First post in a while. I am finding I am a terrible note taker and keep forgetting what I learn so I thought it might be better to resume old habits and use my blog as a personal reminder site.
I am looking at a different sensor I bought from Hshop. A simple pressure sensor and using the Hummingbird Duo with Scratch I coded it as shown in the photo below.
I ran into this problem as I was helping a student during Project X. We were trying to to make a cardboard button (more on that in a bit). Our issue was that the sensor values were all over the place when the button was up although it worked fine when pressed.
The issue had to do with a floating value. What was needed was a pull up or pull down resistor. Although I remember reading about this before (there are many many explanations) a search brought up a real nice explanation (a great Bald Engineer video https://www.youtube.com/watch?v=wxjerCHCEMg). So the next step is to connect a line from the sensor line with a 10k resistor and connect it to the negative pin to bring the voltage down to 0.
