Support for CNC Shield

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Noted that the CNC shield uses less pins

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Memory usage change @ a34fe1b

Board	flash	%	RAM for global variables	%
arduino:avr:leonardo	🔺 +94 - +98	+0.33 - +0.34	🔺 +1 - +1	+0.04 - +0.04
arduino:avr:mega	🔺 +96 - +98	+0.04 - +0.04	🔺 +1 - +1	+0.01 - +0.01
arduino:avr:nano	🔺 +96 - +98	+0.31 - +0.32	🔺 +1 - +1	+0.05 - +0.05
arduino:mbed_nano:nano33ble	🔺 +64 - +64	+0.01 - +0.01	🔺 0 - +8	0.0 - 0.0
arduino:mbed_nano:nanorp2040connect	0 - 0	0.0 - 0.0	🔺 +4 - +4	0.0 - 0.0
arduino:mbed_portenta:envie_m4	🔺 +64 - +64	+0.01 - +0.01	🔺 0 - +8	0.0 - 0.0
arduino:mbed_portenta:envie_m7	🔺 +64 - +64	+0.01 - +0.01	🔺 0 - +8	0.0 - 0.0
arduino:megaavr:nona4809	🔺 +108 - +108	+0.22 - +0.22	🔺 +1 - +1	+0.02 - +0.02
arduino:megaavr:uno2018	🔺 +106 - +108	+0.22 - +0.22	🔺 +1 - +1	+0.02 - +0.02
arduino:sam:arduino_due_x_dbg	🔺 +64 - +72	+0.01 - +0.01	N/A	N/A
arduino:samd:arduino_zero_edbg	🔺 +68 - +72	+0.03 - +0.03	🔺 +4 - +4	+0.01 - +0.01
arduino:samd:mkrzero	🔺 +68 - +72	+0.03 - +0.03	🔺 +4 - +4	+0.01 - +0.01
arduino:samd:nano_33_iot	🔺 +68 - +72	+0.03 - +0.03	🔺 +4 - +4	+0.01 - +0.01

Click for full report table

Board	examples/MotorKnob flash	%	examples/MotorKnob RAM for global variables	%	examples/stepper_cnc_shield flash	%	examples/stepper_cnc_shield RAM for global variables	%	examples/stepper_oneRevolution flash	%	examples/stepper_oneRevolution RAM for global variables	%	examples/stepper_oneStepAtATime flash	%	examples/stepper_oneStepAtATime RAM for global variables	%	examples/stepper_speedControl flash	%	examples/stepper_speedControl RAM for global variables	%
arduino:avr:leonardo	98	0.34	1	0.04	N/A	N/A	N/A	N/A	98	0.34	1	0.04	98	0.34	1	0.04	94	0.33	1	0.04
arduino:avr:mega	98	0.04	1	0.01	N/A	N/A	N/A	N/A	98	0.04	1	0.01	98	0.04	1	0.01	96	0.04	1	0.01
arduino:avr:nano	98	0.32	1	0.05	N/A	N/A	N/A	N/A	98	0.32	1	0.05	98	0.32	1	0.05	96	0.31	1	0.05
arduino:mbed_nano:nano33ble	64	0.01	8	0.0	N/A	N/A	N/A	N/A	64	0.01	8	0.0	64	0.01	0	0.0	64	0.01	0	0.0
arduino:mbed_nano:nanorp2040connect	0	0.0	4	0.0	N/A	N/A	N/A	N/A	0	0.0	4	0.0	0	0.0	4	0.0	0	0.0	4	0.0
arduino:mbed_portenta:envie_m4	64	0.01	0	0.0	N/A	N/A	N/A	N/A	64	0.01	8	0.0	64	0.01	0	0.0	64	0.01	8	0.0
arduino:mbed_portenta:envie_m7	64	0.01	8	0.0	N/A	N/A	N/A	N/A	64	0.01	0	0.0	64	0.01	8	0.0	64	0.01	0	0.0
arduino:megaavr:nona4809	108	0.22	1	0.02	N/A	N/A	N/A	N/A	108	0.22	1	0.02	108	0.22	1	0.02	108	0.22	1	0.02
arduino:megaavr:uno2018	108	0.22	1	0.02	N/A	N/A	N/A	N/A	108	0.22	1	0.02	108	0.22	1	0.02	106	0.22	1	0.02
arduino:sam:arduino_due_x_dbg	72	0.01	N/A	N/A	N/A	N/A	N/A	N/A	72	0.01	N/A	N/A	72	0.01	N/A	N/A	64	0.01	N/A	N/A
arduino:samd:arduino_zero_edbg	68	0.03	4	0.01	N/A	N/A	N/A	N/A	68	0.03	4	0.01	72	0.03	4	0.01	68	0.03	4	0.01
arduino:samd:mkrzero	68	0.03	4	0.01	N/A	N/A	N/A	N/A	68	0.03	4	0.01	72	0.03	4	0.01	68	0.03	4	0.01
arduino:samd:nano_33_iot	68	0.03	4	0.01	N/A	N/A	N/A	N/A	68	0.03	4	0.01	72	0.03	4	0.01	68	0.03	4	0.01

Click for full report CSV

Board,examples/MotorKnob<br>flash,%,examples/MotorKnob<br>RAM for global variables,%,examples/stepper_cnc_shield<br>flash,%,examples/stepper_cnc_shield<br>RAM for global variables,%,examples/stepper_oneRevolution<br>flash,%,examples/stepper_oneRevolution<br>RAM for global variables,%,examples/stepper_oneStepAtATime<br>flash,%,examples/stepper_oneStepAtATime<br>RAM for global variables,%,examples/stepper_speedControl<br>flash,%,examples/stepper_speedControl<br>RAM for global variables,%
arduino:avr:leonardo,98,0.34,1,0.04,N/A,N/A,N/A,N/A,98,0.34,1,0.04,98,0.34,1,0.04,94,0.33,1,0.04
arduino:avr:mega,98,0.04,1,0.01,N/A,N/A,N/A,N/A,98,0.04,1,0.01,98,0.04,1,0.01,96,0.04,1,0.01
arduino:avr:nano,98,0.32,1,0.05,N/A,N/A,N/A,N/A,98,0.32,1,0.05,98,0.32,1,0.05,96,0.31,1,0.05
arduino:mbed_nano:nano33ble,64,0.01,8,0.0,N/A,N/A,N/A,N/A,64,0.01,8,0.0,64,0.01,0,0.0,64,0.01,0,0.0
arduino:mbed_nano:nanorp2040connect,0,0.0,4,0.0,N/A,N/A,N/A,N/A,0,0.0,4,0.0,0,0.0,4,0.0,0,0.0,4,0.0
arduino:mbed_portenta:envie_m4,64,0.01,0,0.0,N/A,N/A,N/A,N/A,64,0.01,8,0.0,64,0.01,0,0.0,64,0.01,8,0.0
arduino:mbed_portenta:envie_m7,64,0.01,8,0.0,N/A,N/A,N/A,N/A,64,0.01,0,0.0,64,0.01,8,0.0,64,0.01,0,0.0
arduino:megaavr:nona4809,108,0.22,1,0.02,N/A,N/A,N/A,N/A,108,0.22,1,0.02,108,0.22,1,0.02,108,0.22,1,0.02
arduino:megaavr:uno2018,108,0.22,1,0.02,N/A,N/A,N/A,N/A,108,0.22,1,0.02,108,0.22,1,0.02,106,0.22,1,0.02
arduino:sam:arduino_due_x_dbg,72,0.01,N/A,N/A,N/A,N/A,N/A,N/A,72,0.01,N/A,N/A,72,0.01,N/A,N/A,64,0.01,N/A,N/A
arduino:samd:arduino_zero_edbg,68,0.03,4,0.01,N/A,N/A,N/A,N/A,68,0.03,4,0.01,72,0.03,4,0.01,68,0.03,4,0.01
arduino:samd:mkrzero,68,0.03,4,0.01,N/A,N/A,N/A,N/A,68,0.03,4,0.01,72,0.03,4,0.01,68,0.03,4,0.01
arduino:samd:nano_33_iot,68,0.03,4,0.01,N/A,N/A,N/A,N/A,68,0.03,4,0.01,72,0.03,4,0.01,68,0.03,4,0.01