timing

SRM-20: 4 mm/s
Shopbot: 20 mm/s

1 mil = 0.0254 mm
0.1 mil = 0.00254 mm

SRM-20/1 mil steps = 157 steps/s
SRM-20/0.1 mil steps = 1,574 steps/s
SRM-20/0.1 mil steps/10x microstep = 15,740 steps/s

Shopbot/1 mil steps = 787 steps/s
Shopbot/0.1 mil steps = 7,874 steps/s
Shopbot/0.1 mil steps/10x microstep = 78,740 steps/s

SAMD11C embedded code

Python host code

0.2 ms alarm = 1/0.0004 s loop = 2.5 kHz loop = 5 kHz byte rate

writing to port

writing to serial port

C host code

0.1 ms alarm = 10 kHz byte rate

writing to serial port