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|<big>'''D''' ''md ld''</big> || set delays<sup>**</sup> || set stepper delays for move (md) and line (ld) in milliseconds<br/>default 20 50, typically 10 - 150 ms, range 1 ... 255
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|<big>'''P''' ''md ld''</big> || set pen up and down<sup>**</sup> || set servo positions for the pen<br/>default 50 100, typically 10 - 150 ms, range 1 ... 255
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|<big>'''H'''</big> || move home<sup>**</sup> || move to origin position (0/0 mm)