After four years absence, Arduino returns to my top of mind. Time to do some more remote motor control projects. Read more
Series: Mostly Plastic DIY Loop Rotator
You can rotate a small loop antenna with 3D printed parts, a DC motor and some hardware. Add the NodeMCU for remote control over Wi-Fi.
L293D NodeMCU Motor Shield Works Fine
My low cost L293D Motor Shield will do the trick for remote controlling a new loop antenna. You can use a stepper to tune the antenna with rotation provided by a larger DC motor. Read more
Loop Remote Control Electronics Board
Here is my loop remote control electronics board. Not a PCB, but a 3D printed mount for all the electronics modules. Read more
Mostly Plastic Rotator Works – Passes Smoke Test
Well, my design for a cheap, mostly plastic rotator for small loop antennas works. It took me a while to get this built. Read more
Plastic Worm Gear to Tune Loop Capacitor
So, here’s my mostly plastic worm gear for tuning a butterfly capacitor in a small transmitting loop. If you have a 3D printer, you can make one of these for under $10. Read more