Hi,
Recently got this and I've been having trouble getting the device to work. I've completely soldered everything and put the HEGduino in the headband and have tried putting it on. Whenever I press it against my forehead, it doesn't seem to work (screenshot w/ numbers attached). It sometimes works when I press my finger on it (sometimes gets the same results as in the screenshot). Looking through some of the FAQ, it doesn't seem like the sensor is saturated as I'm not getting high values for the red/IR. I'm wondering is the reason for this problem because I might have soldered the OPT 101 incorrectly?
I think I know what's wrong but I'm wondering if my soldering the OPT 101 is incorrect - right now when i press on the OPT 101 while it's on my forehead (when I touch the back leads) it works as intended. Maybe I fried something or something is not properly connected? Here's what it looks like. Do you know whether I may have fried something?