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?