Adafruit
Adafruit Perma-Proto HAT for Pi Mini Kit - With EEPROM
The Adafruit Perma-Proto HAT for Pi Mini Kit with EEPROM is a full-sized prototyping daughter board for any Raspberry Pi with a 2×20 GPIO header. It provides...
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The Adafruit Perma-Proto HAT for Pi Mini Kit with EEPROM is a full-sized prototyping daughter board for any Raspberry Pi with a 2×20 GPIO header. It provides a grid of 0.1″ soldering holes connected in a familiar breadboard pattern, plus a pre-soldered 24C32 I2C EEPROM for self-identifying HAT configuration using the Raspberry Pi Foundation's HAT specification.
Nearly every GPIO pin is broken out near the top of the board, along with dedicated power strips for +3V, +5V, and ground. The EEPROM is connected to the EEDAT/EECLK lines and can be programmed to make the HAT self-identifying on boot.
Key Features
- Breadboard-Style Layout – 0.1″ grid with connected pads matching solderless breadboard patterns
- GPIO Breakout – Nearly all Pi GPIO pins broken out along the top edge
- Power Rails – Dedicated +3V, +5V, and GND strips
- 24C32 I2C EEPROM – Pre-soldered for Pi HAT self-identification
- Full HAT Form Factor – Sized for Pi Zero/A+/B+/2/3/4/5
Ideal For
- Building custom self-identifying Pi HATs with EEPROM configuration
- Transferring breadboard prototypes to a permanent soldered HAT
- Custom sensor, relay, or interface circuits connected to a Pi
Also Consider
- Perma-Proto HAT – No EEPROM – Stack-friendly version without EEPROM
- Perma-Proto Bonnet Mini Kit – Smaller Pi Zero-sized version
Package Contents
- 1× Perma-Proto HAT PCB (with pre-soldered 24C32 EEPROM)
- 1× 2×20 Female GPIO Header
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- EEPROM
- A type of non-volatile memory that keeps stored data even when power is turned off. In a sensor module, it can be used to store settings or calibration data so they do not need to be re-entered every time.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
- solderless breadboard
- A reusable board with rows of internally connected holes for building circuits by pushing in components and jumper wires, with no soldering required. It lets you prototype and rewire a circuit quickly and reversibly before committing to a permanent, soldered build.
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Brands
Prototyping & Wiring
Raspberry Pi
Related Tutorials
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