Automated Blinds

When I found out that Sonoff came out with a nice affordable app-based controller (the Sonoff DualR3), I had a path forward with automating blinds.

My blinds can do the following:
- automatically open 30 minutes after sunrise
- automatically close 30 minutes before sunset
- run the motor 6 seconds
- automatically shut off if exceeds a user-specified wattage (closing the blinds when they're already closed)
- "manual" switch on the side of the unit that you can control the blinds w/o app

2 main parts you need to print are included:
- the housing the holds the Sonoff, motor, and interfaces with the blinds
- the coupler that links the motor with the blinds mechanism

Parts you will need to buy:
1. Blinds tilt mechanism (designed to be used with a rod)
https://www.amazon.com/gp/product/B00JP4Z0NE/
2. Sonoff DualR3 (I believe the competing Shelly1 can do the same but i have no experience). The wiring diagram that comes with the unit is enough to help figure out how this sho