Capacitive sensor Arduino

#1

Hey,
I’m new to arduino en mblock. I’d like to make a program where it reads a high signal when someone touches a copper plate. Searching through the net made me find something that’s called a capacitive sensor.
Is it possible to do this with mblock, without writing your own library?How would the hardware setting look like?
Thanks,
Il_Dude

#2

Makeblock do already make a captive touch sensor see http://docs.makeblock.com/diy-platform/en/electronic-modules/sensors/me-touch-sensor.html

I have 1 and it works well

#3

Thanks for the advice but I need a bigger sensor. (Plate square 20 cm) It’s for my pupils and they have to tap a plate left/right with the palm of their hand. I’m afraid a (selfmade) button won’t last long…

#4

have a look at this https://www.youtube.com/watch?v=lqg_Ze_OiiY

#5

I’ve tried that hardware setting. I’m able to read a difference when I touch the plate in c code. I’m juist not able to notice this with an mBlock.At what value would it give a high signal because I’ve to read this as a digital pin in mBlock…

#6

There won’t be a difference between mblock and ardunio as mblock just creates ardunio code and sends it off the ardunio compiler. Scratch is a language but a cut and paste for other languages.

Open the tab on the right of mbock to see what ardunio code is being generated by the scratch blocks.

#7

I’ve checked that code but they don’t use the library for a capacitive sensor,so he never reads a high input…