Motorized Roller Shade
thingiverse
I wanted to build a cheap remote controlled roller shade. This uses Blynk and AccelStepper running on a NodeMCU. (Final will run a Wemos D1 Mini) It is powered by a 28BYJ-48 driven by a ULN2003 board. This is so I could just power it from a standard 5v phone charger. (I would recommend 1a+, but currently have it powered off a USB 2 port on my PC.) My software project for this: https://github.com/mrcory/Roller-Shade-Controller Note: The gears labeled "(Alternate Ratio)" are near 2:1 ratio instead of near 1:1. A special thanks to 3dexplorer for https://www.thingiverse.com/thing:5505
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