This is an educational shield for the Tinusaur board that has 4 I/O components - 2 input and 2 output; of which 3 analog and 3 digital:

• LED (output, analog or digital)
• Buzzed (output, analog or digital)
• Button (input, digital)
• Photo-resistor (input, analog)

Briefly, the Tinusaur is a minimal micro-controller hardware configuration based on Atmel AVR ATtiny family of products and more specifically those with DIP-8 case such as ATtiny25/ATtiny45/ATtiny85, ATtiny13 as well as their variations.

It’s a kit. You assemble it yourself.

The home of the Tinusaur is at this address: http://tinusaur.org

The goal of the Tinusaur project is to have a simple, cheap, accessible, quick-start platform for everyone interested in learning and creating things.