Has anyone got Yart working with the original RPi-Film-Capture wiring?

[Dan Monaghan]

Hi everyone,

I've got a setup that I built for the RPI-Film-Capture project, sticking to the wiring as per https://github.com/jphfilm/rpi-film-capture/wiki/Wiring . I have no problems booting the software up - but can't get any motor action.

I am wondering if anyone has their rig setup so they can use both Yart and RPI-Film_Capture, and if so - what are your pin settings?

I look forward to having a go with Yart - it seems a little more more advanced and better supported than RPI-Film.

Thanks heaps, 

Dan

[Dominique Galland]

hi Dan,

Yes I think my yart project goes a bit further than the original RPI-Film-Capture project which doesn't seem to be maintained anymore.

With yart I have finished all my captures and my equipment is put away, but I am still answering questions.

Basically the motor controller needs three pins:

ENA controls the ON/OFF of the motor

DIR controls the direction of rotation

PULSE 

Next to that there are two parameters:

Steps per Rev: Number of pulses per revolution

Motor/Frame Ratio: Ratio between the motor and the image axis of the projector 

By default Steps per Rev is 200 if micro-stepping is not used.

Then the wiring depends on the controller used, in my case with the TB6600

ENA- PUL- DIR- to GND

ENA+ DIR+ PUL+ To Pi GPIO pins

If ENA+ HIGH the motor is Off Line

This gives me:

Important warning : You have to check HIGH  or not depending on the required signal level, here:

17 LOW -> Motor is ON 

24 LOW  ->  the opto Trigger is ON
23 HIGH -> Motor Pulse

With a A4988 controller another user suggested

DIR > GPIO 18

STEP > GPIO 23

SLEEP > GPIO 17

Jumper between A4988 SLEEP and RESET

If SLEEP is HIGH the motor is ON

So In that case probably you have to check High for 17 and 24 pins
17 HIGH -> Motor ON

24  HIGH  -> Reed Switch ON
23 HIGH ->Pulse

Regards

[Dominique Galland]

I can add that as a first test:

When you run the script on the PI the motor axis must be free and can be turned by hand.

When you hit "Motor On" the motor is  powered on and cannot be turned by hand.

Then try Forward and Backward On