GUI - calibration

[bostjanvihar]

• no movement at values below 40% pwm
• 100% pwm is not accurate (total range needs to be 0.1 - 100 RPM)
• sometimes click-ing fails
• during the process it's not completely clear which step you are in, add step indicator (instead of pup-up window) + activate/deactivate buttons (e.g. start button could transform into continue button, or be deactivated after first step), or show 'next button to click'

[NejcKle]

• during the process it's not completely clear which step you are in: Added numbered step indicator in 7014fd0.

• activate/deactivate buttons (e.g. start button could transform into continue button, or be deactivated after first step), or show 'next button to click': Buttons now grey out based on current step. Added in: 7824dcb.

[NejcKle]

• sometimes click-ing fails: Should be fixed in 7824dcb. @bostjanvihar please test further.

[NejcKle]

• no movement at values below 40% pwm: Clamped rpm values between 35% and 100% in f39be9b.

[bostjanvihar]

@NejcKle if values are clamped between 35% and 100% change label in "single flow speed" with color change, when boundary values are reached. Range seems very low! Can we adjust the voltage dynamically (e.g. 24 to 90V) to increase the range? @SloMusti , @LukaBanovic