In general a 'shield' is designed to plug into the Arduino's headers and can be pulled off as needed. If you build your shield with stacking headers (male on the bottom, female on the top) you can stack shields as long as there are no pin conflicts.
In general a 'shield' is designed to plug into the Arduino's headers and can be pulled off as needed. If you build your shield with stacking headers (male on the bottom, female on the top) you can stack shields as long as there are no pin conflicts.