To use FSR's with the smoothieboard an aux board is needed to interface the FSR's to the smoothieboard's endstop input. Smoothieware will accept this input as if it was a simple mechanical switch.
The Deltabot group is where most discussion on using FSR's is located.
Topics to look for are:
- Alternative boards like the arduino mini.
- WingWong's trinket derived design.
- Mounting of FSR's