Tell us about yourself!
Built this, and it's working well. I did some research and read that a voltage based sensor will fail eventually because it is effectively an electroplating device and one of the probes will quickly corrode. I found some capacitive measuring devices but there like $8 each. My question is - have you (or anyone) seen how quickly this corrosion happens? If it takes several months it might be OK to just design this so the nails are easy to replace.
How would you control the voltage pulse? I just have it going straight from an ESP8266 3V pin and into the A0 (analog) pin. Would I need to use a transistor on one of the digital pins? If so, that might open the door to multiple sensors from a single ESP8266 which is interesting. (Obviously I have just enough EE training to be dangerous)
I don't suppose you have a picture of what your setup looks like from ABOVE the table? I'm thinking of doing this to a desk and want to know what it'll look like. Def. don't want the crazy bright LEDs in my field of view, but also wonder if the color will radiate to the floor very well. i.e. during xmas I wanna do red/green and want to know how close the pixels can be and still show a specific color on the floor/wall
Under Table LED Lighting (with WS2821b LEDs)
Making Perfectly Straight Cuts
I think the process of making the same cut 5+ times is EXCELLENT practice. I have a (super cheap) projector mounted above my bench that made laying out the pips a little easier - but not perfect. All in all happy with the outcome. Wish I'd thought about getting the color/pip count consistent on each die.
Nope. Nope. Nope.
Looks like he used a Pocket Screw: And based on the super long drill bit I'm betting he used a Kreg K4MS Jig Master System... which I have and love.
How to find a break in an invisible dog fence