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Easy DIY Cable for WS2812B Strips
Solar Heater for My Shop
milling small pcb's (using a big machine to do little things)
Toughening a RFID Door Opener
Low Cost UV Curing Box for 3D Resin Prints
How you do send a signal to pull the door handle?
I understand what you've built, but won't a simple linear actuator worked easier and quicker instead of a stepper motor?
Junkbot Safari: Motors, Gears, Capacitors and Gravy
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