Raspberry Pi B(+) HAT Template

Template (PCB and interface symbol) to copy for any kind of HAT designs for Raspberry Pi B+. The PCB contains 6 layers with layer display at the lower edge. The assignment of layers is:

• top: signal, polygon connected to GND
• bottom: signal, polygon connected to GND
• layer 1: inner, signal
• layer 2: inner, polygon VCC
• layer 3: inner, polygon GND
• layer 4: inner, signal

Note: geometry tested ok