Miniboards

See https://github.com/jnoss/atmega328-miniboard

This is an atmega328 (arduino compatible) board that uses 3-pin headers (power and ground for each signal pin) enabling the use of very small shields.

See minishields directory for:

• led4pins.sch
• led8pins.sch
• light sensor microshield v3.sch
• rgb_v3.sch
• seg7_minishield.sch
• temp sensor.sch

(Photo credit Paul Horowitz.)

Gerber preview image for a preview of the top layer of atmega328 miniboard:

Version 2 in development - new features

• keying SVG headers to prevent reverse connection
• ISP header rotated for easier connection
• at86rf header added - see at86 board

Photos: From left to right:

• atmega644 board with a 4-Led shield
• atmega328 board with GA1A12S202 light sensor and MCP9700 temperature sensor shields
• another 644 board
• atmega328 board with an RGB led shield and a spring switch shield

(Photo credit Paul Horowitz.)

Board preview made using git hooks from https://github.com/jnoss/eagle-preview-autogen, forked from https://github.com/tekdemo/eagle-preview-autogen