High Fidelity measuring methods

[daspayth]

Hi all,

I have a project where I am looking at determining the distance between 3”-8” that’s accurate to 1/16”

I have a current strategy using a sort of fitted device (think a spring loaded tube) where a rotary decoder could be used. This will work and fidelity is excellent.

However I’m thinking there may be alternatives such as optic/laser instead of a slide bar device, but I haven’t found anything that looks to have the range/fidelity.

Any suggestions appreciated

[PJ_Glasso]

Hi there,
What about Radar,

Reading distance, using esp32 and seeed 24ghz human static lite sensor

Hi there, I pretty sure the code there, does exactly that, It’s “zero” ? I would try the Tool and see where that takes it. Also verify the connections and orientation, I see several folks have it upside down, LOL GL PJ (continued) 10 minutes later… I had one of these NIB, popped it open and soldered the sockets to it, mounted a Xiao ESP32C3 to it, Went to google play and down loaded the Radar app. Super easy I turned on Bluetooth on my phone(sam1…

or something along this line?
HTH
GL PJ

[daspayth]

Great idea I will check it out