The SparkFun Pi AVR Programmer HAT plugs directly into the GPIO header of any Raspberry Pi, turning it into a fast, reliable AVR programmer via the SPI hardware pins. It supports programming through AVRDUDE on the command line or as a stand-alone programmer using the on-board capacitive touch pad and status LEDs.

Programming AVR microcontrollers through an in-system programmer (ISP) enables faster code uploads, the ability to overwrite bootloaders for additional flash space, and direct control over fuse bit configuration.

Key Features

• SPI-Based AVR Programming – Uses Raspberry Pi hardware SPI pins for fast, reliable uploads
• Capacitive Touch Pad – One-touch programming without keyboard or terminal access
• Pass/Fail Status LEDs – Immediate visual feedback on programming results
• Isolation Switch – Disconnect the target when not programming
• ISP Header + Adapter – 1×6 hookup cable and 2×3 ISP adapter included
• Label Boxes – On-board areas to note project details
• Stand-Alone or Command Line – Use with AVRDUDE or as a dedicated programmer
• Open Source – Fully open-source hardware design

Ideal For

• Programming ATmega and ATtiny AVR microcontrollers
• Bootloader flashing and fuse bit configuration
• Batch programming and production workflows
• Headless Raspberry Pi programming stations

Package Contents

• 1× SparkFun Pi AVR Programmer HAT
• 1× 1×6 ISP hookup cable
• 1× 2×3 ISP interface adapter

Resources

• Hookup Guide