Änderungen

We will see if the great potential I can see in it can be realized :)

== Features ==

• Shift register pins that allow stacking an indefinite number of shields. Shield configuration and SPI chip select are provided from shift registers on the shields.

• designated PINS for SPI and TWI

• PINS for FAULT and INTTERUPT (ideally these can be configured via shift register either)

• ENABLE pin, so you can easily design an “Emergency Off” button

• leave out 16 pins in the left row and you get lots of routing space or space for connectors (you will lose access to these pins of cause, so you will have to think about the stacking order)

• designated PINs for heat management (leave them out to get space for airflow and/or heatsink)

• 5V, 3.3V and VCC PINs

• Serial Interconnect pins, so you can easily implement a multi-processor platform

== Design decisions explained ==

There are lots of Arduino Shields out there. When I started to think about implementing this idea I thought being compatible to old shields would be great, since the “Skyline Shield Design” is almost certainly going to stay niche product.