions

What Raspberry Pi models are compatible with the MMC HAT?

The MMC HAT supports a wide range of Raspberry Pi boards, including A+, B+, Zero, Zero W (with headers), 2B, 3B, 3B+, and 4B. Compatibility notes exist for WiFi usage on certain models like the Pi Zero W, 3B, and 3B+ due to shared SDIO interfaces.

How does the MMC HAT integrate with the Raspberry Pi's hardware?

It connects to the Raspberry Pi's 40-pin GPIO header and utilizes the second (or third on Pi 4) SDIO interface to provide a fully functional secondary microSD card socket. This allows direct hardware-level access for expanded storage capabilities.

Are there any known limitations when using the MMC HAT on specific Raspberry Pi models?

Yes, when used with Raspberry Pi Zero W, 3B, or 3B+, the onboard WiFi functionality will be disabled because it shares the same SDIO interface as the MMC HAT. Raspberry Pi 4, however, has multiple SD controllers and can run the HAT, WiFi, and onboard SD concurrently.

What are the primary applications for the Pimoroni MMC HAT?

Key applications include using it as a secondary boot device, additional general-purpose storage, implementing RAID1 on the root partition for improved reliability, or acting as a dedicated micro SD card reader for flashing and repair operations on other Pi images.

What kind of operating system support is available for the MMC HAT?

The MMC HAT functions at a hardware level, so it's generally supported by standard Raspberry Pi OS (formerly Raspbian) distributions, as well as other Linux-based operating systems that properly handle SDIO interfaces. No special drivers are typically required beyond standard kernel modules.

Package Includes

  • 1 x MMC (micro SD) HAT for Raspberry Pi
  • 4 x 12mm M2.5 standoff
  • 8 x 6mm M2.5 screw
  • 4 x stick-on foot

Additional Information

Weight 0.018 kg
Dimensions 7 × 6 × 1 cm