Thursday, January 29, 2015

GBTimelapse as a Slave to NMX or any Moco Device

GBTimelapse has extended its functionality with motion control systems to synchronize with virtually any motion control device that has a camera shutter release jack.

GBTimelapse previously had a list of supported motion control systems that included the Dynamic Perception MX2 and MX3 and the eMotimo TB3.  Now, GBTimelapse will work with virtually any motion control system that has a camera shutter trigger.

Typically, the camera jack connects to the camera shutter by a special cable. Instead of connecting the jack to a camera, you can now connect it to a Phidget 2/2/2 USB device attached to  a laptop computer  running GBTimelapse. When GBTimelapse is in the Slave/Phidget mode, it will wait and capture an image when the Phidget detects a motion control (moco) camera shutter release signal.

The image below shows GBTimelapse connected as a slave to a Dynamic Perception NMX motion controller. For clarity this image just shows the basic parts, not the motion control gear itself.  This set-up can be used in the identical way with any other system that has a camera shutter trigger.

The GBTimelapse laptop computer requires one Phidget 2/2/2 interface wired for a connection to its digital input by a mono jack. All you need is the Phidget and a female mono jack – the cable comes with the Phidget.

Just solder the yellow (digital input 0) wire and a black (ground) wire to the mono jack terminals.

You can get the Phidget 2/2/2 Interface here…

And the 2.5mm Female Mono Jack from Digi-Key (part number CP-2520-ND) here… 

Follow the easy 6-step configuration below to get started!

Configuring GBTimelapse for Slave/Phidget Mode

Step 1Connect the moco device camera output to the Phidget using a mono or stereo 2.5mm male/male cable.

Step 2 - Enable Master/Slave and Phidget options in the GBTimelapse Tools/Options Feature tab.

Step 3 - Set the Phidget options to capture an image when digital input 0 is triggered.

Step 4 - Set GBTimelapse to run in Slave/Phidget mode.

Step 5 - Begin the time-lapse and GBTimelapse will wait for signals from the moco device.

Step 6 - Start the Moco device program. When the device sends a camera shutter signal GBTimelapse will control the camera and capture an image. GBTimelapse will follow its program and preform its AutoRamping controls adjusting Av, Tv, ISO as it normally does for flicker free “holy grail” time-lapse at sunset or sunrise.

Good luck!


Stephanos said...

What purpose does the Phidget serve that a standard 2.5mm-USB(A) cable cannot?

tlapse said...

The Phidget is a USB device that interfaces between the NMX and the computer. When the NMX closes the contact, the Phidget detects the change via the cable and sends a message over USB to the computer software.