Digital Input causes RAIL on all cyton channels
I am attempting to set up a two-button Digital Input on my Cyton. The schematic for the simple circuit I built can be seen here (replace Arduino with Cyton)
Here is also a corresponding Playground although this link will expire in 12 days or so
My issue is that when I plug it in to the Cyton (VDD to +, Ground to GND, Pins in 13 and 18 ), and start to Stream Data in the GUI, I get all >98% RAILED readings on the channels (I've been using only 8 channels so far). I created a video describing the problem with more details, but I'm happy to provide more info.
My biggest concern is that my circuit is set up in such a way that's not good for the Cyton. Definitely don't want to fry it! lol. I noticed that after removing my breadboard and restarting streaming, all the channels were RAILED. I had to do Impedance checks on each channel (I'm not really sure what it does tbh, I just clicked around until they no longer showed Railed). I would greatly appreciate any guidance on how to
1. Set up my dual button circuit so that it works cleanly every time
2. Generally ensure my channels don't rail while I collect data (My experiment will involve collecting continuous data for over an hour every day so a stable signal will be very helpful)
My secondary question is: Why are some pins showing as 1 when there is no input to them. In the video channel 12 is 1 for no reason. And when I turn on Digital read without any input I get 2 or 3 channels that are 1 as well. I guess it's not a huge problem but curious nontheless :-)