This is a demo showing some custom hall effect sensors I had made for me. The creator would like to sell more of these. I put a link in the video description to his video just give him a shout. These work with grbl and tiny g.
https://youtu.be/F3XpLWkOgSw
$17.00 each for 3 = $50 plus shipping and $90.00 for 6 plus shipping?
My parts order will arrive tomorrow and I will have 12 on hand for anyone interested.