Simple mount for converting an IKEA roller blind to a smart blind.

BOM:

1x 608 bearing

1x 6mm, 2GT214 timing belt

1x 20 tooth 2GT 6mm pulley for stepper motor

4x 3x16mm SHCS bolts

1x Pancake Nema 17 stepper motor & driver (I used a TMC 2208)

1x ESP32

Build Instructions:

• Loosely mount the motor to the base plate, with the belt around it's pulley
• Insert the 608 bearing into the printed pulley
• Install printed pulley on the base plate, while also installing the belt around the printed pulley
• Tension the belt by moving the motor down, and tightening it's mounting screws
• Remove the spring mechanism from the roller tube
• Remove the printed pulley and insert it into the blind's tube
• Replace the original tension mount (the mount with a small rectangular protrusion) with the printed base
• Mount the roller blinds using the original idler mount and the new printed mount, while also installing the belt around the printed pulley
• Connect the motor to the motor driver and the ESP32
• Install firmware of your choosing
  • I used esphome with homeassistant
  • the provided yaml file configures the esp32 properly as a shade for HA, and exposes 2 switches for calibraion
    1. turn on the calibration switch
    2. turn on the calibration button → shade will start moving downwards
    3. once the shades arrives at the bottommost location, turn on the calibration button again → shade will start moving upwards
    4. once the shade arrives at the topmost location, turn on the calibration button again

Config file and setup heavily based on Motor-On-A-Roller-Blind-for-ESPHOME