https://www.kobakant.at/DIY/?p=6577
This bracelet is basically a wearable continuity meter that translates the electrical resistance between two fingers into sound.
What's most intriguing about this project is that, instead of using sensors to collect data, it leverages subtle changes in electrical current to reflect the varying resistance between two points, using that as input to alter the sound output. This is very user-friendly for someone like me who hasn't worked with Arduino before. And I may think of that as a usable way to get data.
It may mainly focus on functioning, so we can see circuit components attached on the soft fabric. Fabrics are designed to fit the hand’s size.
The problem Kalmit is seeking to solve is twofold:
Wearable devices that solve issue number 1 already exist, but are either expensive or use nothing but heart rate or possibly galvanic skin response to judge stress. They then provide ways to register your stress response so you can know what locations generate stress, and so on.
At first, I also wanted to work on a project related to anxiety, but after seeing this, I became more cautious—am I capable of accurately measuring anxiety levels? And are the methods reliable?
I did a little search about the sensor for mental pressure or anxiety. For cheaper ones, people normally use Galvanic Skin Response Sensor and Heart Rate Sensor, but as it said above, these can be not reliable.
The sensors this project will use:
Kalmit will seek to operate in this space, providing a low-cost option for people with anxiety that will help train them to recognize and mitigate their own anxiety. It will have the following sensors: Heart rate Galvanic skin response EMG sensors connected through bluetooth to the device Microphone Motion?
It will have a USB port as the primary charging port. It may also have a vibration motor. The user interface on the device itself will consist of a single multi-color LED. All other interaction with the device and its additional sensors will happen through the phone app.