I used a different laptop than the computer I used the web app on again only as a power source (because the laptop is too old for the web app). The computer I use the web app on needs a power supply, but my wall plug destroys the signal.
My room was pretty dark, because of my blackout curtains.
I did 4 tries and always reset the data in between.
They were all the same basically:
ratio: was very stable from 0,59 - 0,62. Sometimes it was the same for about 10 seconds or so. From what Joshua wrote so far, it should be pretty stable and from 0.5-2.
score: around 0.10
score line: was very flat
I think these values don't necessarily mean I've done something wrong, but: The circle only changed a very very small bit, if at all. Almost not visible. I'm pretty sure that I wasn't able to influence it. The very small movements seemed random.
The band was pretty tight/tense. I think the LEDs were pressed into my forehead too much. See the picture. 😂 I also felt my pulse, so I think the band was too narrow. Can this be a problem?
I wore it like this to prevent light going from the LEDs to the sensor directly.
But for the last attempt I made the headband about 5cm wider and still got the same results.
During one attempt I pressed the LEDs more into my head and the ratio and the graph went down. But during a later attempt nothing happened at first, but after it the ratio remained a bit higher.
Or could it be possible that there's nothing wrong and that it just takes a few sessions to be able to change the circle?
But unfortunately I don't that's the case, because people can use e.g. the mendi device successfully from the first session on.