- Your spectrum ST4 should be running the latest firmware - RC_007_95 as of 5/7/2020 - scroll to the bottom to download the SREC file attachments.
- Your Inertial Wheels and Receiver need to be updated https://nodo.film/
downloads to 0.3.1 BETA.
- You need a special cable that connects the IW Rx to the ST4's i/o port - a diagram is attached in PDF format.
To get going:
- Plug in the custom cable to the IWRx and the ST4's i/o port
- Power up the RX using USB power - from a compatible battery pack like a Vmount, or Gold Mount with USB A out.
- Power on the IW. Select Menu > Output > Remote Head > eMotimo ST4 - Go back to main Dashboard.
- Power up the Spectrum ST4 - check your firmware on startup - should be RC007_95 or greater
- On the ST4 -->Settings, third page down-->I/O port --> Set to "Inertia Wheels", click to set. Note that you only have to set the I/O port once after a firmware upgrade - then it will stick.
- On the ST4, go to main menu, then Live Motion --> Select Preset#7 - Inertia Wheels, click to set. Note that you only have to set the motor profile once after a firmware upgrade - then it will stick.
- Verify that the Inertia Wheels Dashboard says - eMotimo - ST4 Live. When this happens, there is two way communication.
Couple of notes:
- The ratios of the wheels to head are true, meaning a 20:1 on pan will require 20 rotations of the IW for 1 rotation of the Spectrum Pan Axis. Same with Tilt. To get under 1:19, you will have to modify your defaults in Menu-->Wheels --> Fastest Ratio. We have our Fastest Ratio set to 6 - it is quite fast.
- Any Motor profile of the spectrum will work - Quiet Fast, Fastest, etc. We just made a special, ultra responsive profile for IW.
- If you aren't getting communication, from the RX to the ST4, you can reset the ST4's serial port by going to Settings, third page down-->I/O port --> Set and click anything but Inertia Wheels, click to set, then switch back. As of Mid April, we made this connection auto reset so this shouldn't be needed most of the time.
- Slider and Looping Control - already here
- Record / playback and layering . . .